Shorter paths to HAL, ExtUI (#17156)

2020-03-13 16:29:29 -05:00
parent ad980a72f7
commit 6bead0c1b0
600 changed files with 228 additions and 227 deletions
--- a/Marlin/src/HAL/LPC1768/DebugMonitor.cpp
+++ b/Marlin/src/HAL/LPC1768/DebugMonitor.cpp
@ -0,0 +1,327 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../core/macros.h"
+#include "../../core/serial.h"
+#include <stdarg.h>
+
+#include "../shared/backtrace/unwinder.h"
+#include "../shared/backtrace/unwmemaccess.h"
+#include "watchdog.h"
+#include <debug_frmwrk.h>
+
+
+// Debug monitor that dumps to the Programming port all status when
+// an exception or WDT timeout happens - And then resets the board
+
+// All the Monitor routines must run with interrupts disabled and
+// under an ISR execution context. That is why we cannot reuse the
+// Serial interrupt routines or any C runtime, as we don't know the
+// state we are when running them
+
+// A SW memory barrier, to ensure GCC does not overoptimize loops
+#define sw_barrier() __asm__ volatile("": : :"memory");
+
+// (re)initialize UART0 as a monitor output to 250000,n,8,1
+static void TXBegin() {
+}
+
+// Send character through UART with no interrupts
+static void TX(char c) {
+  _DBC(c);
+}
+
+// Send String through UART
+static void TX(const char* s) {
+  while (*s) TX(*s++);
+}
+
+static void TXDigit(uint32_t d) {
+  if (d < 10) TX((char)(d+'0'));
+  else if (d < 16) TX((char)(d+'A'-10));
+  else TX('?');
+}
+
+// Send Hex number thru UART
+static void TXHex(uint32_t v) {
+  TX("0x");
+  for (uint8_t i = 0; i < 8; i++, v <<= 4)
+    TXDigit((v >> 28) & 0xF);
+}
+
+// Send Decimal number thru UART
+static void TXDec(uint32_t v) {
+  if (!v) {
+    TX('0');
+    return;
+  }
+
+  char nbrs[14];
+  char *p = &nbrs[0];
+  while (v != 0) {
+    *p++ = '0' + (v % 10);
+    v /= 10;
+  }
+  do {
+    p--;
+    TX(*p);
+  } while (p != &nbrs[0]);
+}
+
+// Dump a backtrace entry
+static bool UnwReportOut(void* ctx, const UnwReport* bte) {
+  int* p = (int*)ctx;
+
+  (*p)++;
+  TX('#'); TXDec(*p); TX(" : ");
+  TX(bte->name?bte->name:"unknown"); TX('@'); TXHex(bte->function);
+  TX('+'); TXDec(bte->address - bte->function);
+  TX(" PC:");TXHex(bte->address); TX('\n');
+  return true;
+}
+
+#ifdef UNW_DEBUG
+  void UnwPrintf(const char* format, ...) {
+    char dest[256];
+    va_list argptr;
+    va_start(argptr, format);
+    vsprintf(dest, format, argptr);
+    va_end(argptr);
+    TX(&dest[0]);
+  }
+#endif
+
+/* Table of function pointers for passing to the unwinder */
+static const UnwindCallbacks UnwCallbacks = {
+  UnwReportOut,
+  UnwReadW,
+  UnwReadH,
+  UnwReadB
+  #ifdef UNW_DEBUG
+   ,UnwPrintf
+  #endif
+};
+
+
+/**
+ * HardFaultHandler_C:
+ * This is called from the HardFault_HandlerAsm with a pointer the Fault stack
+ * as the parameter. We can then read the values from the stack and place them
+ * into local variables for ease of reading.
+ * We then read the various Fault Status and Address Registers to help decode
+ * cause of the fault.
+ * The function ends with a BKPT instruction to force control back into the debugger
+ */
+extern "C"
+void HardFault_HandlerC(unsigned long *sp, unsigned long lr, unsigned long cause) {
+
+  static const char* causestr[] = {
+    "NMI","Hard","Mem","Bus","Usage","Debug","WDT","RSTC"
+  };
+
+  UnwindFrame btf;
+
+  // Dump report to the Programming port (interrupts are DISABLED)
+  TXBegin();
+  TX("\n\n## Software Fault detected ##\n");
+  TX("Cause: "); TX(causestr[cause]); TX('\n');
+
+  TX("R0   : "); TXHex(((unsigned long)sp[0])); TX('\n');
+  TX("R1   : "); TXHex(((unsigned long)sp[1])); TX('\n');
+  TX("R2   : "); TXHex(((unsigned long)sp[2])); TX('\n');
+  TX("R3   : "); TXHex(((unsigned long)sp[3])); TX('\n');
+  TX("R12  : "); TXHex(((unsigned long)sp[4])); TX('\n');
+  TX("LR   : "); TXHex(((unsigned long)sp[5])); TX('\n');
+  TX("PC   : "); TXHex(((unsigned long)sp[6])); TX('\n');
+  TX("PSR  : "); TXHex(((unsigned long)sp[7])); TX('\n');
+
+  // Configurable Fault Status Register
+  // Consists of MMSR, BFSR and UFSR
+  TX("CFSR : "); TXHex((*((volatile unsigned long *)(0xE000ED28)))); TX('\n');
+
+  // Hard Fault Status Register
+  TX("HFSR : "); TXHex((*((volatile unsigned long *)(0xE000ED2C)))); TX('\n');
+
+  // Debug Fault Status Register
+  TX("DFSR : "); TXHex((*((volatile unsigned long *)(0xE000ED30)))); TX('\n');
+
+  // Auxiliary Fault Status Register
+  TX("AFSR : "); TXHex((*((volatile unsigned long *)(0xE000ED3C)))); TX('\n');
+
+  // Read the Fault Address Registers. These may not contain valid values.
+  // Check BFARVALID/MMARVALID to see if they are valid values
+  // MemManage Fault Address Register
+  TX("MMAR : "); TXHex((*((volatile unsigned long *)(0xE000ED34)))); TX('\n');
+
+  // Bus Fault Address Register
+  TX("BFAR : "); TXHex((*((volatile unsigned long *)(0xE000ED38)))); TX('\n');
+
+  TX("ExcLR: "); TXHex(lr); TX('\n');
+  TX("ExcSP: "); TXHex((unsigned long)sp); TX('\n');
+
+  btf.sp = ((unsigned long)sp) + 8*4; // The original stack pointer
+  btf.fp = btf.sp;
+  btf.lr = ((unsigned long)sp[5]);
+  btf.pc = ((unsigned long)sp[6]) | 1; // Force Thumb, as CORTEX only support it
+
+  // Perform a backtrace
+  TX("\nBacktrace:\n\n");
+  int ctr = 0;
+  UnwindStart(&btf, &UnwCallbacks, &ctr);
+
+  // Disable all NVIC interrupts
+  NVIC->ICER[0] = 0xFFFFFFFF;
+  NVIC->ICER[1] = 0xFFFFFFFF;
+
+  // Relocate VTOR table to default position
+  SCB->VTOR = 0;
+
+  // Clear cause of reset to prevent entering smoothie bootstrap
+  HAL_clear_reset_source();
+
+  // Restart watchdog
+  #if ENABLED(USE_WATCHDOG)
+    //WDT_Restart(WDT);
+    watchdog_init();
+  #endif
+
+  // Reset controller
+  NVIC_SystemReset();
+
+  // Nothing below here is compiled because NVIC_SystemReset loops forever
+
+  for (;;) {
+    #if ENABLED(USE_WATCHDOG)
+      watchdog_init();
+    #endif
+  }
+}
+
+extern "C" {
+__attribute__((naked)) void NMI_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#0")
+    A("b HardFault_HandlerC")
+  );
+}
+
+__attribute__((naked)) void HardFault_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#1")
+    A("b HardFault_HandlerC")
+  );
+}
+
+__attribute__((naked)) void MemManage_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#2")
+    A("b HardFault_HandlerC")
+  );
+}
+
+__attribute__((naked)) void BusFault_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#3")
+    A("b HardFault_HandlerC")
+  );
+}
+
+__attribute__((naked)) void UsageFault_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#4")
+    A("b HardFault_HandlerC")
+  );
+}
+
+__attribute__((naked)) void DebugMon_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#5")
+    A("b HardFault_HandlerC")
+  );
+}
+
+/* This is NOT an exception, it is an interrupt handler - Nevertheless, the framing is the same */
+__attribute__((naked)) void WDT_IRQHandler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#6")
+    A("b HardFault_HandlerC")
+  );
+}
+
+__attribute__((naked)) void RSTC_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#7")
+    A("b HardFault_HandlerC")
+  );
+}
+}
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/HAL.cpp
+++ b/Marlin/src/HAL/LPC1768/HAL.cpp
@ -0,0 +1,87 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../inc/MarlinConfig.h"
+#include "../shared/Delay.h"
+#include "../../../gcode/parser.h"
+
+#if ENABLED(USE_WATCHDOG)
+  #include "watchdog.h"
+#endif
+
+uint32_t HAL_adc_reading = 0;
+
+// U8glib required functions
+extern "C" void u8g_xMicroDelay(uint16_t val) {
+  DELAY_US(val);
+}
+extern "C" void u8g_MicroDelay() {
+  u8g_xMicroDelay(1);
+}
+extern "C" void u8g_10MicroDelay() {
+  u8g_xMicroDelay(10);
+}
+extern "C" void u8g_Delay(uint16_t val) {
+  delay(val);
+}
+//************************//
+
+// return free heap space
+int freeMemory() {
+  char stack_end;
+  void *heap_start = malloc(sizeof(uint32_t));
+  if (heap_start == 0) return 0;
+
+  uint32_t result = (uint32_t)&stack_end - (uint32_t)heap_start;
+  free(heap_start);
+  return result;
+}
+
+// scan command line for code
+//   return index into pin map array if found and the pin is valid.
+//   return dval if not found or not a valid pin.
+int16_t PARSED_PIN_INDEX(const char code, const int16_t dval) {
+  const uint16_t val = (uint16_t)parser.intval(code, -1), port = val / 100, pin = val % 100;
+  const  int16_t ind = (port < ((NUM_DIGITAL_PINS) >> 5) && pin < 32) ? ((port << 5) | pin) : -2;
+  return ind > -1 ? ind : dval;
+}
+
+void flashFirmware(int16_t value) {
+  NVIC_SystemReset();
+}
+
+void HAL_clear_reset_source(void) {
+  #if ENABLED(USE_WATCHDOG)
+    watchdog_clear_timeout_flag();
+  #endif
+}
+
+uint8_t HAL_get_reset_source(void) {
+  #if ENABLED(USE_WATCHDOG)
+    if (watchdog_timed_out()) return RST_WATCHDOG;
+  #endif
+  return RST_POWER_ON;
+}
+
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/HAL.h
+++ b/Marlin/src/HAL/LPC1768/HAL.h
@ -0,0 +1,218 @@
+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * HAL_LPC1768/HAL.h
+ * Hardware Abstraction Layer for NXP LPC1768
+ */
+
+#define CPU_32_BIT
+
+void HAL_init();
+
+#include <stdint.h>
+#include <stdarg.h>
+#include <algorithm>
+
+extern "C" volatile uint32_t _millis;
+
+#include "../shared/Marduino.h"
+#include "../shared/math_32bit.h"
+#include "../shared/HAL_SPI.h"
+#include "fastio.h"
+#include "watchdog.h"
+#include "timers.h"
+#include "MarlinSerial.h"
+
+#include <adc.h>
+#include <pinmapping.h>
+#include <CDCSerial.h>
+
+//
+// Default graphical display delays
+//
+#ifndef ST7920_DELAY_1
+  #define ST7920_DELAY_1 DELAY_NS(600)
+#endif
+#ifndef ST7920_DELAY_2
+  #define ST7920_DELAY_2 DELAY_NS(750)
+#endif
+#ifndef ST7920_DELAY_3
+  #define ST7920_DELAY_3 DELAY_NS(750)
+#endif
+
+#if SERIAL_PORT == -1
+  #define MYSERIAL0 UsbSerial
+#elif SERIAL_PORT == 0
+  #define MYSERIAL0 MSerial
+#elif SERIAL_PORT == 1
+  #define MYSERIAL0 MSerial1
+#elif SERIAL_PORT == 2
+  #define MYSERIAL0 MSerial2
+#elif SERIAL_PORT == 3
+  #define MYSERIAL0 MSerial3
+#else
+  #error "SERIAL_PORT must be from -1 to 3. Please update your configuration."
+#endif
+
+#ifdef SERIAL_PORT_2
+  #if SERIAL_PORT_2 == SERIAL_PORT
+    #error "SERIAL_PORT_2 must be different than SERIAL_PORT. Please update your configuration."
+  #elif SERIAL_PORT_2 == -1
+    #define MYSERIAL1 UsbSerial
+  #elif SERIAL_PORT_2 == 0
+    #define MYSERIAL1 MSerial
+  #elif SERIAL_PORT_2 == 1
+    #define MYSERIAL1 MSerial1
+  #elif SERIAL_PORT_2 == 2
+    #define MYSERIAL1 MSerial2
+  #elif SERIAL_PORT_2 == 3
+    #define MYSERIAL1 MSerial3
+  #else
+    #error "SERIAL_PORT_2 must be from -1 to 3. Please update your configuration."
+  #endif
+  #define NUM_SERIAL 2
+#else
+  #define NUM_SERIAL 1
+#endif
+
+#ifdef DGUS_SERIAL_PORT
+  #if DGUS_SERIAL_PORT == SERIAL_PORT
+    #error "DGUS_SERIAL_PORT must be different than SERIAL_PORT. Please update your configuration."
+  #elif defined(SERIAL_PORT_2) && DGUS_SERIAL_PORT == SERIAL_PORT_2
+    #error "DGUS_SERIAL_PORT must be different than SERIAL_PORT_2. Please update your configuration."
+  #elif DGUS_SERIAL_PORT == -1
+    #define DGUS_SERIAL UsbSerial
+  #elif DGUS_SERIAL_PORT == 0
+    #define DGUS_SERIAL MSerial
+  #elif DGUS_SERIAL_PORT == 1
+    #define DGUS_SERIAL MSerial1
+  #elif DGUS_SERIAL_PORT == 2
+    #define DGUS_SERIAL MSerial2
+  #elif DGUS_SERIAL_PORT == 3
+    #define DGUS_SERIAL MSerial3
+  #else
+    #error "DGUS_SERIAL_PORT must be from -1 to 3. Please update your configuration."
+  #endif
+#endif
+
+//
+// Interrupts
+//
+#define CRITICAL_SECTION_START()  uint32_t primask = __get_PRIMASK(); __disable_irq()
+#define CRITICAL_SECTION_END()    if (!primask) __enable_irq()
+#define ISRS_ENABLED() (!__get_PRIMASK())
+#define ENABLE_ISRS()  __enable_irq()
+#define DISABLE_ISRS() __disable_irq()
+
+//
+// Utility functions
+//
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+int freeMemory();
+#pragma GCC diagnostic pop
+
+//
+// ADC API
+//
+
+#define ADC_MEDIAN_FILTER_SIZE (23) // Higher values increase step delay (phase shift),
+                                    // (ADC_MEDIAN_FILTER_SIZE + 1) / 2 sample step delay (12 samples @ 500Hz: 24ms phase shift)
+                                    // Memory usage per ADC channel (bytes): (6 * ADC_MEDIAN_FILTER_SIZE) + 16
+                                    // 8 * ((6 * 23) + 16 ) = 1232 Bytes for 8 channels
+
+#define ADC_LOWPASS_K_VALUE    (2)  // Higher values increase rise time
+                                    // Rise time sample delays for 100% signal convergence on full range step
+                                    // (1 : 13, 2 : 32, 3 : 67, 4 : 139, 5 : 281, 6 : 565, 7 : 1135, 8 : 2273)
+                                    // K = 6, 565 samples, 500Hz sample rate, 1.13s convergence on full range step
+                                    // Memory usage per ADC channel (bytes): 4 (32 Bytes for 8 channels)
+
+#define HAL_ADC_RESOLUTION     12   // 15 bit maximum, raw temperature is stored as int16_t
+#define HAL_ADC_FILTERED            // Disable oversampling done in Marlin as ADC values already filtered in HAL
+
+using FilteredADC = LPC176x::ADC<ADC_LOWPASS_K_VALUE, ADC_MEDIAN_FILTER_SIZE>;
+extern uint32_t HAL_adc_reading;
+[[gnu::always_inline]] inline void HAL_start_adc(const pin_t pin) {
+  HAL_adc_reading = FilteredADC::read(pin) >> (16 - HAL_ADC_RESOLUTION); // returns 16bit value, reduce to required bits
+}
+[[gnu::always_inline]] inline uint16_t HAL_read_adc() {
+  return HAL_adc_reading;
+}
+
+#define HAL_adc_init()
+#define HAL_ANALOG_SELECT(pin) FilteredADC::enable_channel(pin)
+#define HAL_START_ADC(pin)     HAL_start_adc(pin)
+#define HAL_READ_ADC()         HAL_read_adc()
+#define HAL_ADC_READY()        (true)
+
+// Test whether the pin is valid
+constexpr bool VALID_PIN(const pin_t pin) {
+  return LPC176x::pin_is_valid(pin);
+}
+
+// Get the analog index for a digital pin
+constexpr int8_t DIGITAL_PIN_TO_ANALOG_PIN(const pin_t pin) {
+  return (LPC176x::pin_is_valid(pin) && LPC176x::pin_has_adc(pin)) ? pin : -1;
+}
+
+// Return the index of a pin number
+constexpr int16_t GET_PIN_MAP_INDEX(const pin_t pin) {
+  return LPC176x::pin_index(pin);
+}
+
+// Get the pin number at the given index
+constexpr pin_t GET_PIN_MAP_PIN(const int16_t index) {
+  return LPC176x::pin_index(index);
+}
+
+// Parse a G-code word into a pin index
+int16_t PARSED_PIN_INDEX(const char code, const int16_t dval);
+// P0.6 thru P0.9 are for the onboard SD card
+#define HAL_SENSITIVE_PINS P0_06, P0_07, P0_08, P0_09
+
+#define HAL_IDLETASK 1
+void HAL_idletask();
+
+#define PLATFORM_M997_SUPPORT
+void flashFirmware(int16_t value);
+
+/**
+ * set_pwm_frequency
+ *  Set the frequency of the timer corresponding to the provided pin
+ *  All Hardware PWM pins run at the same frequency and all
+ *  Software PWM pins run at the same frequency
+ */
+void set_pwm_frequency(const pin_t pin, int f_desired);
+
+/**
+ * set_pwm_duty
+ *  Set the PWM duty cycle of the provided pin to the provided value
+ *  Optionally allows inverting the duty cycle [default = false]
+ *  Optionally allows changing the maximum size of the provided value to enable finer PWM duty control [default = 255]
+ */
+void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size=255, const bool invert=false);
+
+// Reset source
+void HAL_clear_reset_source(void);
+uint8_t HAL_get_reset_source(void);
--- a/Marlin/src/HAL/LPC1768/HAL_SPI.cpp
+++ b/Marlin/src/HAL/LPC1768/HAL_SPI.cpp
@ -0,0 +1,240 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Software SPI functions originally from Arduino Sd2Card Library
+ * Copyright (c) 2009 by William Greiman
+ */
+
+/**
+ * For TARGET_LPC1768
+ */
+
+/**
+ * Hardware SPI and a software SPI implementations are included in this file.
+ * The hardware SPI runs faster and has higher throughput but is not compatible
+ * with some LCD interfaces/adapters.
+ *
+ * Control of the slave select pin(s) is handled by the calling routines.
+ *
+ * Some of the LCD interfaces/adapters result in the LCD SPI and the SD card
+ * SPI sharing pins. The SCK, MOSI & MISO pins can NOT be set/cleared with
+ * WRITE nor digitalWrite when the hardware SPI module within the LPC17xx is
+ * active.  If any of these pins are shared then the software SPI must be used.
+ *
+ * A more sophisticated hardware SPI can be found at the following link.  This
+ * implementation has not been fully debugged.
+ * https://github.com/MarlinFirmware/Marlin/tree/071c7a78f27078fd4aee9a3ef365fcf5e143531e
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../inc/MarlinConfig.h"
+#include <SPI.h>
+
+// ------------------------
+// Public functions
+// ------------------------
+#if ENABLED(LPC_SOFTWARE_SPI)
+
+  #include <SoftwareSPI.h>
+
+  // Software SPI
+
+  static uint8_t SPI_speed = 0;
+
+  static uint8_t spiTransfer(uint8_t b) {
+    return swSpiTransfer(b, SPI_speed, SCK_PIN, MISO_PIN, MOSI_PIN);
+  }
+
+  void spiBegin() {
+    swSpiBegin(SCK_PIN, MISO_PIN, MOSI_PIN);
+  }
+
+  void spiInit(uint8_t spiRate) {
+    SPI_speed = swSpiInit(spiRate, SCK_PIN, MOSI_PIN);
+  }
+
+  uint8_t spiRec() { return spiTransfer(0xFF); }
+
+  void spiRead(uint8_t*buf, uint16_t nbyte) {
+    for (int i = 0; i < nbyte; i++)
+      buf[i] = spiTransfer(0xFF);
+  }
+
+  void spiSend(uint8_t b) { (void)spiTransfer(b); }
+
+  void spiSend(const uint8_t* buf, size_t nbyte) {
+    for (uint16_t i = 0; i < nbyte; i++)
+      (void)spiTransfer(buf[i]);
+  }
+
+  void spiSendBlock(uint8_t token, const uint8_t* buf) {
+    (void)spiTransfer(token);
+    for (uint16_t i = 0; i < 512; i++)
+      (void)spiTransfer(buf[i]);
+  }
+
+#else
+
+  // Hardware SPI
+
+  #include <lpc17xx_pinsel.h>
+  #include <lpc17xx_ssp.h>
+  #include <lpc17xx_clkpwr.h>
+
+  // decide which HW SPI device to use
+  #ifndef LPC_HW_SPI_DEV
+    #if (SCK_PIN == P0_07 && MISO_PIN == P0_08 && MOSI_PIN == P0_09)
+      #define LPC_HW_SPI_DEV 1
+    #else
+      #if (SCK_PIN == P0_15 && MISO_PIN == P0_17 && MOSI_PIN == P0_18)
+        #define LPC_HW_SPI_DEV 0
+      #else
+        #error "Invalid pins selected for hardware SPI"
+      #endif
+    #endif
+  #endif
+  #if (LPC_HW_SPI_DEV == 0)
+    #define LPC_SSPn LPC_SSP0
+  #else
+    #define LPC_SSPn LPC_SSP1
+  #endif
+
+  void spiBegin() {  // setup SCK, MOSI & MISO pins for SSP0
+    PINSEL_CFG_Type PinCfg;  // data structure to hold init values
+    PinCfg.Funcnum = 2;
+    PinCfg.OpenDrain = 0;
+    PinCfg.Pinmode = 0;
+    PinCfg.Pinnum = LPC176x::pin_bit(SCK_PIN);
+    PinCfg.Portnum = LPC176x::pin_port(SCK_PIN);
+    PINSEL_ConfigPin(&PinCfg);
+    SET_OUTPUT(SCK_PIN);
+
+    PinCfg.Pinnum = LPC176x::pin_bit(MISO_PIN);
+    PinCfg.Portnum = LPC176x::pin_port(MISO_PIN);
+    PINSEL_ConfigPin(&PinCfg);
+    SET_INPUT(MISO_PIN);
+
+    PinCfg.Pinnum = LPC176x::pin_bit(MOSI_PIN);
+    PinCfg.Portnum = LPC176x::pin_port(MOSI_PIN);
+    PINSEL_ConfigPin(&PinCfg);
+    SET_OUTPUT(MOSI_PIN);
+    // divide PCLK by 2 for SSP0
+    CLKPWR_SetPCLKDiv(LPC_HW_SPI_DEV == 0 ? CLKPWR_PCLKSEL_SSP0 : CLKPWR_PCLKSEL_SSP1, CLKPWR_PCLKSEL_CCLK_DIV_2);
+    spiInit(0);
+    SSP_Cmd(LPC_SSPn, ENABLE);  // start SSP running
+  }
+
+  void spiInit(uint8_t spiRate) {
+    // table to convert Marlin spiRates (0-5 plus default) into bit rates
+    uint32_t Marlin_speed[7]; // CPSR is always 2
+    Marlin_speed[0] = 8333333; //(SCR:  2)  desired: 8,000,000  actual: 8,333,333  +4.2%  SPI_FULL_SPEED
+    Marlin_speed[1] = 4166667; //(SCR:  5)  desired: 4,000,000  actual: 4,166,667  +4.2%  SPI_HALF_SPEED
+    Marlin_speed[2] = 2083333; //(SCR: 11)  desired: 2,000,000  actual: 2,083,333  +4.2%  SPI_QUARTER_SPEED
+    Marlin_speed[3] = 1000000; //(SCR: 24)  desired: 1,000,000  actual: 1,000,000         SPI_EIGHTH_SPEED
+    Marlin_speed[4] =  500000; //(SCR: 49)  desired:   500,000  actual:   500,000         SPI_SPEED_5
+    Marlin_speed[5] =  250000; //(SCR: 99)  desired:   250,000  actual:   250,000         SPI_SPEED_6
+    Marlin_speed[6] =  125000; //(SCR:199)  desired:   125,000  actual:   125,000         Default from HAL.h
+    // setup for SPI mode
+    SSP_CFG_Type HW_SPI_init; // data structure to hold init values
+    SSP_ConfigStructInit(&HW_SPI_init);  // set values for SPI mode
+    HW_SPI_init.ClockRate = Marlin_speed[_MIN(spiRate, 6)]; // put in the specified bit rate
+    HW_SPI_init.Mode |= SSP_CR1_SSP_EN;
+    SSP_Init(LPC_SSPn, &HW_SPI_init);  // puts the values into the proper bits in the SSP0 registers
+  }
+
+  static uint8_t doio(uint8_t b) {
+    /* send and receive a single byte */
+    SSP_SendData(LPC_SSPn, b & 0x00FF);
+    while (SSP_GetStatus(LPC_SSPn, SSP_STAT_BUSY));  // wait for it to finish
+    return SSP_ReceiveData(LPC_SSPn) & 0x00FF;
+  }
+
+  void spiSend(uint8_t b) { doio(b); }
+
+  void spiSend(const uint8_t* buf, size_t nbyte) {
+    for (uint16_t i = 0; i < nbyte; i++) doio(buf[i]);
+  }
+
+  void spiSend(uint32_t chan, byte b) {
+  }
+
+  void spiSend(uint32_t chan, const uint8_t* buf, size_t nbyte) {
+  }
+
+  // Read single byte from SPI
+  uint8_t spiRec() { return doio(0xFF); }
+
+  uint8_t spiRec(uint32_t chan) { return 0; }
+
+  // Read from SPI into buffer
+  void spiRead(uint8_t *buf, uint16_t nbyte) {
+    for (uint16_t i = 0; i < nbyte; i++) buf[i] = doio(0xFF);
+  }
+
+  static uint8_t spiTransfer(uint8_t b) {
+    return doio(b);
+  }
+
+  // Write from buffer to SPI
+  void spiSendBlock(uint8_t token, const uint8_t* buf) {
+   (void)spiTransfer(token);
+    for (uint16_t i = 0; i < 512; i++)
+      (void)spiTransfer(buf[i]);
+  }
+
+  /** Begin SPI transaction, set clock, bit order, data mode */
+  void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode) {
+    // TODO: to be implemented
+
+  }
+
+#endif // ENABLED(LPC_SOFTWARE_SPI)
+
+void SPIClass::begin() { spiBegin(); }
+
+void SPIClass::beginTransaction(SPISettings cfg) {
+  uint8_t spiRate;
+  switch (cfg.spiRate()) {
+    case 8000000: spiRate = 0; break;
+    case 4000000: spiRate = 1; break;
+    case 2000000: spiRate = 2; break;
+    case 1000000: spiRate = 3; break;
+    case  500000: spiRate = 4; break;
+    case  250000: spiRate = 5; break;
+    case  125000: spiRate = 6; break;
+    default: spiRate = 2; break;
+  }
+  spiInit(spiRate);
+}
+
+uint8_t SPIClass::transfer(const uint8_t B) { return spiTransfer(B); }
+
+uint16_t SPIClass::transfer16(const uint16_t data) {
+  return (transfer((data >> 8) & 0xFF) << 8)
+       | (transfer(data & 0xFF) & 0xFF);
+}
+
+SPIClass SPI;
+
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/MarlinSerial.cpp
+++ b/Marlin/src/HAL/LPC1768/MarlinSerial.cpp
@ -0,0 +1,56 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../inc/MarlinConfigPre.h"
+#include "MarlinSerial.h"
+
+#if (defined(SERIAL_PORT) && SERIAL_PORT == 0) || (defined(SERIAL_PORT_2) && SERIAL_PORT_2 == 0) || (defined(DGUS_SERIAL_PORT) && DGUS_SERIAL_PORT == 0)
+  MarlinSerial MSerial(LPC_UART0);
+  extern "C" void UART0_IRQHandler() {
+    MSerial.IRQHandler();
+  }
+#endif
+
+#if SERIAL_PORT == 1 || SERIAL_PORT_2 == 1 || DGUS_SERIAL_PORT == 1
+  MarlinSerial MSerial1((LPC_UART_TypeDef *) LPC_UART1);
+  extern "C" void UART1_IRQHandler() {
+    MSerial1.IRQHandler();
+  }
+#endif
+
+#if SERIAL_PORT == 2 || SERIAL_PORT_2 == 2 || DGUS_SERIAL_PORT == 2
+  MarlinSerial MSerial2(LPC_UART2);
+  extern "C" void UART2_IRQHandler() {
+    MSerial2.IRQHandler();
+  }
+#endif
+
+#if SERIAL_PORT == 3 || SERIAL_PORT_2 == 3 || DGUS_SERIAL_PORT == 3
+  MarlinSerial MSerial3(LPC_UART3);
+  extern "C" void UART3_IRQHandler() {
+    MSerial3.IRQHandler();
+  }
+#endif
+
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/MarlinSerial.h
+++ b/Marlin/src/HAL/LPC1768/MarlinSerial.h
@ -0,0 +1,67 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include <HardwareSerial.h>
+#include <WString.h>
+
+#include "../../inc/MarlinConfigPre.h"
+#if ENABLED(EMERGENCY_PARSER)
+  #include "../../feature/e_parser.h"
+#endif
+
+#ifndef SERIAL_PORT
+  #define SERIAL_PORT 0
+#endif
+#ifndef RX_BUFFER_SIZE
+  #define RX_BUFFER_SIZE 128
+#endif
+#ifndef TX_BUFFER_SIZE
+  #define TX_BUFFER_SIZE 32
+#endif
+
+class MarlinSerial : public HardwareSerial<RX_BUFFER_SIZE, TX_BUFFER_SIZE> {
+public:
+  MarlinSerial(LPC_UART_TypeDef *UARTx) :
+    HardwareSerial<RX_BUFFER_SIZE, TX_BUFFER_SIZE>(UARTx)
+    #if ENABLED(EMERGENCY_PARSER)
+       , emergency_state(EmergencyParser::State::EP_RESET)
+    #endif
+    {
+    }
+
+  void end() {}
+
+  #if ENABLED(EMERGENCY_PARSER)
+    bool recv_callback(const char c) override {
+      emergency_parser.update(emergency_state, c);
+      return true; // do not discard character
+    }
+
+    EmergencyParser::State emergency_state;
+  #endif
+};
+
+extern MarlinSerial MSerial;
+extern MarlinSerial MSerial1;
+extern MarlinSerial MSerial2;
+extern MarlinSerial MSerial3;
--- a/Marlin/src/HAL/LPC1768/Servo.h
+++ b/Marlin/src/HAL/LPC1768/Servo.h
@ -0,0 +1,71 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * servo.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
+ * Copyright (c) 2009 Michael Margolis.  All right reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#pragma once
+
+/**
+ * Based on "servo.h - Interrupt driven Servo library for Arduino using 16 bit timers -
+ *           Version 2 Copyright (c) 2009 Michael Margolis.  All right reserved.
+ *
+ * The only modification was to update/delete macros to match the LPC176x.
+ *
+ */
+
+#include <Servo.h>
+
+class libServo: public Servo {
+  public:
+  void move(const int value) {
+    constexpr uint16_t servo_delay[] = SERVO_DELAY;
+    static_assert(COUNT(servo_delay) == NUM_SERVOS, "SERVO_DELAY must be an array NUM_SERVOS long.");
+
+    if (attach(servo_info[servoIndex].Pin.nbr) >= 0) {    // try to reattach
+      write(value);
+      safe_delay(servo_delay[servoIndex]); // delay to allow servo to reach position
+      #if ENABLED(DEACTIVATE_SERVOS_AFTER_MOVE)
+        detach();
+      #endif
+    }
+
+  }
+};
+
+#define HAL_SERVO_LIB libServo
--- a/Marlin/src/HAL/LPC1768/endstop_interrupts.h
+++ b/Marlin/src/HAL/LPC1768/endstop_interrupts.h
@ -0,0 +1,125 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * Endstop Interrupts
+ *
+ * Without endstop interrupts the endstop pins must be polled continually in
+ * the temperature-ISR via endstops.update(), most of the time finding no change.
+ * With this feature endstops.update() is called only when we know that at
+ * least one endstop has changed state, saving valuable CPU cycles.
+ *
+ * This feature only works when all used endstop pins can generate an 'external interrupt'.
+ *
+ * Test whether pins issue interrupts on your board by flashing 'pin_interrupt_test.ino'.
+ * (Located in Marlin/buildroot/share/pin_interrupt_test/pin_interrupt_test.ino)
+ */
+
+#include "../../module/endstops.h"
+
+// One ISR for all EXT-Interrupts
+void endstop_ISR() { endstops.update(); }
+
+void setup_endstop_interrupts() {
+  #define _ATTACH(P) attachInterrupt(digitalPinToInterrupt(P), endstop_ISR, CHANGE)
+  #define LPC1768_PIN_INTERRUPT_M(pin) ((pin >> 0x5 & 0x7) == 0 || (pin >> 0x5 & 0x7) == 2)
+
+  #if HAS_X_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(X_MAX_PIN)
+      #error "X_MAX_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(X_MAX_PIN);
+  #endif
+  #if HAS_X_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(X_MIN_PIN)
+      #error "X_MIN_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(X_MIN_PIN);
+  #endif
+  #if HAS_Y_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(Y_MAX_PIN)
+      #error "Y_MAX_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(Y_MAX_PIN);
+  #endif
+  #if HAS_Y_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(Y_MIN_PIN)
+      #error "Y_MIN_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(Y_MIN_PIN);
+  #endif
+  #if HAS_Z_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(Z_MAX_PIN)
+      #error "Z_MAX_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(Z_MAX_PIN);
+  #endif
+  #if HAS_Z_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(Z_MIN_PIN)
+      #error "Z_MIN_PIN is not INTERRUPT-capable."
+    #endif
+     _ATTACH(Z_MIN_PIN);
+  #endif
+  #if HAS_Z2_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(Z2_MAX_PIN)
+      #error "Z2_MAX_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(Z2_MAX_PIN);
+  #endif
+  #if HAS_Z2_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(Z2_MIN_PIN)
+      #error "Z2_MIN_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(Z2_MIN_PIN);
+  #endif
+  #if HAS_Z3_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(Z3_MAX_PIN)
+      #error "Z3_MIN_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(Z3_MAX_PIN);
+  #endif
+  #if HAS_Z3_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(Z3_MIN_PIN)
+      #error "Z3_MIN_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(Z3_MIN_PIN);
+  #endif
+  #if HAS_Z4_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(Z4_MAX_PIN)
+      #error "Z4_MIN_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(Z4_MAX_PIN);
+  #endif
+  #if HAS_Z4_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(Z4_MIN_PIN)
+      #error "Z4_MIN_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(Z4_MIN_PIN);
+  #endif
+  #if HAS_Z_MIN_PROBE_PIN
+    #if !LPC1768_PIN_INTERRUPT_M(Z_MIN_PROBE_PIN)
+      #error "Z_MIN_PROBE_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(Z_MIN_PROBE_PIN);
+  #endif
+}
--- a/Marlin/src/HAL/LPC1768/fast_pwm.cpp
+++ b/Marlin/src/HAL/LPC1768/fast_pwm.cpp
@ -0,0 +1,40 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../inc/MarlinConfigPre.h"
+
+#if ENABLED(FAST_PWM_FAN) || SPINDLE_LASER_PWM
+
+#include <pwm.h>
+
+void set_pwm_frequency(const pin_t pin, int f_desired) {
+  LPC176x::pwm_set_frequency(pin, f_desired);
+}
+
+void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size/*=255*/, const bool invert/*=false*/) {
+  LPC176x::pwm_write_ratio(pin, invert ? 1.0f - (float)v / v_size : (float)v / v_size);
+}
+
+#endif // FAST_PWM_FAN || SPINDLE_LASER_PWM
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/fastio.h
+++ b/Marlin/src/HAL/LPC1768/fastio.h
@ -0,0 +1,119 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * Fast I/O Routines for LPC1768/9
+ * Use direct port manipulation to save scads of processor time.
+ * Contributed by Triffid_Hunter and modified by Kliment, thinkyhead, Bob-the-Kuhn, et.al.
+ */
+
+/**
+ * Description: Fast IO functions LPC1768
+ *
+ * For TARGET LPC1768
+ */
+
+#include "../shared/Marduino.h"
+
+#define PWM_PIN(P)            true // all pins are PWM capable
+
+#define LPC_PIN(pin)          LPC176x::gpio_pin(pin)
+#define LPC_GPIO(port)        LPC176x::gpio_port(port)
+
+#define SET_DIR_INPUT(IO)     LPC176x::gpio_set_input(IO)
+#define SET_DIR_OUTPUT(IO)    LPC176x::gpio_set_output(IO)
+
+#define SET_MODE(IO, mode)    pinMode(IO, mode)
+
+#define WRITE_PIN_SET(IO)     LPC176x::gpio_set(IO)
+#define WRITE_PIN_CLR(IO)     LPC176x::gpio_clear(IO)
+
+#define READ_PIN(IO)          LPC176x::gpio_get(IO)
+#define WRITE_PIN(IO,V)       LPC176x::gpio_set(IO, V)
+
+/**
+ * Magic I/O routines
+ *
+ * Now you can simply SET_OUTPUT(STEP); WRITE(STEP, HIGH); WRITE(STEP, LOW);
+ *
+ * Why double up on these macros? see http://gcc.gnu.org/onlinedocs/cpp/Stringification.html
+ */
+
+/// Read a pin
+#define _READ(IO)             READ_PIN(IO)
+
+/// Write to a pin
+#define _WRITE(IO,V)          WRITE_PIN(IO,V)
+
+/// toggle a pin
+#define _TOGGLE(IO)           _WRITE(IO, !READ(IO))
+
+/// set pin as input
+#define _SET_INPUT(IO)        SET_DIR_INPUT(IO)
+
+/// set pin as output
+#define _SET_OUTPUT(IO)       SET_DIR_OUTPUT(IO)
+
+/// set pin as input with pullup mode
+#define _PULLUP(IO,V)         pinMode(IO, (V) ? INPUT_PULLUP : INPUT)
+
+/// set pin as input with pulldown mode
+#define _PULLDOWN(IO,V)       pinMode(IO, (V) ? INPUT_PULLDOWN : INPUT)
+
+/// check if pin is an input
+#define _IS_INPUT(IO)         (!LPC176x::gpio_get_dir(IO))
+
+/// check if pin is an output
+#define _IS_OUTPUT(IO)        (LPC176x::gpio_get_dir(IO))
+
+/// Read a pin wrapper
+#define READ(IO)              _READ(IO)
+
+/// Write to a pin wrapper
+#define WRITE(IO,V)           _WRITE(IO,V)
+
+/// toggle a pin wrapper
+#define TOGGLE(IO)            _TOGGLE(IO)
+
+/// set pin as input wrapper
+#define SET_INPUT(IO)         _SET_INPUT(IO)
+/// set pin as input with pullup wrapper
+#define SET_INPUT_PULLUP(IO)  do{ _SET_INPUT(IO); _PULLUP(IO, HIGH); }while(0)
+/// set pin as input with pulldown wrapper
+#define SET_INPUT_PULLDOWN(IO) do{ _SET_INPUT(IO); _PULLDOWN(IO, HIGH); }while(0)
+/// set pin as output wrapper  -  reads the pin and sets the output to that value
+#define SET_OUTPUT(IO)        do{ _WRITE(IO, _READ(IO)); _SET_OUTPUT(IO); }while(0)
+// set pin as PWM
+#define SET_PWM(IO)           SET_OUTPUT(IO)
+
+/// check if pin is an input wrapper
+#define IS_INPUT(IO)          _IS_INPUT(IO)
+/// check if pin is an output wrapper
+#define IS_OUTPUT(IO)         _IS_OUTPUT(IO)
+
+// Shorthand
+#define OUT_WRITE(IO,V)       do{ SET_OUTPUT(IO); WRITE(IO,V); }while(0)
+
+// digitalRead/Write wrappers
+#define extDigitalRead(IO)    digitalRead(IO)
+#define extDigitalWrite(IO,V) digitalWrite(IO,V)
--- a/Marlin/src/HAL/LPC1768/inc/Conditionals_LCD.h
+++ b/Marlin/src/HAL/LPC1768/inc/Conditionals_LCD.h
@ -0,0 +1,22 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
--- a/Marlin/src/HAL/LPC1768/inc/Conditionals_adv.h
+++ b/Marlin/src/HAL/LPC1768/inc/Conditionals_adv.h
@ -0,0 +1,22 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
--- a/Marlin/src/HAL/LPC1768/inc/Conditionals_post.h
+++ b/Marlin/src/HAL/LPC1768/inc/Conditionals_post.h
@ -0,0 +1,30 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#if ENABLED(EEPROM_SETTINGS)
+  #undef USE_REAL_EEPROM
+  #define USE_EMULATED_EEPROM 1
+  #if DISABLED(FLASH_EEPROM_EMULATION)
+    #define SDCARD_EEPROM_EMULATION 1
+  #endif
+#endif
--- a/Marlin/src/HAL/LPC1768/inc/SanityCheck.h
+++ b/Marlin/src/HAL/LPC1768/inc/SanityCheck.h
@ -0,0 +1,253 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#if PIO_PLATFORM_VERSION < 1001
+  #error "nxplpc-arduino-lpc176x package is out of date, Please update the PlatformIO platforms, frameworks and libraries. You may need to remove the platform and let it reinstall automatically."
+#endif
+#if PIO_FRAMEWORK_VERSION < 2002
+  #error "framework-arduino-lpc176x package is out of date, Please update the PlatformIO platforms, frameworks and libraries."
+#endif
+
+/**
+ * Detect an old pins file by checking for old ADC pins values.
+ */
+#define _OLD_TEMP_PIN(P) PIN_EXISTS(P) && _CAT(P,_PIN) <= 7 && _CAT(P,_PIN) != 2 && _CAT(P,_PIN) != 3
+#if _OLD_TEMP_PIN(TEMP_BED)
+  #error "TEMP_BED_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_0)
+  #error "TEMP_0_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_1)
+  #error "TEMP_1_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_2)
+  #error "TEMP_2_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_3)
+  #error "TEMP_3_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_4)
+  #error "TEMP_4_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_5)
+  #error "TEMP_5_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_6)
+  #error "TEMP_6_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_7)
+  #error "TEMP_7_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#endif
+#undef _OLD_TEMP_PIN
+
+/**
+ * Because PWM hardware channels all share the same frequency, along with the
+ * fallback software channels, FAST_PWM_FAN is incompatible with Servos.
+ */
+static_assert(!(NUM_SERVOS && ENABLED(FAST_PWM_FAN)), "BLTOUCH and Servos are incompatible with FAST_PWM_FAN on LPC176x boards.");
+
+/**
+ * Test LPC176x-specific configuration values for errors at compile-time.
+ */
+
+//#if ENABLED(SPINDLE_LASER_PWM) && !(SPINDLE_LASER_PWM_PIN == 4 || SPINDLE_LASER_PWM_PIN == 6 || SPINDLE_LASER_PWM_PIN == 11)
+//  #error "SPINDLE_LASER_PWM_PIN must use SERVO0, SERVO1 or SERVO3 connector"
+//#endif
+
+#if MB(RAMPS_14_RE_ARM_EFB, RAMPS_14_RE_ARM_EEB, RAMPS_14_RE_ARM_EFF, RAMPS_14_RE_ARM_EEF, RAMPS_14_RE_ARM_SF)
+  #if ENABLED(REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER) && HAS_DRIVER(TMC2130) && DISABLED(TMC_USE_SW_SPI)
+    #error "Re-ARM with REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER and TMC2130 requires TMC_USE_SW_SPI."
+  #endif
+#endif
+
+static_assert(DISABLED(BAUD_RATE_GCODE), "BAUD_RATE_GCODE is not yet supported on LPC176x.");
+
+/**
+ * Flag any serial port conflicts
+ *
+ *   Port  |  TX   |  RX   |
+ *    ---  |  ---  |  ---  |
+ * Serial  | P0_02 | P0_03 |
+ * Serial1 | P0_15 | P0_16 |
+ * Serial2 | P0_10 | P0_11 |
+ * Serial3 | P0_00 | P0_01 |
+ */
+#if (defined(SERIAL_PORT) && SERIAL_PORT == 0) || (defined(SERIAL_PORT_2) && SERIAL_PORT_2 == 0) || (defined(DGUS_SERIAL_PORT) && DGUS_SERIAL_PORT == 0)
+  #define IS_TX0(P) (P == P0_02)
+  #define IS_RX0(P) (P == P0_03)
+  #if IS_TX0(TMC_SW_MISO) || IS_RX0(TMC_SW_MOSI)
+    #error "Serial port pins (0) conflict with Trinamic SPI pins!"
+  #elif ENABLED(MK2_MULTIPLEXER) && (IS_TX0(E_MUX1_PIN) || IS_RX0(E_MUX0_PIN))
+    #error "Serial port pins (0) conflict with MK2 multiplexer pins!"
+  #elif (AXIS_HAS_SPI(X) && IS_TX0(X_CS_PIN)) || (AXIS_HAS_SPI(Y) && IS_RX0(Y_CS_PIN))
+    #error "Serial port pins (0) conflict with X/Y axis SPI pins!"
+  #endif
+  #undef IS_TX0
+  #undef IS_RX0
+#endif
+
+#if SERIAL_PORT == 1 || SERIAL_PORT_2 == 1 || DGUS_SERIAL_PORT == 1
+  #define IS_TX1(P) (P == P0_15)
+  #define IS_RX1(P) (P == P0_16)
+  #if IS_TX1(TMC_SW_SCK)
+    #error "Serial port pins (1) conflict with other pins!"
+  #elif HAS_SPI_LCD
+    #if IS_TX1(BTN_EN2) || IS_RX1(BTN_EN1)
+      #error "Serial port pins (1) conflict with Encoder Buttons!"
+    #elif IS_TX1(SCK_PIN) || IS_TX1(LCD_PINS_D4) || IS_TX1(DOGLCD_SCK) || IS_TX1(LCD_RESET_PIN) || IS_TX1(LCD_PINS_RS) || IS_TX1(SHIFT_CLK) \
+      || IS_RX1(LCD_SDSS) || IS_RX1(LCD_PINS_RS) || IS_RX1(MISO_PIN) || IS_RX1(DOGLCD_A0) || IS_RX1(SS_PIN) || IS_RX1(LCD_SDSS) || IS_RX1(DOGLCD_CS) || IS_RX1(LCD_RESET_PIN) || IS_RX1(LCD_BACKLIGHT_PIN)
+      #error "Serial port pins (1) conflict with LCD pins!"
+    #endif
+  #endif
+  #undef IS_TX1
+  #undef IS_RX1
+#endif
+
+#if SERIAL_PORT == 2 || SERIAL_PORT_2 == 2 || DGUS_SERIAL_PORT == 2
+  #define IS_TX2(P) (P == P0_10)
+  #define IS_RX2(P) (P == P0_11)
+  #if  IS_TX2(X2_ENABLE_PIN) || IS_RX2(X2_DIR_PIN) || IS_RX2(X2_STEP_PIN) || (AXIS_HAS_SPI(X2) && IS_TX2(X2_CS_PIN))
+    #error "Serial port pins (2) conflict with X2 pins!"
+  #elif IS_TX2(Y2_ENABLE_PIN) || IS_RX2(Y2_DIR_PIN) || IS_RX2(Y2_STEP_PIN) || (AXIS_HAS_SPI(Y2) && IS_TX2(Y2_CS_PIN))
+    #error "Serial port pins (2) conflict with Y2 pins!"
+  #elif IS_TX2(Z2_ENABLE_PIN) || IS_RX2(Z2_DIR_PIN) || IS_RX2(Z2_STEP_PIN) || (AXIS_HAS_SPI(Z2) && IS_TX2(Z2_CS_PIN))
+    #error "Serial port pins (2) conflict with Z2 pins!"
+  #elif IS_TX2(Z3_ENABLE_PIN) || IS_RX2(Z3_DIR_PIN) || IS_RX2(Z3_STEP_PIN) || (AXIS_HAS_SPI(Z3) && IS_TX2(Z3_CS_PIN))
+    #error "Serial port pins (2) conflict with Z3 pins!"
+  #elif IS_TX2(Z4_ENABLE_PIN) || IS_RX2(Z4_DIR_PIN) || IS_RX2(Z4_STEP_PIN) || (AXIS_HAS_SPI(Z4) && IS_TX2(Z4_CS_PIN))
+    #error "Serial port pins (2) conflict with Z4 pins!"
+  #elif IS_RX2(X_DIR_PIN) || IS_RX2(Y_DIR_PIN)
+    #error "Serial port pins (2) conflict with other pins!"
+  #elif Y_HOME_DIR < 0 && IS_TX2(Y_STOP_PIN)
+    #error "Serial port pins (2) conflict with Y endstop pin!"
+  #elif HAS_CUSTOM_PROBE_PIN && IS_TX2(Z_MIN_PROBE_PIN)
+    #error "Serial port pins (2) conflict with probe pin!"
+  #elif IS_TX2(X_ENABLE_PIN) || IS_RX2(X_DIR_PIN) || IS_TX2(Y_ENABLE_PIN) || IS_RX2(Y_DIR_PIN)
+    #error "Serial port pins (2) conflict with X/Y stepper pins!"
+  #elif EXTRUDERS > 1 && (IS_TX2(E1_ENABLE_PIN) || (AXIS_HAS_SPI(E1) && IS_TX2(E1_CS_PIN)))
+    #error "Serial port pins (2) conflict with E1 stepper pins!"
+  #elif EXTRUDERS && (IS_RX2(E0_DIR_PIN) || IS_RX2(E0_STEP_PIN))
+    #error "Serial port pins (2) conflict with E stepper pins!"
+  #endif
+  #undef IS_TX2
+  #undef IS_RX2
+#endif
+
+#if SERIAL_PORT == 3 || SERIAL_PORT_2 == 3 || DGUS_SERIAL_PORT == 3
+  #define PIN_IS_TX3(P) (PIN_EXISTS(P) && P##_PIN == P0_00)
+  #define PIN_IS_RX3(P) (P##_PIN == P0_01)
+  #if PIN_IS_TX3(X_MIN) || PIN_IS_RX3(X_MAX)
+    #error "Serial port pins (3) conflict with X endstop pins!"
+  #elif PIN_IS_TX3(Y_SERIAL_TX) || PIN_IS_TX3(Y_SERIAL_RX) \
+    ||  PIN_IS_RX3(X_SERIAL_TX) || PIN_IS_RX3(X_SERIAL_RX)
+    #error "Serial port pins (3) conflict with X/Y axis UART pins!"
+  #elif PIN_IS_TX3(X2_DIR) || PIN_IS_RX3(X2_STEP)
+    #error "Serial port pins (3) conflict with X2 pins!"
+  #elif PIN_IS_TX3(Y2_DIR) || PIN_IS_RX3(Y2_STEP)
+    #error "Serial port pins (3) conflict with Y2 pins!"
+  #elif PIN_IS_TX3(Z2_DIR) || PIN_IS_RX3(Z2_STEP)
+    #error "Serial port pins (3) conflict with Z2 pins!"
+  #elif PIN_IS_TX3(Z3_DIR) || PIN_IS_RX3(Z3_STEP)
+    #error "Serial port pins (3) conflict with Z3 pins!"
+  #elif PIN_IS_TX3(Z4_DIR) || PIN_IS_RX3(Z4_STEP)
+    #error "Serial port pins (3) conflict with Z4 pins!"
+  #elif EXTRUDERS > 1 && (PIN_IS_TX3(E1_DIR) || PIN_IS_RX3(E1_STEP))
+    #error "Serial port pins (3) conflict with E1 pins!"
+  #endif
+  #undef PIN_IS_TX3
+  #undef PIN_IS_RX3
+#endif
+
+//
+// Flag any i2c pin conflicts
+//
+#if ANY(DIGIPOT_I2C, DIGIPOT_MCP4018, DAC_STEPPER_CURRENT, EXPERIMENTAL_I2CBUS, I2C_POSITION_ENCODERS, PCA9632, I2C_EEPROM)
+  #define USEDI2CDEV_M 1  // <Arduino>/Wire.cpp
+
+  #if USEDI2CDEV_M == 0         // P0_27 [D57] (AUX-1) .......... P0_28 [D58] (AUX-1)
+    #define PIN_IS_SDA0(P) (P##_PIN == P0_27)
+    #define IS_SCL0(P)     (P == P0_28)
+    #if ENABLED(SDSUPPORT) && PIN_IS_SDA0(SD_DETECT)
+      #error "SDA0 overlaps with SD_DETECT_PIN!"
+    #elif PIN_IS_SDA0(E0_AUTO_FAN)
+      #error "SDA0 overlaps with E0_AUTO_FAN_PIN!"
+    #elif PIN_IS_SDA0(BEEPER)
+      #error "SDA0 overlaps with BEEPER_PIN!"
+    #elif IS_SCL0(BTN_ENC)
+      #error "SCL0 overlaps with Encoder Button!"
+    #elif IS_SCL0(SS_PIN)
+      #error "SCL0 overlaps with SS_PIN!"
+    #elif IS_SCL0(LCD_SDSS)
+      #error "SCL0 overlaps with LCD_SDSS!"
+    #endif
+    #undef PIN_IS_SDA0
+    #undef IS_SCL0
+  #elif USEDI2CDEV_M == 1       // P0_00 [D20] (SCA) ............ P0_01 [D21] (SCL)
+    #define PIN_IS_SDA1(P) (PIN_EXISTS(P) && P##_PIN == P0_00)
+    #define PIN_IS_SCL1(P) (P##_PIN == P0_01)
+    #if PIN_IS_SDA1(X_MIN) || PIN_IS_SCL1(X_MAX)
+      #error "One or more i2c (1) pins overlaps with X endstop pins! Disable i2c peripherals."
+    #elif PIN_IS_SDA1(X2_DIR) || PIN_IS_SCL1(X2_STEP)
+      #error "One or more i2c (1) pins overlaps with X2 pins! Disable i2c peripherals."
+    #elif PIN_IS_SDA1(Y2_DIR) || PIN_IS_SCL1(Y2_STEP)
+      #error "One or more i2c (1) pins overlaps with Y2 pins! Disable i2c peripherals."
+    #elif PIN_IS_SDA1(Z2_DIR) || PIN_IS_SCL1(Z2_STEP)
+      #error "One or more i2c (1) pins overlaps with Z2 pins! Disable i2c peripherals."
+    #elif PIN_IS_SDA1(Z3_DIR) || PIN_IS_SCL1(Z3_STEP)
+      #error "One or more i2c (1) pins overlaps with Z3 pins! Disable i2c peripherals."
+    #elif PIN_IS_SDA1(Z4_DIR) || PIN_IS_SCL1(Z4_STEP)
+      #error "One or more i2c (1) pins overlaps with Z4 pins! Disable i2c peripherals."
+    #elif EXTRUDERS > 1 && (PIN_IS_SDA1(E1_DIR) || PIN_IS_SCL1(E1_STEP))
+      #error "One or more i2c (1) pins overlaps with E1 pins! Disable i2c peripherals."
+    #endif
+    #undef PIN_IS_SDA1
+    #undef PIN_IS_SCL1
+  #elif USEDI2CDEV_M == 2     // P0_10 [D38] (X_ENABLE_PIN) ... P0_11 [D55] (X_DIR_PIN)
+    #define PIN_IS_SDA2(P) (P##_PIN == P0_10)
+    #define PIN_IS_SCL2(P) (P##_PIN == P0_11)
+    #if PIN_IS_SDA2(Y_STOP)
+      #error "i2c SDA2 overlaps with Y endstop pin!"
+    #elif HAS_CUSTOM_PROBE_PIN && PIN_IS_SDA2(Z_MIN_PROBE)
+      #error "i2c SDA2 overlaps with Z probe pin!"
+    #elif PIN_IS_SDA2(X_ENABLE) || PIN_IS_SDA2(Y_ENABLE)
+      #error "i2c SDA2 overlaps with X/Y ENABLE pin!"
+    #elif AXIS_HAS_SPI(X) && PIN_IS_SDA2(X_CS)
+      #error "i2c SDA2 overlaps with X CS pin!"
+    #elif PIN_IS_SDA2(X2_ENABLE)
+      #error "i2c SDA2 overlaps with X2 enable pin! Disable i2c peripherals."
+    #elif PIN_IS_SDA2(Y2_ENABLE)
+      #error "i2c SDA2 overlaps with Y2 enable pin! Disable i2c peripherals."
+    #elif PIN_IS_SDA2(Z2_ENABLE)
+      #error "i2c SDA2 overlaps with Z2 enable pin! Disable i2c peripherals."
+    #elif PIN_IS_SDA2(Z3_ENABLE)
+      #error "i2c SDA2 overlaps with Z3 enable pin! Disable i2c peripherals."
+    #elif PIN_IS_SDA2(Z4_ENABLE)
+      #error "i2c SDA2 overlaps with Z4 enable pin! Disable i2c peripherals."
+    #elif EXTRUDERS > 1 && PIN_IS_SDA2(E1_ENABLE)
+      #error "i2c SDA2 overlaps with E1 enable pin! Disable i2c peripherals."
+    #elif EXTRUDERS > 1 && AXIS_HAS_SPI(E1) && PIN_IS_SDA2(E1_CS)
+      #error "i2c SDA2 overlaps with E1 CS pin! Disable i2c peripherals."
+    #elif EXTRUDERS && (PIN_IS_SDA2(E0_STEP) || PIN_IS_SDA2(E0_DIR))
+      #error "i2c SCL2 overlaps with E0 STEP/DIR pin! Disable i2c peripherals."
+    #elif PIN_IS_SDA2(X_DIR) || PIN_IS_SDA2(Y_DIR)
+      #error "One or more i2c pins overlaps with X/Y DIR pin! Disable i2c peripherals."
+    #endif
+    #undef PIN_IS_SDA2
+    #undef PIN_IS_SCL2
+  #endif
+
+  #undef USEDI2CDEV_M
+#endif
--- a/Marlin/src/HAL/LPC1768/include/SPI.h
+++ b/Marlin/src/HAL/LPC1768/include/SPI.h
@ -0,0 +1,48 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../../shared/HAL_SPI.h"
+
+#include <stdint.h>
+
+#define MSBFIRST 1
+#define SPI_MODE3 0
+
+class SPISettings {
+  public:
+    SPISettings(uint32_t speed, int, int) : spi_speed(speed) {};
+    uint32_t spiRate() { return spi_speed; }
+  private:
+    uint32_t spi_speed;
+};
+
+class SPIClass {
+  public:
+    void begin();
+    void beginTransaction(SPISettings);
+    void endTransaction() {};
+    uint8_t transfer(uint8_t data);
+    uint16_t transfer16(uint16_t data);
+};
+
+extern SPIClass SPI;
--- a/Marlin/src/HAL/LPC1768/include/digipot_mcp4451_I2C_routines.c
+++ b/Marlin/src/HAL/LPC1768/include/digipot_mcp4451_I2C_routines.c
@ -0,0 +1,106 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * digipot_mcp4451_I2C_routines.c
+ * Adapted from https://www-users.cs.york.ac.uk/~pcc/MCP/HAPR-Course-web/CMSIS/examples/html/master_8c_source.html
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if MB(MKS_SBASE)
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+#include "digipot_mcp4451_I2C_routines.h"
+
+// These two routines are exact copies of the lpc17xx_i2c.c routines.  Couldn't link to
+// to the lpc17xx_i2c.c routines so had to copy them into this file & rename them.
+
+static uint32_t _I2C_Start(LPC_I2C_TypeDef *I2Cx) {
+  // Reset STA, STO, SI
+  I2Cx->I2CONCLR = I2C_I2CONCLR_SIC|I2C_I2CONCLR_STOC|I2C_I2CONCLR_STAC;
+
+  // Enter to Master Transmitter mode
+  I2Cx->I2CONSET = I2C_I2CONSET_STA;
+
+  // Wait for complete
+  while (!(I2Cx->I2CONSET & I2C_I2CONSET_SI));
+  I2Cx->I2CONCLR = I2C_I2CONCLR_STAC;
+  return (I2Cx->I2STAT & I2C_STAT_CODE_BITMASK);
+}
+
+static void _I2C_Stop(LPC_I2C_TypeDef *I2Cx) {
+  // Make sure start bit is not active
+  if (I2Cx->I2CONSET & I2C_I2CONSET_STA)
+    I2Cx->I2CONCLR = I2C_I2CONCLR_STAC;
+
+  I2Cx->I2CONSET = I2C_I2CONSET_STO|I2C_I2CONSET_AA;
+  I2Cx->I2CONCLR = I2C_I2CONCLR_SIC;
+}
+
+I2C_M_SETUP_Type transferMCfg;
+
+#define I2C_status (LPC_I2C1->I2STAT & I2C_STAT_CODE_BITMASK)
+
+uint8_t digipot_mcp4451_start(uint8_t sla) {  // send slave address and write bit
+  // Sometimes TX data ACK or NAK status is returned.  That mean the start state didn't
+  // happen which means only the value of the slave address was send.  Keep looping until
+  // the slave address and write bit are actually sent.
+  do {
+    _I2C_Stop(I2CDEV_M); // output stop state on I2C bus
+    _I2C_Start(I2CDEV_M); // output start state on I2C bus
+    while ((I2C_status != I2C_I2STAT_M_TX_START)
+        && (I2C_status != I2C_I2STAT_M_TX_RESTART)
+        && (I2C_status != I2C_I2STAT_M_TX_DAT_ACK)
+        && (I2C_status != I2C_I2STAT_M_TX_DAT_NACK));  //wait for start to be asserted
+
+    LPC_I2C1->I2CONCLR = I2C_I2CONCLR_STAC; // clear start state before tansmitting slave address
+    LPC_I2C1->I2DAT = (sla << 1) & I2C_I2DAT_BITMASK; // transmit slave address & write bit
+    LPC_I2C1->I2CONSET = I2C_I2CONSET_AA;
+    LPC_I2C1->I2CONCLR = I2C_I2CONCLR_SIC;
+    while ((I2C_status != I2C_I2STAT_M_TX_SLAW_ACK)
+        && (I2C_status != I2C_I2STAT_M_TX_SLAW_NACK)
+        && (I2C_status != I2C_I2STAT_M_TX_DAT_ACK)
+        && (I2C_status != I2C_I2STAT_M_TX_DAT_NACK)) { /* wait for slaw to finish */ }
+  } while ( (I2C_status == I2C_I2STAT_M_TX_DAT_ACK) || (I2C_status == I2C_I2STAT_M_TX_DAT_NACK));
+  return 1;
+}
+
+uint8_t digipot_mcp4451_send_byte(uint8_t data) {
+  LPC_I2C1->I2DAT = data & I2C_I2DAT_BITMASK; // transmit data
+  LPC_I2C1->I2CONSET = I2C_I2CONSET_AA;
+  LPC_I2C1->I2CONCLR = I2C_I2CONCLR_SIC;
+  while (I2C_status != I2C_I2STAT_M_TX_DAT_ACK && I2C_status != I2C_I2STAT_M_TX_DAT_NACK);  // wait for xmit to finish
+  return 1;
+}
+
+#ifdef __cplusplus
+  }
+#endif
+
+#endif // MB(MKS_SBASE)
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/include/digipot_mcp4451_I2C_routines.h
+++ b/Marlin/src/HAL/LPC1768/include/digipot_mcp4451_I2C_routines.h
@ -0,0 +1,43 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * digipot_mcp4451_I2C_routines.h
+ * Adapted from https://www-users.cs.york.ac.uk/~pcc/MCP/HAPR-Course-web/CMSIS/examples/html/master_8c_source.html
+ */
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+#include <lpc17xx_i2c.h>
+#include <lpc17xx_pinsel.h>
+#include <lpc17xx_libcfg_default.h>
+#include "i2c_util.h"
+
+uint8_t digipot_mcp4451_start(uint8_t sla);
+uint8_t digipot_mcp4451_send_byte(uint8_t data);
+
+#ifdef __cplusplus
+  }
+#endif
--- a/Marlin/src/HAL/LPC1768/include/i2c_util.c
+++ b/Marlin/src/HAL/LPC1768/include/i2c_util.c
@ -0,0 +1,70 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * HAL_LPC1768/include/i2c_util.c
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "i2c_util.h"
+
+#define U8G_I2C_OPT_FAST 16  // from u8g.h
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+void configure_i2c(const uint8_t clock_option) {
+  /**
+   * Init I2C pin connect
+   */
+  PINSEL_CFG_Type PinCfg;
+  PinCfg.OpenDrain = 0;
+  PinCfg.Pinmode = 0;
+  PinCfg.Portnum = 0;
+  #if I2C_MASTER_ID == 0
+    PinCfg.Funcnum = 1;
+    PinCfg.Pinnum = 27;     // SDA0 / D57  AUX-1 ... SCL0 / D58  AUX-1
+  #elif I2C_MASTER_ID == 1
+    PinCfg.Funcnum = 3;
+    PinCfg.Pinnum = 0;      // SDA1 / D20 SCA ... SCL1 / D21 SCL
+  #elif I2C_MASTER_ID == 2
+    PinCfg.Funcnum = 2;
+    PinCfg.Pinnum = 10;     // SDA2 / D38  X_ENABLE_PIN ... SCL2 / D55  X_DIR_PIN
+  #endif
+  PINSEL_ConfigPin(&PinCfg);
+  PinCfg.Pinnum += 1;
+  PINSEL_ConfigPin(&PinCfg);
+
+  // Initialize I2C peripheral
+  I2C_Init(I2CDEV_M, (clock_option & U8G_I2C_OPT_FAST) ? 400000: 100000);  // LCD data rates
+
+  // Enable Master I2C operation
+  I2C_Cmd(I2CDEV_M, I2C_MASTER_MODE, ENABLE);
+}
+
+#ifdef __cplusplus
+  }
+#endif
+
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/include/i2c_util.h
+++ b/Marlin/src/HAL/LPC1768/include/i2c_util.h
@ -0,0 +1,56 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * HAL_LPC1768/include/i2c_util.h
+ */
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#ifndef I2C_MASTER_ID
+  #define I2C_MASTER_ID 1
+#endif
+
+#if I2C_MASTER_ID == 0
+  #define I2CDEV_M LPC_I2C0
+#elif I2C_MASTER_ID == 1
+  #define I2CDEV_M LPC_I2C1
+#elif I2C_MASTER_ID == 2
+  #define I2CDEV_M LPC_I2C2
+#else
+  #error "Master I2C device not defined!"
+#endif
+
+#include <lpc17xx_i2c.h>
+#include <lpc17xx_pinsel.h>
+#include <lpc17xx_libcfg_default.h>
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+void configure_i2c(const uint8_t clock_option);
+
+#ifdef __cplusplus
+  }
+#endif
--- a/Marlin/src/HAL/LPC1768/main.cpp
+++ b/Marlin/src/HAL/LPC1768/main.cpp
@ -0,0 +1,162 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#ifdef TARGET_LPC1768
+
+#include <usb/usb.h>
+#include <usb/usbcfg.h>
+#include <usb/usbhw.h>
+#include <usb/usbcore.h>
+#include <usb/cdc.h>
+#include <usb/cdcuser.h>
+#include <usb/mscuser.h>
+#include <CDCSerial.h>
+#include <usb/mscuser.h>
+
+extern "C" {
+  #include <debug_frmwrk.h>
+}
+
+#include "../../sd/cardreader.h"
+#include "../../inc/MarlinConfig.h"
+#include "../../core/millis_t.h"
+#include "HAL.h"
+#include "timers.h"
+
+extern uint32_t MSC_SD_Init(uint8_t pdrv);
+extern "C" int isLPC1769();
+extern "C" void disk_timerproc();
+
+void SysTick_Callback() { disk_timerproc(); }
+
+void HAL_init() {
+
+  // Init LEDs
+  #if PIN_EXISTS(LED)
+    SET_DIR_OUTPUT(LED_PIN);
+    WRITE_PIN_CLR(LED_PIN);
+    #if PIN_EXISTS(LED2)
+      SET_DIR_OUTPUT(LED2_PIN);
+      WRITE_PIN_CLR(LED2_PIN);
+      #if PIN_EXISTS(LED3)
+        SET_DIR_OUTPUT(LED3_PIN);
+        WRITE_PIN_CLR(LED3_PIN);
+        #if PIN_EXISTS(LED4)
+          SET_DIR_OUTPUT(LED4_PIN);
+          WRITE_PIN_CLR(LED4_PIN);
+        #endif
+      #endif
+    #endif
+
+    // Flash status LED 3 times to indicate Marlin has started booting
+    for (uint8_t i = 0; i < 6; ++i) {
+      TOGGLE(LED_PIN);
+      delay(100);
+    }
+  #endif
+
+  // Init Servo Pins
+  #define INIT_SERVO(N) OUT_WRITE(SERVO##N##_PIN, LOW)
+  #if HAS_SERVO_0
+    INIT_SERVO(0);
+  #endif
+  #if HAS_SERVO_1
+    INIT_SERVO(1);
+  #endif
+  #if HAS_SERVO_2
+    INIT_SERVO(2);
+  #endif
+  #if HAS_SERVO_3
+    INIT_SERVO(3);
+  #endif
+
+  //debug_frmwrk_init();
+  //_DBG("\n\nDebug running\n");
+  // Initialise the SD card chip select pins as soon as possible
+  #if PIN_EXISTS(SS)
+    OUT_WRITE(SS_PIN, HIGH);
+  #endif
+
+  #if PIN_EXISTS(ONBOARD_SD_CS) && ONBOARD_SD_CS_PIN != SS_PIN
+    OUT_WRITE(ONBOARD_SD_CS_PIN, HIGH);
+  #endif
+
+  #ifdef LPC1768_ENABLE_CLKOUT_12M
+   /**
+    * CLKOUTCFG register
+    * bit 8 (CLKOUT_EN) = enables CLKOUT signal. Disabled for now to prevent glitch when enabling GPIO.
+    * bits 7:4 (CLKOUTDIV) = set to 0 for divider setting of /1
+    * bits 3:0 (CLKOUTSEL) = set to 1 to select main crystal oscillator as CLKOUT source
+    */
+    LPC_SC->CLKOUTCFG = (0<<8)|(0<<4)|(1<<0);
+    // set P1.27 pin to function 01 (CLKOUT)
+    PINSEL_CFG_Type PinCfg;
+    PinCfg.Portnum = 1;
+    PinCfg.Pinnum = 27;
+    PinCfg.Funcnum = 1;    // function 01 (CLKOUT)
+    PinCfg.OpenDrain = 0;  // not open drain
+    PinCfg.Pinmode = 2;    // no pull-up/pull-down
+    PINSEL_ConfigPin(&PinCfg);
+    // now set CLKOUT_EN bit
+    LPC_SC->CLKOUTCFG |= (1<<8);
+  #endif
+
+  USB_Init();                               // USB Initialization
+  USB_Connect(FALSE);                       // USB clear connection
+  delay(1000);                              // Give OS time to notice
+  USB_Connect(TRUE);
+
+  #if !BOTH(SHARED_SD_CARD, INIT_SDCARD_ON_BOOT) && DISABLED(NO_SD_HOST_DRIVE)
+    MSC_SD_Init(0);                         // Enable USB SD card access
+  #endif
+
+  const millis_t usb_timeout = millis() + 2000;
+  while (!USB_Configuration && PENDING(millis(), usb_timeout)) {
+    delay(50);
+    HAL_idletask();
+    #if PIN_EXISTS(LED)
+      TOGGLE(LED_PIN);     // Flash quickly during USB initialization
+    #endif
+  }
+
+  HAL_timer_init();
+}
+
+// HAL idle task
+void HAL_idletask() {
+  #if ENABLED(SHARED_SD_CARD)
+    // If Marlin is using the SD card we need to lock it to prevent access from
+    // a PC via USB.
+    // Other HALs use IS_SD_PRINTING() and IS_SD_FILE_OPEN() to check for access but
+    // this will not reliably detect delete operations. To be safe we will lock
+    // the disk if Marlin has it mounted. Unfortunately there is currently no way
+    // to unmount the disk from the LCD menu.
+    // if (IS_SD_PRINTING() || IS_SD_FILE_OPEN())
+    if (card.isMounted())
+      MSC_Aquire_Lock();
+    else
+      MSC_Release_Lock();
+  #endif
+  // Perform USB stack housekeeping
+  MSC_RunDeferredCommands();
+}
+
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/persistent_store_api.h
+++ b/Marlin/src/HAL/LPC1768/persistent_store_api.h
@ -0,0 +1,26 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../shared/persistent_store_api.h"
+
+#define FLASH_EEPROM_EMULATION
--- a/Marlin/src/HAL/LPC1768/persistent_store_flash.cpp
+++ b/Marlin/src/HAL/LPC1768/persistent_store_flash.cpp
@ -0,0 +1,129 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#ifdef TARGET_LPC1768
+
+/**
+ * Emulate EEPROM storage using Flash Memory
+ *
+ * Use a single 32K flash sector to store EEPROM data. To reduce the
+ * number of erase operations a simple "levelling" scheme is used that
+ * maintains a number of EEPROM "slots" within the larger flash sector.
+ * Each slot is used in turn and the entire sector is only erased when all
+ * slots have been used.
+ *
+ * A simple RAM image is used to hold the EEPROM data during I/O operations
+ * and this is flushed to the next available slot when an update is complete.
+ * If RAM usage becomes an issue we could store this image in one of the two
+ * 16Kb I/O buffers (intended to hold DMA USB and Ethernet data, but currently
+ * unused).
+ */
+#include "../../inc/MarlinConfigPre.h"
+
+#if ENABLED(FLASH_EEPROM_EMULATION)
+
+#include "persistent_store_api.h"
+#include "../../inc/MarlinConfig.h"
+
+extern "C" {
+  #include <lpc17xx_iap.h>
+}
+
+#define SECTOR_START(sector)  ((sector < 16) ? (sector * 0x1000) : ((sector - 14) * 0x8000))
+#define EEPROM_SECTOR 29
+#define EEPROM_SIZE (4096)
+#define SECTOR_SIZE (32768)
+#define EEPROM_SLOTS (SECTOR_SIZE/EEPROM_SIZE)
+#define EEPROM_ERASE (0xFF)
+#define SLOT_ADDRESS(sector, slot) (((uint8_t *)SECTOR_START(sector)) + slot * EEPROM_SIZE)
+
+static uint8_t ram_eeprom[EEPROM_SIZE] __attribute__((aligned(4))) = {0};
+static bool eeprom_dirty = false;
+static int current_slot = 0;
+
+bool PersistentStore::access_start() {
+  uint32_t first_nblank_loc, first_nblank_val;
+  IAP_STATUS_CODE status;
+
+  // discover which slot we are currently using.
+  __disable_irq();
+  status = BlankCheckSector(EEPROM_SECTOR, EEPROM_SECTOR, &first_nblank_loc, &first_nblank_val);
+  __enable_irq();
+
+  if (status == CMD_SUCCESS) {
+    // sector is blank so nothing stored yet
+    for (int i = 0; i < EEPROM_SIZE; i++) ram_eeprom[i] = EEPROM_ERASE;
+    current_slot = EEPROM_SLOTS;
+  }
+  else {
+    // current slot is the first non blank one
+    current_slot = first_nblank_loc / EEPROM_SIZE;
+    uint8_t *eeprom_data = SLOT_ADDRESS(EEPROM_SECTOR, current_slot);
+    // load current settings
+    for (int i = 0; i < EEPROM_SIZE; i++) ram_eeprom[i] = eeprom_data[i];
+  }
+  eeprom_dirty = false;
+
+  return true;
+}
+
+bool PersistentStore::access_finish() {
+  if (eeprom_dirty) {
+    IAP_STATUS_CODE status;
+    if (--current_slot < 0) {
+      // all slots have been used, erase everything and start again
+      __disable_irq();
+      status = EraseSector(EEPROM_SECTOR, EEPROM_SECTOR);
+      __enable_irq();
+
+      current_slot = EEPROM_SLOTS - 1;
+    }
+
+    __disable_irq();
+    status = CopyRAM2Flash(SLOT_ADDRESS(EEPROM_SECTOR, current_slot), ram_eeprom, IAP_WRITE_4096);
+    __enable_irq();
+
+    if (status != CMD_SUCCESS) return false;
+    eeprom_dirty = false;
+  }
+  return true;
+}
+
+bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
+  for (size_t i = 0; i < size; i++) ram_eeprom[pos + i] = value[i];
+  eeprom_dirty = true;
+  crc16(crc, value, size);
+  pos += size;
+  return false;  // return true for any error
+}
+
+bool PersistentStore::read_data(int &pos, uint8_t* value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
+  const uint8_t * const buff = writing ? &value[0] : &ram_eeprom[pos];
+  if (writing) for (size_t i = 0; i < size; i++) value[i] = ram_eeprom[pos + i];
+  crc16(crc, buff, size);
+  pos += size;
+  return false;  // return true for any error
+}
+
+size_t PersistentStore::capacity() { return EEPROM_SIZE; }
+
+#endif // FLASH_EEPROM_EMULATION
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/persistent_store_sdcard.cpp
+++ b/Marlin/src/HAL/LPC1768/persistent_store_sdcard.cpp
@ -0,0 +1,179 @@
+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#ifdef TARGET_LPC1768
+
+#include "../../inc/MarlinConfig.h"
+
+#if ENABLED(SDCARD_EEPROM_EMULATION)
+
+#include "persistent_store_api.h"
+
+#include <chanfs/diskio.h>
+#include <chanfs/ff.h>
+
+extern uint32_t MSC_Aquire_Lock();
+extern uint32_t MSC_Release_Lock();
+
+FATFS fat_fs;
+FIL eeprom_file;
+bool eeprom_file_open = false;
+
+bool PersistentStore::access_start() {
+  const char eeprom_erase_value = 0xFF;
+  MSC_Aquire_Lock();
+  if (f_mount(&fat_fs, "", 1)) {
+    MSC_Release_Lock();
+    return false;
+  }
+  FRESULT res = f_open(&eeprom_file, "eeprom.dat", FA_OPEN_ALWAYS | FA_WRITE | FA_READ);
+  if (res) MSC_Release_Lock();
+
+  if (res == FR_OK) {
+    UINT bytes_written;
+    FSIZE_t file_size = f_size(&eeprom_file);
+    f_lseek(&eeprom_file, file_size);
+    while (file_size < capacity() && res == FR_OK) {
+      res = f_write(&eeprom_file, &eeprom_erase_value, 1, &bytes_written);
+      file_size++;
+    }
+  }
+  if (res == FR_OK) {
+    f_lseek(&eeprom_file, 0);
+    f_sync(&eeprom_file);
+    eeprom_file_open = true;
+  }
+  return res == FR_OK;
+}
+
+bool PersistentStore::access_finish() {
+  f_close(&eeprom_file);
+  f_unmount("");
+  MSC_Release_Lock();
+  eeprom_file_open = false;
+  return true;
+}
+
+// This extra chit-chat goes away soon, but is helpful for now
+// to see errors that are happening in read_data / write_data
+static void debug_rw(const bool write, int &pos, const uint8_t *value, const size_t size, const FRESULT s, const size_t total=0) {
+  PGM_P const rw_str = write ? PSTR("write") : PSTR("read");
+  SERIAL_CHAR(' ');
+  serialprintPGM(rw_str);
+  SERIAL_ECHOPAIR("_data(", pos);
+  SERIAL_ECHOPAIR(",", (int)value);
+  SERIAL_ECHOPAIR(",", (int)size);
+  SERIAL_ECHOLNPGM(", ...)");
+  if (total) {
+    SERIAL_ECHOPGM(" f_");
+    serialprintPGM(rw_str);
+    SERIAL_ECHOPAIR("()=", (int)s);
+    SERIAL_ECHOPAIR("\n size=", size);
+    SERIAL_ECHOPGM("\n bytes_");
+    serialprintPGM(write ? PSTR("written=") : PSTR("read="));
+    SERIAL_ECHOLN(total);
+  }
+  else
+    SERIAL_ECHOLNPAIR(" f_lseek()=", (int)s);
+}
+
+// File function return codes for type FRESULT. This goes away soon, but
+// is helpful right now to see any errors in read_data and write_data.
+//
+//  typedef enum {
+//    FR_OK = 0,               /* (0) Succeeded */
+//    FR_DISK_ERR,             /* (1) A hard error occurred in the low level disk I/O layer */
+//    FR_INT_ERR,              /* (2) Assertion failed */
+//    FR_NOT_READY,            /* (3) The physical drive cannot work */
+//    FR_NO_FILE,              /* (4) Could not find the file */
+//    FR_NO_PATH,              /* (5) Could not find the path */
+//    FR_INVALID_NAME,         /* (6) The path name format is invalid */
+//    FR_DENIED,               /* (7) Access denied due to prohibited access or directory full */
+//    FR_EXIST,                /* (8) Access denied due to prohibited access */
+//    FR_INVALID_OBJECT,       /* (9) The file/directory object is invalid */
+//    FR_WRITE_PROTECTED,      /* (10) The physical drive is write protected */
+//    FR_INVALID_DRIVE,        /* (11) The logical drive number is invalid */
+//    FR_NOT_ENABLED,          /* (12) The volume has no work area */
+//    FR_NO_FILESYSTEM,        /* (13) There is no valid FAT volume */
+//    FR_MKFS_ABORTED,         /* (14) The f_mkfs() aborted due to any problem */
+//    FR_TIMEOUT,              /* (15) Could not get a grant to access the volume within defined period */
+//    FR_LOCKED,               /* (16) The operation is rejected according to the file sharing policy */
+//    FR_NOT_ENOUGH_CORE,      /* (17) LFN working buffer could not be allocated */
+//    FR_TOO_MANY_OPEN_FILES,  /* (18) Number of open files > FF_FS_LOCK */
+//    FR_INVALID_PARAMETER     /* (19) Given parameter is invalid */
+//  } FRESULT;
+
+bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
+  if (!eeprom_file_open) return true;
+  FRESULT s;
+  UINT bytes_written = 0;
+
+  s = f_lseek(&eeprom_file, pos);
+  if (s) {
+    debug_rw(true, pos, value, size, s);
+    return s;
+  }
+
+  s = f_write(&eeprom_file, (void*)value, size, &bytes_written);
+  if (s) {
+    debug_rw(true, pos, value, size, s, bytes_written);
+    return s;
+  }
+  crc16(crc, value, size);
+  pos += size;
+  return bytes_written != size;  // return true for any error
+}
+
+bool PersistentStore::read_data(int &pos, uint8_t* value, const size_t size, uint16_t *crc, const bool writing/*=true*/) {
+  if (!eeprom_file_open) return true;
+  UINT bytes_read = 0;
+  FRESULT s;
+  s = f_lseek(&eeprom_file, pos);
+
+  if (s) {
+    debug_rw(false, pos, value, size, s);
+    return true;
+  }
+
+  if (writing) {
+    s = f_read(&eeprom_file, (void*)value, size, &bytes_read);
+    crc16(crc, value, size);
+  }
+  else {
+    uint8_t temp[size];
+    s = f_read(&eeprom_file, (void*)temp, size, &bytes_read);
+    crc16(crc, temp, size);
+  }
+
+  if (s) {
+    debug_rw(false, pos, value, size, s, bytes_read);
+    return true;
+  }
+
+  pos += size;
+  return bytes_read != size;  // return true for any error
+}
+
+size_t PersistentStore::capacity() { return 4096; } // 4KiB of Emulated EEPROM
+
+#endif // SDCARD_EEPROM_EMULATION
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/pinsDebug.h
+++ b/Marlin/src/HAL/LPC1768/pinsDebug.h
@ -0,0 +1,53 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Support routines for LPC1768
+ */
+
+/**
+ * Translation of routines & variables used by pinsDebug.h
+ */
+
+#define NUMBER_PINS_TOTAL NUM_DIGITAL_PINS
+#define pwm_details(pin) pin = pin    // do nothing  // print PWM details
+#define pwm_status(pin) false //Print a pin's PWM status. Return true if it's currently a PWM pin.
+#define IS_ANALOG(P) (DIGITAL_PIN_TO_ANALOG_PIN(P) >= 0 ? 1 : 0)
+#define digitalRead_mod(p) extDigitalRead(p)
+#define PRINT_PORT(p)
+#define GET_ARRAY_PIN(p) pin_array[p].pin
+#define PRINT_ARRAY_NAME(x) do{ sprintf_P(buffer, PSTR("%-" STRINGIFY(MAX_NAME_LENGTH) "s"), pin_array[x].name); SERIAL_ECHO(buffer); }while(0)
+#define PRINT_PIN(p) do{ sprintf_P(buffer, PSTR("%d.%02d"), LPC176x::pin_port(p), LPC176x::pin_bit(p)); SERIAL_ECHO(buffer); }while(0)
+#define MULTI_NAME_PAD 16 // space needed to be pretty if not first name assigned to a pin
+
+// pins that will cause hang/reset/disconnect in M43 Toggle and Watch utilities
+#ifndef M43_NEVER_TOUCH
+  #define M43_NEVER_TOUCH(Q) ((Q) == P0_29 || (Q) == P0_30 || (Q) == P2_09)  // USB pins
+#endif
+
+bool GET_PINMODE(const pin_t pin) {
+  if (!LPC176x::pin_is_valid(pin) || LPC176x::pin_adc_enabled(pin)) // found an invalid pin or active analog pin
+    return false;
+
+  return LPC176x::gpio_direction(pin);
+}
+
+bool GET_ARRAY_IS_DIGITAL(const pin_t pin) {
+  return (!LPC176x::pin_has_adc(pin) || !LPC176x::pin_adc_enabled(pin));
+}
--- a/Marlin/src/HAL/LPC1768/spi_pins.h
+++ b/Marlin/src/HAL/LPC1768/spi_pins.h
@ -0,0 +1,54 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../../core/macros.h"
+
+#if ENABLED(SDSUPPORT) && HAS_GRAPHICAL_LCD && (LCD_PINS_D4 == SCK_PIN || LCD_PINS_ENABLE == MOSI_PIN || DOGLCD_SCK == SCK_PIN || DOGLCD_MOSI == MOSI_PIN)
+  #define LPC_SOFTWARE_SPI  // If the SD card and LCD adapter share the same SPI pins, then software SPI is currently
+                            // needed due to the speed and mode required for communicating with each device being different.
+                            // This requirement can be removed if the SPI access to these devices is updated to use
+                            // spiBeginTransaction.
+#endif
+
+/** onboard SD card */
+//#define SCK_PIN           P0_07
+//#define MISO_PIN          P0_08
+//#define MOSI_PIN          P0_09
+//#define SS_PIN            P0_06
+/** external */
+#ifndef SCK_PIN
+  #define SCK_PIN           P0_15
+#endif
+#ifndef MISO_PIN
+  #define MISO_PIN          P0_17
+#endif
+#ifndef MOSI_PIN
+  #define MOSI_PIN          P0_18
+#endif
+#ifndef SS_PIN
+  #define SS_PIN            P1_23
+#endif
+#if !defined(SDSS) || SDSS == P_NC // gets defaulted in pins.h
+  #undef SDSS
+  #define SDSS              SS_PIN
+#endif
--- a/Marlin/src/HAL/LPC1768/timers.cpp
+++ b/Marlin/src/HAL/LPC1768/timers.cpp
@ -0,0 +1,66 @@
+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Description:
+ *
+ * Timers for LPC1768
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../inc/MarlinConfig.h"
+#include "timers.h"
+
+void HAL_timer_init() {
+  SBI(LPC_SC->PCONP, SBIT_TIMER0);  // Power ON Timer 0
+  LPC_TIM0->PR = (HAL_TIMER_RATE) / (STEPPER_TIMER_RATE) - 1; // Use prescaler to set frequency if needed
+
+  SBI(LPC_SC->PCONP, SBIT_TIMER1);  // Power ON Timer 1
+  LPC_TIM1->PR = (HAL_TIMER_RATE) / 1000000 - 1;
+}
+
+void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
+  switch (timer_num) {
+    case 0:
+      LPC_TIM0->MCR = _BV(SBIT_MR0I) | _BV(SBIT_MR0R); // Match on MR0, reset on MR0, interrupts when NVIC enables them
+      LPC_TIM0->MR0 = uint32_t(STEPPER_TIMER_RATE) / frequency; // Match value (period) to set frequency
+      LPC_TIM0->TCR = _BV(SBIT_CNTEN); // Counter Enable
+
+      NVIC_SetPriority(TIMER0_IRQn, NVIC_EncodePriority(0, 1, 0));
+      NVIC_EnableIRQ(TIMER0_IRQn);
+      break;
+
+    case 1:
+      LPC_TIM1->MCR = _BV(SBIT_MR0I) | _BV(SBIT_MR0R); // Match on MR0, reset on MR0, interrupts when NVIC enables them
+      LPC_TIM1->MR0 = uint32_t(TEMP_TIMER_RATE) / frequency;
+      LPC_TIM1->TCR = _BV(SBIT_CNTEN); // Counter Enable
+
+      NVIC_SetPriority(TIMER1_IRQn, NVIC_EncodePriority(0, 2, 0));
+      NVIC_EnableIRQ(TIMER1_IRQn);
+      break;
+
+    default: break;
+  }
+}
+
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/timers.h
+++ b/Marlin/src/HAL/LPC1768/timers.h
@ -0,0 +1,162 @@
+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ *
+ * HAL For LPC1768
+ */
+
+#include <stdint.h>
+
+#include "../../core/macros.h"
+
+#define SBIT_TIMER0 1
+#define SBIT_TIMER1 2
+
+#define SBIT_CNTEN 0
+
+#define SBIT_MR0I  0 // Timer 0 Interrupt when TC matches MR0
+#define SBIT_MR0R  1 // Timer 0 Reset TC on Match
+#define SBIT_MR0S  2 // Timer 0 Stop TC and PC on Match
+#define SBIT_MR1I  3
+#define SBIT_MR1R  4
+#define SBIT_MR1S  5
+#define SBIT_MR2I  6
+#define SBIT_MR2R  7
+#define SBIT_MR2S  8
+#define SBIT_MR3I  9
+#define SBIT_MR3R 10
+#define SBIT_MR3S 11
+
+// ------------------------
+// Defines
+// ------------------------
+
+#define _HAL_TIMER(T) _CAT(LPC_TIM, T)
+#define _HAL_TIMER_IRQ(T) TIMER##T##_IRQn
+#define __HAL_TIMER_ISR(T) extern "C" void TIMER##T##_IRQHandler()
+#define _HAL_TIMER_ISR(T)  __HAL_TIMER_ISR(T)
+
+typedef uint32_t hal_timer_t;
+#define HAL_TIMER_TYPE_MAX 0xFFFFFFFF
+
+#define HAL_TIMER_RATE         ((F_CPU) / 4)  // frequency of timers peripherals
+
+#define STEP_TIMER_NUM 0  // Timer Index for Stepper
+#define TEMP_TIMER_NUM 1  // Timer Index for Temperature
+#define PULSE_TIMER_NUM STEP_TIMER_NUM
+#define PWM_TIMER_NUM 3   // Timer Index for PWM
+
+#define TEMP_TIMER_RATE        1000000
+#define TEMP_TIMER_FREQUENCY   1000 // temperature interrupt frequency
+
+#define STEPPER_TIMER_RATE     HAL_TIMER_RATE   // frequency of stepper timer (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE)
+#define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // stepper timer ticks per µs
+#define STEPPER_TIMER_PRESCALE (CYCLES_PER_MICROSECOND / STEPPER_TIMER_TICKS_PER_US)
+
+#define PULSE_TIMER_RATE       STEPPER_TIMER_RATE   // frequency of pulse timer
+#define PULSE_TIMER_PRESCALE   STEPPER_TIMER_PRESCALE
+#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
+
+#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(STEP_TIMER_NUM)
+#define DISABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_disable_interrupt(STEP_TIMER_NUM)
+#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(STEP_TIMER_NUM)
+
+#define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
+#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
+
+#define HAL_STEP_TIMER_ISR() _HAL_TIMER_ISR(STEP_TIMER_NUM)
+#define HAL_TEMP_TIMER_ISR() _HAL_TIMER_ISR(TEMP_TIMER_NUM)
+
+// Timer references by index
+#define STEP_TIMER _HAL_TIMER(STEP_TIMER_NUM)
+#define TEMP_TIMER _HAL_TIMER(TEMP_TIMER_NUM)
+
+// ------------------------
+// Public functions
+// ------------------------
+void HAL_timer_init();
+void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);
+
+FORCE_INLINE static void HAL_timer_set_compare(const uint8_t timer_num, const hal_timer_t compare) {
+  switch (timer_num) {
+    case 0: STEP_TIMER->MR0 = compare; break; // Stepper Timer Match Register 0
+    case 1: TEMP_TIMER->MR0 = compare; break; //    Temp Timer Match Register 0
+  }
+}
+
+FORCE_INLINE static hal_timer_t HAL_timer_get_compare(const uint8_t timer_num) {
+  switch (timer_num) {
+    case 0: return STEP_TIMER->MR0; // Stepper Timer Match Register 0
+    case 1: return TEMP_TIMER->MR0; //    Temp Timer Match Register 0
+  }
+  return 0;
+}
+
+FORCE_INLINE static hal_timer_t HAL_timer_get_count(const uint8_t timer_num) {
+  switch (timer_num) {
+    case 0: return STEP_TIMER->TC; // Stepper Timer Count
+    case 1: return TEMP_TIMER->TC; //    Temp Timer Count
+  }
+  return 0;
+}
+
+FORCE_INLINE static void HAL_timer_enable_interrupt(const uint8_t timer_num) {
+  switch (timer_num) {
+    case 0: NVIC_EnableIRQ(TIMER0_IRQn); break; // Enable interrupt handler
+    case 1: NVIC_EnableIRQ(TIMER1_IRQn); break; // Enable interrupt handler
+  }
+}
+
+FORCE_INLINE static void HAL_timer_disable_interrupt(const uint8_t timer_num) {
+  switch (timer_num) {
+    case 0: NVIC_DisableIRQ(TIMER0_IRQn); break; // Disable interrupt handler
+    case 1: NVIC_DisableIRQ(TIMER1_IRQn); break; // Disable interrupt handler
+  }
+
+  // We NEED memory barriers to ensure Interrupts are actually disabled!
+  // ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
+  __DSB();
+  __ISB();
+}
+
+// This function is missing from CMSIS
+FORCE_INLINE static bool NVIC_GetEnableIRQ(IRQn_Type IRQn) {
+  return (NVIC->ISER[((uint32_t)IRQn) >> 5] & (1 << ((uint32_t)IRQn) & 0x1F)) != 0;
+}
+
+FORCE_INLINE static bool HAL_timer_interrupt_enabled(const uint8_t timer_num) {
+  switch (timer_num) {
+    case 0: return NVIC_GetEnableIRQ(TIMER0_IRQn); // Check if interrupt is enabled or not
+    case 1: return NVIC_GetEnableIRQ(TIMER1_IRQn); // Check if interrupt is enabled or not
+  }
+  return false;
+}
+
+FORCE_INLINE static void HAL_timer_isr_prologue(const uint8_t timer_num) {
+  switch (timer_num) {
+    case 0: SBI(STEP_TIMER->IR, SBIT_CNTEN); break;
+    case 1: SBI(TEMP_TIMER->IR, SBIT_CNTEN); break;
+  }
+}
+
+#define HAL_timer_isr_epilogue(TIMER_NUM)
--- a/Marlin/src/HAL/LPC1768/u8g/LCD_I2C_routines.cpp
+++ b/Marlin/src/HAL/LPC1768/u8g/LCD_I2C_routines.cpp
@ -0,0 +1,123 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+// adapted from  I2C/master/master.c example
+//   https://www-users.cs.york.ac.uk/~pcc/MCP/HAPR-Course-web/CMSIS/examples/html/master_8c_source.html
+
+#ifdef TARGET_LPC1768
+
+#include "../include/i2c_util.h"
+#include "../../../core/millis_t.h"
+
+extern int millis();
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+//////////////////////////////////////////////////////////////////////////////////////
+
+// These two routines are exact copies of the lpc17xx_i2c.c routines.  Couldn't link to
+// to the lpc17xx_i2c.c routines so had to copy them into this file & rename them.
+
+static uint32_t _I2C_Start(LPC_I2C_TypeDef *I2Cx) {
+  // Reset STA, STO, SI
+  I2Cx->I2CONCLR = I2C_I2CONCLR_SIC|I2C_I2CONCLR_STOC|I2C_I2CONCLR_STAC;
+
+  // Enter to Master Transmitter mode
+  I2Cx->I2CONSET = I2C_I2CONSET_STA;
+
+  // Wait for complete
+  while (!(I2Cx->I2CONSET & I2C_I2CONSET_SI));
+  I2Cx->I2CONCLR = I2C_I2CONCLR_STAC;
+  return (I2Cx->I2STAT & I2C_STAT_CODE_BITMASK);
+}
+
+static void _I2C_Stop (LPC_I2C_TypeDef *I2Cx) {
+  /* Make sure start bit is not active */
+  if (I2Cx->I2CONSET & I2C_I2CONSET_STA)
+    I2Cx->I2CONCLR = I2C_I2CONCLR_STAC;
+
+  I2Cx->I2CONSET = I2C_I2CONSET_STO|I2C_I2CONSET_AA;
+  I2Cx->I2CONCLR = I2C_I2CONCLR_SIC;
+}
+
+//////////////////////////////////////////////////////////////////////////////////////
+
+#define I2CDEV_S_ADDR   0x78  // from SSD1306  //actual address is 0x3C - shift left 1 with LSB set to 0 to indicate write
+
+#define BUFFER_SIZE                     0x1  // only do single byte transfers with LCDs
+
+I2C_M_SETUP_Type transferMCfg;
+
+#define I2C_status (LPC_I2C1->I2STAT & I2C_STAT_CODE_BITMASK)
+
+// Send slave address and write bit
+uint8_t u8g_i2c_start(const uint8_t sla) {
+  // Sometimes TX data ACK or NAK status is returned.  That mean the start state didn't
+  // happen which means only the value of the slave address was send.  Keep looping until
+  // the slave address and write bit are actually sent.
+  do{
+    _I2C_Stop(I2CDEV_M); // output stop state on I2C bus
+    _I2C_Start(I2CDEV_M); // output start state on I2C bus
+    while ((I2C_status != I2C_I2STAT_M_TX_START)
+        && (I2C_status != I2C_I2STAT_M_TX_RESTART)
+        && (I2C_status != I2C_I2STAT_M_TX_DAT_ACK)
+        && (I2C_status != I2C_I2STAT_M_TX_DAT_NACK));  //wait for start to be asserted
+
+    LPC_I2C1->I2CONCLR = I2C_I2CONCLR_STAC; // clear start state before tansmitting slave address
+    LPC_I2C1->I2DAT = I2CDEV_S_ADDR & I2C_I2DAT_BITMASK; // transmit slave address & write bit
+    LPC_I2C1->I2CONSET = I2C_I2CONSET_AA;
+    LPC_I2C1->I2CONCLR = I2C_I2CONCLR_SIC;
+    while ((I2C_status != I2C_I2STAT_M_TX_SLAW_ACK)
+        && (I2C_status != I2C_I2STAT_M_TX_SLAW_NACK)
+        && (I2C_status != I2C_I2STAT_M_TX_DAT_ACK)
+        && (I2C_status != I2C_I2STAT_M_TX_DAT_NACK));  //wait for slaw to finish
+  }while ( (I2C_status == I2C_I2STAT_M_TX_DAT_ACK) ||  (I2C_status == I2C_I2STAT_M_TX_DAT_NACK));
+  return 1;
+}
+
+void u8g_i2c_init(const uint8_t clock_option) {
+  configure_i2c(clock_option);
+  u8g_i2c_start(0); // Send slave address and write bit
+}
+
+uint8_t u8g_i2c_send_byte(uint8_t data) {
+  #define I2C_TIMEOUT 3
+  LPC_I2C1->I2DAT = data & I2C_I2DAT_BITMASK; // transmit data
+  LPC_I2C1->I2CONSET = I2C_I2CONSET_AA;
+  LPC_I2C1->I2CONCLR = I2C_I2CONCLR_SIC;
+  const millis_t timeout = millis() + I2C_TIMEOUT;
+  while ((I2C_status != I2C_I2STAT_M_TX_DAT_ACK) && (I2C_status != I2C_I2STAT_M_TX_DAT_NACK) && PENDING(millis(), timeout));  // wait for xmit to finish
+  // had hangs with SH1106 so added time out - have seen temporary screen corruption when this happens
+  return 1;
+}
+
+void u8g_i2c_stop() {
+}
+
+
+#ifdef __cplusplus
+  }
+#endif
+
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/u8g/LCD_I2C_routines.h
+++ b/Marlin/src/HAL/LPC1768/u8g/LCD_I2C_routines.h
@ -0,0 +1,28 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+void u8g_i2c_init(const uint8_t clock_options);
+//uint8_t u8g_i2c_wait(uint8_t mask, uint8_t pos);
+uint8_t u8g_i2c_start(uint8_t sla);
+uint8_t u8g_i2c_send_byte(uint8_t data);
+void u8g_i2c_stop();
--- a/Marlin/src/HAL/LPC1768/u8g/LCD_defines.h
+++ b/Marlin/src/HAL/LPC1768/u8g/LCD_defines.h
@ -0,0 +1,49 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * LPC1768 LCD-specific defines
+ */
+
+// The following are optional depending on the platform.
+
+// definitions of HAL specific com and device drivers.
+uint8_t u8g_com_HAL_LPC1768_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
+uint8_t u8g_com_HAL_LPC1768_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
+uint8_t u8g_com_HAL_LPC1768_ST7920_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
+uint8_t u8g_com_HAL_LPC1768_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
+uint8_t u8g_com_HAL_LPC1768_ssd_hw_i2c_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
+
+
+// connect U8g com generic com names to the desired driver
+#define U8G_COM_HW_SPI u8g_com_HAL_LPC1768_hw_spi_fn  // use LPC1768 specific hardware SPI routine
+#define U8G_COM_SW_SPI u8g_com_HAL_LPC1768_sw_spi_fn  // use LPC1768 specific software SPI routine
+#define U8G_COM_ST7920_HW_SPI u8g_com_HAL_LPC1768_ST7920_hw_spi_fn
+#define U8G_COM_ST7920_SW_SPI u8g_com_HAL_LPC1768_ST7920_sw_spi_fn
+#define U8G_COM_SSD_I2C u8g_com_HAL_LPC1768_ssd_hw_i2c_fn
+
+// let these default for now
+#define U8G_COM_PARALLEL u8g_com_null_fn
+#define U8G_COM_T6963 u8g_com_null_fn
+#define U8G_COM_FAST_PARALLEL u8g_com_null_fn
+#define U8G_COM_UC_I2C u8g_com_null_fn
--- a/Marlin/src/HAL/LPC1768/u8g/LCD_delay.h
+++ b/Marlin/src/HAL/LPC1768/u8g/LCD_delay.h
@ -0,0 +1,43 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * LCD delay routines - used by all the drivers.
+ *
+ * These are based on the LPC1768 routines.
+ *
+ * Couldn't just call exact copies because the overhead
+ * results in a one microsecond delay taking about 4µS.
+ */
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+void U8g_delay(int msec);
+void u8g_MicroDelay();
+void u8g_10MicroDelay();
+
+#ifdef __cplusplus
+  }
+#endif
--- a/Marlin/src/HAL/LPC1768/u8g/LCD_pin_routines.c
+++ b/Marlin/src/HAL/LPC1768/u8g/LCD_pin_routines.c
@ -0,0 +1,110 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Low level pin manipulation routines - used by all the drivers.
+ *
+ * These are based on the LPC1768 pinMode, digitalRead & digitalWrite routines.
+ *
+ * Couldn't just call exact copies because the overhead killed the LCD update speed
+ * With an intermediate level the softspi was running in the 10-20kHz range which
+ * resulted in using about about 25% of the CPU's time.
+ */
+
+#ifdef TARGET_LPC1768
+
+#include <LPC17xx.h>
+#include <lpc17xx_pinsel.h>
+#include "../../../core/macros.h"
+//#include <pinmapping.h>
+
+#define LPC_PORT_OFFSET         (0x0020)
+#define LPC_PIN(pin)            (1UL << pin)
+#define LPC_GPIO(port)          ((volatile LPC_GPIO_TypeDef *)(LPC_GPIO0_BASE + LPC_PORT_OFFSET * port))
+
+#define INPUT 0
+#define OUTPUT 1
+#define INPUT_PULLUP 2
+
+uint8_t LPC1768_PIN_PORT(const uint8_t pin);
+uint8_t LPC1768_PIN_PIN(const uint8_t pin);
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+// I/O functions
+// As defined by Arduino INPUT(0x0), OUTPUT(0x1), INPUT_PULLUP(0x2)
+void pinMode_LCD(uint8_t pin, uint8_t mode) {
+  #define LPC1768_PIN_PORT(pin) ((uint8_t)((pin >> 5) & 0b111))
+  #define LPC1768_PIN_PIN(pin) ((uint8_t)(pin & 0b11111))
+  PINSEL_CFG_Type config = { LPC1768_PIN_PORT(pin),
+                             LPC1768_PIN_PIN(pin),
+                             PINSEL_FUNC_0,
+                             PINSEL_PINMODE_TRISTATE,
+                             PINSEL_PINMODE_NORMAL };
+  switch (mode) {
+    case INPUT:
+      LPC_GPIO(LPC1768_PIN_PORT(pin))->FIODIR &= ~LPC_PIN(LPC1768_PIN_PIN(pin));
+      PINSEL_ConfigPin(&config);
+      break;
+    case OUTPUT:
+      LPC_GPIO(LPC1768_PIN_PORT(pin))->FIODIR |=  LPC_PIN(LPC1768_PIN_PIN(pin));
+      PINSEL_ConfigPin(&config);
+      break;
+    case INPUT_PULLUP:
+      LPC_GPIO(LPC1768_PIN_PORT(pin))->FIODIR &= ~LPC_PIN(LPC1768_PIN_PIN(pin));
+      config.Pinmode = PINSEL_PINMODE_PULLUP;
+      PINSEL_ConfigPin(&config);
+      break;
+    default: break;
+  }
+}
+
+void u8g_SetPinOutput(uint8_t internal_pin_number) {
+   pinMode_LCD(internal_pin_number, 1);  // OUTPUT
+}
+
+void u8g_SetPinInput(uint8_t internal_pin_number) {
+   pinMode_LCD(internal_pin_number, 0);  // INPUT
+}
+
+void u8g_SetPinLevel(uint8_t  pin, uint8_t  pin_status) {
+  #define LPC1768_PIN_PORT(pin) ((uint8_t)((pin >> 5) & 0b111))
+  #define LPC1768_PIN_PIN(pin) ((uint8_t)(pin & 0b11111))
+  if (pin_status)
+    LPC_GPIO(LPC1768_PIN_PORT(pin))->FIOSET = LPC_PIN(LPC1768_PIN_PIN(pin));
+  else
+    LPC_GPIO(LPC1768_PIN_PORT(pin))->FIOCLR = LPC_PIN(LPC1768_PIN_PIN(pin));
+}
+
+uint8_t u8g_GetPinLevel(uint8_t pin) {
+  #define LPC1768_PIN_PORT(pin) ((uint8_t)((pin >> 5) & 0b111))
+  #define LPC1768_PIN_PIN(pin) ((uint8_t)(pin & 0b11111))
+  return (uint32_t)LPC_GPIO(LPC1768_PIN_PORT(pin))->FIOPIN & LPC_PIN(LPC1768_PIN_PIN(pin)) ? 1 : 0;
+}
+
+#ifdef __cplusplus
+  }
+#endif
+
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/u8g/LCD_pin_routines.h
+++ b/Marlin/src/HAL/LPC1768/u8g/LCD_pin_routines.h
@ -0,0 +1,37 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * Low level pin manipulation routines - used by all the drivers.
+ *
+ * These are based on the LPC1768 pinMode, digitalRead & digitalWrite routines.
+ *
+ * Couldn't just call exact copies because the overhead killed the LCD update speed
+ * With an intermediate level the softspi was running in the 10-20kHz range which
+ * resulted in using about about 25% of the CPU's time.
+ */
+
+void u8g_SetPinOutput(uint8_t internal_pin_number);
+void u8g_SetPinInput(uint8_t internal_pin_number);
+void u8g_SetPinLevel(uint8_t  pin, uint8_t  pin_status);
+uint8_t u8g_GetPinLevel(uint8_t pin);
--- a/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_hw_spi.cpp
+++ b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_hw_spi.cpp
@ -0,0 +1,129 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Based on u8g_com_msp430_hw_spi.c
+ *
+ * Universal 8bit Graphics Library
+ *
+ * Copyright (c) 2011, olikraus@gmail.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice, this list
+ *    of conditions and the following disclaimer.
+ *
+ *  * Redistributions in binary form must reproduce the above copyright notice, this
+ *    list of conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if HAS_GRAPHICAL_LCD
+
+#include <U8glib.h>
+#include "../../shared/HAL_SPI.h"
+
+void spiBegin();
+void spiInit(uint8_t spiRate);
+void spiSend(uint8_t b);
+void spiSend(const uint8_t* buf, size_t n);
+
+uint8_t u8g_com_HAL_LPC1768_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+  switch (msg) {
+    case U8G_COM_MSG_STOP:
+      break;
+
+    case U8G_COM_MSG_INIT:
+      u8g_SetPILevel(u8g, U8G_PI_CS, 1);
+      u8g_SetPILevel(u8g, U8G_PI_A0, 1);
+      u8g_SetPILevel(u8g, U8G_PI_RESET, 1);
+      u8g_SetPIOutput(u8g, U8G_PI_CS);
+      u8g_SetPIOutput(u8g, U8G_PI_A0);
+      u8g_SetPIOutput(u8g, U8G_PI_RESET);
+      u8g_Delay(5);
+      spiBegin();
+      #ifndef SPI_SPEED
+        #define SPI_SPEED SPI_FULL_SPEED  // use same SPI speed as SD card
+      #endif
+      spiInit(SPI_SPEED);
+      break;
+
+    case U8G_COM_MSG_ADDRESS:                     /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
+      u8g_SetPILevel(u8g, U8G_PI_A0, arg_val);
+      break;
+
+    case U8G_COM_MSG_CHIP_SELECT:
+      u8g_SetPILevel(u8g, U8G_PI_CS, (arg_val ? 0 : 1));
+      break;
+
+    case U8G_COM_MSG_RESET:
+      u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
+      break;
+
+    case U8G_COM_MSG_WRITE_BYTE:
+      spiSend((uint8_t)arg_val);
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ: {
+        uint8_t *ptr = (uint8_t*) arg_ptr;
+        while (arg_val > 0) {
+          spiSend(*ptr++);
+          arg_val--;
+        }
+      }
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ_P: {
+        uint8_t *ptr = (uint8_t*) arg_ptr;
+        while (arg_val > 0) {
+          spiSend(*ptr++);
+          arg_val--;
+        }
+      }
+      break;
+  }
+  return 1;
+}
+
+#endif // HAS_GRAPHICAL_LCD
+
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_ssd_hw_i2c.cpp
+++ b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_ssd_hw_i2c.cpp
@ -0,0 +1,198 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Based on u8g_com_arduino_ssd_i2c.c
+ *
+ * COM interface for Arduino (AND ATmega) and the SSDxxxx chip (SOLOMON) variant
+ * I2C protocol
+ *
+ * Universal 8bit Graphics Library
+ *
+ * Copyright (c) 2011, olikraus@gmail.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice, this list
+ *    of conditions and the following disclaimer.
+ *
+ *  * Redistributions in binary form must reproduce the above copyright notice, this
+ *    list of conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * Special pin usage:
+ * U8G_PI_I2C_OPTION additional options
+ * U8G_PI_A0_STATE used to store the last value of the command/data register selection
+ * U8G_PI_SET_A0   1: Signal request to update I2C device with new A0_STATE, 0: Do nothing, A0_STATE matches I2C device
+ * U8G_PI_SCL    clock line (NOT USED)
+ * U8G_PI_SDA    data line (NOT USED)
+ *
+ * U8G_PI_RESET    reset line (currently disabled, see below)
+ *
+ * Protocol:
+ * SLA, Cmd/Data Selection, Arguments
+ * The command/data register is selected by a special instruction byte, which is sent after SLA
+ *
+ * The continue bit is always 0 so that a (re)start is equired for the change from cmd to/data mode
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if HAS_GRAPHICAL_LCD
+
+#include <U8glib.h>
+
+#define I2C_SLA         (0x3C*2)
+//#define I2C_CMD_MODE  0x080
+#define I2C_CMD_MODE    0x000
+#define I2C_DATA_MODE   0x040
+
+uint8_t u8g_com_ssd_I2C_start_sequence(u8g_t *u8g) {
+  /* are we requested to set the a0 state? */
+  if (u8g->pin_list[U8G_PI_SET_A0] == 0) return 1;
+
+  /* setup bus, might be a repeated start */
+  if (u8g_i2c_start(I2C_SLA) == 0) return 0;
+  if (u8g->pin_list[U8G_PI_A0_STATE] == 0) {
+    if (u8g_i2c_send_byte(I2C_CMD_MODE) == 0) return 0;
+  }
+  else if (u8g_i2c_send_byte(I2C_DATA_MODE) == 0)
+    return 0;
+
+  u8g->pin_list[U8G_PI_SET_A0] = 0;
+  return 1;
+}
+
+uint8_t u8g_com_HAL_LPC1768_ssd_hw_i2c_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+  switch (msg) {
+    case U8G_COM_MSG_INIT:
+      //u8g_com_arduino_digital_write(u8g, U8G_PI_SCL, HIGH);
+      //u8g_com_arduino_digital_write(u8g, U8G_PI_SDA, HIGH);
+      //u8g->pin_list[U8G_PI_A0_STATE] = 0;       /* initial RS state: unknown mode */
+
+      u8g_i2c_init(u8g->pin_list[U8G_PI_I2C_OPTION]);
+      u8g_com_ssd_I2C_start_sequence(u8g);
+      break;
+
+    case U8G_COM_MSG_STOP:
+      break;
+
+    case U8G_COM_MSG_RESET:
+      /* Currently disabled, but it could be enable. Previous restrictions have been removed */
+      /* u8g_com_arduino_digital_write(u8g, U8G_PI_RESET, arg_val); */
+      break;
+
+    case U8G_COM_MSG_CHIP_SELECT:
+      u8g->pin_list[U8G_PI_A0_STATE] = 0;
+      u8g->pin_list[U8G_PI_SET_A0] = 1;   /* force a0 to set again, also forces start condition */
+      if (arg_val == 0 ) {
+        /* disable chip, send stop condition */
+        u8g_i2c_stop();
+      }
+      else {
+        /* enable, do nothing: any byte writing will trigger the i2c start */
+      }
+      break;
+
+    case U8G_COM_MSG_WRITE_BYTE:
+      //u8g->pin_list[U8G_PI_SET_A0] = 1;
+      if (u8g_com_ssd_I2C_start_sequence(u8g) == 0) {
+        u8g_i2c_stop();
+        return 0;
+      }
+
+      if (u8g_i2c_send_byte(arg_val) == 0) {
+        u8g_i2c_stop();
+        return 0;
+      }
+      // u8g_i2c_stop();
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ: {
+        //u8g->pin_list[U8G_PI_SET_A0] = 1;
+        if (u8g_com_ssd_I2C_start_sequence(u8g) == 0) {
+         u8g_i2c_stop();
+         return 0;
+        }
+
+        uint8_t *ptr = (uint8_t *)arg_ptr;
+        while (arg_val > 0) {
+          if (u8g_i2c_send_byte(*ptr++) == 0) {
+            u8g_i2c_stop();
+            return 0;
+          }
+          arg_val--;
+        }
+      }
+      // u8g_i2c_stop();
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ_P: {
+        //u8g->pin_list[U8G_PI_SET_A0] = 1;
+        if (u8g_com_ssd_I2C_start_sequence(u8g) == 0) {
+          u8g_i2c_stop();
+          return 0;
+        }
+
+        uint8_t *ptr = (uint8_t *)arg_ptr;
+        while (arg_val > 0) {
+          if (u8g_i2c_send_byte(u8g_pgm_read(ptr)) == 0)
+            return 0;
+          ptr++;
+          arg_val--;
+        }
+      }
+      // u8g_i2c_stop();
+      break;
+
+    case U8G_COM_MSG_ADDRESS:                     /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
+      u8g->pin_list[U8G_PI_A0_STATE] = arg_val;
+      u8g->pin_list[U8G_PI_SET_A0] = 1;   /* force a0 to set again */
+      break;
+
+  } // switch
+  return 1;
+}
+
+#endif // HAS_GRAPHICAL_LCD
+
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_hw_spi.cpp
+++ b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_hw_spi.cpp
@ -0,0 +1,138 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Based on u8g_com_LPC1768_st7920_hw_spi.c
+ *
+ * Universal 8bit Graphics Library
+ *
+ * Copyright (c) 2011, olikraus@gmail.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice, this list
+ *    of conditions and the following disclaimer.
+ *
+ *  * Redistributions in binary form must reproduce the above copyright notice, this
+ *    list of conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if HAS_GRAPHICAL_LCD
+
+#include <U8glib.h>
+#include "../../shared/HAL_SPI.h"
+#include "../../shared/Delay.h"
+
+void spiBegin();
+void spiInit(uint8_t spiRate);
+void spiSend(uint8_t b);
+void spiSend(const uint8_t* buf, size_t n);
+
+static uint8_t rs_last_state = 255;
+
+static void u8g_com_LPC1768_st7920_write_byte_hw_spi(uint8_t rs, uint8_t val) {
+
+  if (rs != rs_last_state) {      // Time to send a command/data byte
+    rs_last_state = rs;
+    spiSend(rs ? 0x0FA : 0x0F8);  // Send data or command
+    DELAY_US(40);                 // Give the controller some time: 20 is bad, 30 is OK, 40 is safe
+  }
+
+  spiSend(val & 0xF0);
+  spiSend(val << 4);
+}
+
+uint8_t u8g_com_HAL_LPC1768_ST7920_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+  switch (msg) {
+    case U8G_COM_MSG_INIT:
+      u8g_SetPILevel(u8g, U8G_PI_CS, 0);
+      u8g_SetPIOutput(u8g, U8G_PI_CS);
+      u8g_Delay(5);
+      spiBegin();
+      spiInit(SPI_EIGHTH_SPEED);            // ST7920 max speed is about 1.1 MHz
+      u8g->pin_list[U8G_PI_A0_STATE] = 0;   // initial RS state: command mode
+      break;
+
+    case U8G_COM_MSG_STOP:
+      break;
+
+    case U8G_COM_MSG_RESET:
+      u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
+      break;
+
+    case U8G_COM_MSG_ADDRESS:                   // Define cmd (arg_val = 0) or data mode (arg_val = 1)
+      u8g->pin_list[U8G_PI_A0_STATE] = arg_val;
+      break;
+
+    case U8G_COM_MSG_CHIP_SELECT:
+      u8g_SetPILevel(u8g, U8G_PI_CS, arg_val);  // Note: the ST7920 has an active high chip-select
+      break;
+
+    case U8G_COM_MSG_WRITE_BYTE:
+      u8g_com_LPC1768_st7920_write_byte_hw_spi(u8g->pin_list[U8G_PI_A0_STATE], arg_val);
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ: {
+        uint8_t *ptr = (uint8_t*) arg_ptr;
+        while (arg_val > 0) {
+          u8g_com_LPC1768_st7920_write_byte_hw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
+          arg_val--;
+        }
+      }
+      break;
+
+      case U8G_COM_MSG_WRITE_SEQ_P: {
+        uint8_t *ptr = (uint8_t*) arg_ptr;
+        while (arg_val > 0) {
+          u8g_com_LPC1768_st7920_write_byte_hw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
+          arg_val--;
+        }
+      }
+      break;
+  }
+  return 1;
+}
+
+#endif // HAS_GRAPHICAL_LCD
+
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_sw_spi.cpp
+++ b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_sw_spi.cpp
@ -0,0 +1,145 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Based on u8g_com_st7920_hw_spi.c
+ *
+ * Universal 8bit Graphics Library
+ *
+ * Copyright (c) 2011, olikraus@gmail.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice, this list
+ *    of conditions and the following disclaimer.
+ *
+ *  * Redistributions in binary form must reproduce the above copyright notice, this
+ *    list of conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if ENABLED(U8GLIB_ST7920)
+
+#include <U8glib.h>
+#include <SoftwareSPI.h>
+#include "../../shared/Delay.h"
+
+#undef SPI_SPEED
+#define SPI_SPEED 3  // About 1 MHz
+
+static pin_t SCK_pin_ST7920_HAL, MOSI_pin_ST7920_HAL_HAL;
+static uint8_t SPI_speed = 0;
+
+static void u8g_com_LPC1768_st7920_write_byte_sw_spi(uint8_t rs, uint8_t val) {
+  static uint8_t rs_last_state = 255;
+  if (rs != rs_last_state) {
+    // Transfer Data (FA) or Command (F8)
+    swSpiTransfer(rs ? 0x0FA : 0x0F8, SPI_speed, SCK_pin_ST7920_HAL, -1, MOSI_pin_ST7920_HAL_HAL);
+    rs_last_state = rs;
+    DELAY_US(40); // Give the controller time to process the data: 20 is bad, 30 is OK, 40 is safe
+  }
+  swSpiTransfer(val & 0x0F0, SPI_speed, SCK_pin_ST7920_HAL, -1, MOSI_pin_ST7920_HAL_HAL);
+  swSpiTransfer(val << 4, SPI_speed, SCK_pin_ST7920_HAL, -1, MOSI_pin_ST7920_HAL_HAL);
+}
+
+uint8_t u8g_com_HAL_LPC1768_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+  switch (msg) {
+    case U8G_COM_MSG_INIT:
+      SCK_pin_ST7920_HAL = u8g->pin_list[U8G_PI_SCK];
+      MOSI_pin_ST7920_HAL_HAL = u8g->pin_list[U8G_PI_MOSI];
+
+      u8g_SetPIOutput(u8g, U8G_PI_CS);
+      u8g_SetPIOutput(u8g, U8G_PI_SCK);
+      u8g_SetPIOutput(u8g, U8G_PI_MOSI);
+      u8g_Delay(5);
+
+      SPI_speed = swSpiInit(SPI_SPEED, SCK_pin_ST7920_HAL, MOSI_pin_ST7920_HAL_HAL);
+
+      u8g_SetPILevel(u8g, U8G_PI_CS, 0);
+      u8g_SetPILevel(u8g, U8G_PI_SCK, 0);
+      u8g_SetPILevel(u8g, U8G_PI_MOSI, 0);
+
+      u8g->pin_list[U8G_PI_A0_STATE] = 0;       /* initial RS state: command mode */
+      break;
+
+    case U8G_COM_MSG_STOP:
+      break;
+
+    case U8G_COM_MSG_RESET:
+       if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
+      break;
+
+    case U8G_COM_MSG_ADDRESS:                     /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
+      u8g->pin_list[U8G_PI_A0_STATE] = arg_val;
+      break;
+
+    case U8G_COM_MSG_CHIP_SELECT:
+      if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_CS]) u8g_SetPILevel(u8g, U8G_PI_CS, arg_val);  //note: the st7920 has an active high chip select
+      break;
+
+    case U8G_COM_MSG_WRITE_BYTE:
+      u8g_com_LPC1768_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], arg_val);
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ: {
+        uint8_t *ptr = (uint8_t*) arg_ptr;
+        while (arg_val > 0) {
+          u8g_com_LPC1768_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
+          arg_val--;
+        }
+      }
+      break;
+
+      case U8G_COM_MSG_WRITE_SEQ_P: {
+        uint8_t *ptr = (uint8_t*) arg_ptr;
+        while (arg_val > 0) {
+          u8g_com_LPC1768_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
+          arg_val--;
+        }
+      }
+      break;
+  }
+  return 1;
+}
+
+#endif // U8GLIB_ST7920
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_sw_spi.cpp
+++ b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_sw_spi.cpp
@ -0,0 +1,207 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Based on u8g_com_std_sw_spi.c
+ *
+ * Universal 8bit Graphics Library
+ *
+ * Copyright (c) 2015, olikraus@gmail.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice, this list
+ *    of conditions and the following disclaimer.
+ *
+ *  * Redistributions in binary form must reproduce the above copyright notice, this
+ *    list of conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if HAS_GRAPHICAL_LCD && DISABLED(U8GLIB_ST7920)
+
+#include <SoftwareSPI.h>
+
+#undef SPI_SPEED
+#define SPI_SPEED 2  // About 2 MHz
+
+#include <Arduino.h>
+#include <algorithm>
+#include <LPC17xx.h>
+#include <gpio.h>
+
+#include <U8glib.h>
+
+uint8_t swSpiTransfer_mode_0(uint8_t b, const uint8_t spi_speed, const pin_t sck_pin, const pin_t miso_pin, const pin_t mosi_pin ) {
+
+  for (uint8_t i = 0; i < 8; i++) {
+    if (spi_speed == 0) {
+      LPC176x::gpio_set(mosi_pin, !!(b & 0x80));
+      LPC176x::gpio_set(sck_pin, HIGH);
+      b <<= 1;
+      if (miso_pin >= 0 && LPC176x::gpio_get(miso_pin)) b |= 1;
+      LPC176x::gpio_set(sck_pin, LOW);
+    }
+    else {
+      const uint8_t state = (b & 0x80) ? HIGH : LOW;
+      for (uint8_t j = 0; j < spi_speed; j++)
+        LPC176x::gpio_set(mosi_pin, state);
+
+      for (uint8_t j = 0; j < spi_speed + (miso_pin >= 0 ? 0 : 1); j++)
+        LPC176x::gpio_set(sck_pin, HIGH);
+
+      b <<= 1;
+      if (miso_pin >= 0 && LPC176x::gpio_get(miso_pin)) b |= 1;
+
+      for (uint8_t j = 0; j < spi_speed; j++)
+        LPC176x::gpio_set(sck_pin, LOW);
+    }
+  }
+
+  return b;
+}
+
+uint8_t swSpiTransfer_mode_3(uint8_t b, const uint8_t spi_speed, const pin_t sck_pin, const pin_t miso_pin, const pin_t mosi_pin ) {
+
+  for (uint8_t i = 0; i < 8; i++) {
+    const uint8_t state = (b & 0x80) ? HIGH : LOW;
+    if (spi_speed == 0) {
+      LPC176x::gpio_set(sck_pin, LOW);
+      LPC176x::gpio_set(mosi_pin, state);
+      LPC176x::gpio_set(mosi_pin, state);  // need some setup time
+      LPC176x::gpio_set(sck_pin, HIGH);
+    }
+    else {
+      for (uint8_t j = 0; j < spi_speed + (miso_pin >= 0 ? 0 : 1); j++)
+        LPC176x::gpio_set(sck_pin, LOW);
+
+      for (uint8_t j = 0; j < spi_speed; j++)
+        LPC176x::gpio_set(mosi_pin, state);
+
+      for (uint8_t j = 0; j < spi_speed; j++)
+        LPC176x::gpio_set(sck_pin, HIGH);
+    }
+    b <<= 1;
+    if (miso_pin >= 0 && LPC176x::gpio_get(miso_pin)) b |= 1;
+  }
+
+  return b;
+}
+
+static uint8_t SPI_speed = 0;
+
+static void u8g_sw_spi_HAL_LPC1768_shift_out(uint8_t dataPin, uint8_t clockPin, uint8_t val) {
+  #if EITHER(FYSETC_MINI_12864, MKS_MINI_12864)
+    swSpiTransfer_mode_3(val, SPI_speed, clockPin, -1, dataPin);
+  #else
+    swSpiTransfer_mode_0(val, SPI_speed, clockPin, -1, dataPin);
+  #endif
+}
+
+uint8_t u8g_com_HAL_LPC1768_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+  switch (msg) {
+    case U8G_COM_MSG_INIT:
+      u8g_SetPIOutput(u8g, U8G_PI_SCK);
+      u8g_SetPIOutput(u8g, U8G_PI_MOSI);
+      u8g_SetPIOutput(u8g, U8G_PI_CS);
+      u8g_SetPIOutput(u8g, U8G_PI_A0);
+      if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPIOutput(u8g, U8G_PI_RESET);
+      SPI_speed = swSpiInit(SPI_SPEED, u8g->pin_list[U8G_PI_SCK], u8g->pin_list[U8G_PI_MOSI]);
+      u8g_SetPILevel(u8g, U8G_PI_SCK, 0);
+      u8g_SetPILevel(u8g, U8G_PI_MOSI, 0);
+      break;
+
+    case U8G_COM_MSG_STOP:
+      break;
+
+    case U8G_COM_MSG_RESET:
+      if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
+      break;
+
+    case U8G_COM_MSG_CHIP_SELECT:
+      #if EITHER(FYSETC_MINI_12864, MKS_MINI_12864)  // LCD SPI is running mode 3 while SD card is running mode 0
+        if (arg_val) {                               //   SCK idle state needs to be set to the proper idle state before
+                                                     //   the next chip select goes active
+          u8g_SetPILevel(u8g, U8G_PI_SCK, 1);        // Set SCK to mode 3 idle state before CS goes active
+          u8g_SetPILevel(u8g, U8G_PI_CS, LOW);
+        }
+        else {
+          u8g_SetPILevel(u8g, U8G_PI_CS, HIGH);
+          u8g_SetPILevel(u8g, U8G_PI_SCK, 0);  // Set SCK to mode 0 idle state after CS goes inactive
+        }
+      #else
+        u8g_SetPILevel(u8g, U8G_PI_CS, !arg_val);
+      #endif
+      break;
+
+    case U8G_COM_MSG_WRITE_BYTE:
+      u8g_sw_spi_HAL_LPC1768_shift_out(u8g->pin_list[U8G_PI_MOSI], u8g->pin_list[U8G_PI_SCK], arg_val);
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ: {
+        uint8_t *ptr = (uint8_t *)arg_ptr;
+        while (arg_val > 0) {
+          u8g_sw_spi_HAL_LPC1768_shift_out(u8g->pin_list[U8G_PI_MOSI], u8g->pin_list[U8G_PI_SCK], *ptr++);
+          arg_val--;
+        }
+      }
+      break;
+
+      case U8G_COM_MSG_WRITE_SEQ_P: {
+        uint8_t *ptr = (uint8_t *)arg_ptr;
+        while (arg_val > 0) {
+          u8g_sw_spi_HAL_LPC1768_shift_out(u8g->pin_list[U8G_PI_MOSI], u8g->pin_list[U8G_PI_SCK], u8g_pgm_read(ptr));
+          ptr++;
+          arg_val--;
+        }
+      }
+      break;
+
+    case U8G_COM_MSG_ADDRESS:                     /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
+      u8g_SetPILevel(u8g, U8G_PI_A0, arg_val);
+      break;
+  }
+  return 1;
+}
+
+#endif // HAS_GRAPHICAL_LCD && !U8GLIB_ST7920
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/upload_extra_script.py
+++ b/Marlin/src/HAL/LPC1768/upload_extra_script.py
@ -0,0 +1,145 @@
+#
+# sets output_port
+#  if target_filename is found then that drive is used
+#  else if target_drive is found then that drive is used
+#
+from __future__ import print_function
+
+target_filename = "FIRMWARE.CUR"
+target_drive = "REARM"
+
+import os
+import getpass
+import platform
+
+current_OS = platform.system()
+Import("env")
+
+def print_error(e):
+	print('\nUnable to find destination disk (%s)\n' \
+		  'Please select it in platformio.ini using the upload_port keyword ' \
+		  '(https://docs.platformio.org/en/latest/projectconf/section_env_upload.html) ' \
+		  'or copy the firmware (.pio/build/%s/firmware.bin) manually to the appropriate disk\n' \
+		  %(e, env.get('PIOENV')))
+
+try:
+	if current_OS == 'Windows':
+		#
+		# platformio.ini will accept this for a Windows upload port designation: 'upload_port = L:'
+		#   Windows - doesn't care about the disk's name, only cares about the drive letter
+		#
+
+		#
+		# get all drives on this computer
+		#
+		import subprocess
+		# typical result (string): 'Drives: C:\ D:\ E:\ F:\ G:\ H:\ I:\ J:\ K:\ L:\ M:\ Y:\ Z:\'
+		driveStr = str(subprocess.check_output("fsutil fsinfo drives"))
+		# typical result (string): 'C:\ D:\ E:\ F:\ G:\ H:\ I:\ J:\ K:\ L:\ M:\ Y:\ Z:\'
+		# driveStr = driveStr.strip().lstrip('Drives: ') <- Doesn't work in other Languages as English. In German is "Drives:" = "Laufwerke:"
+		FirstFound = driveStr.find(':',0,-1)         # Find the first ":" and
+		driveStr = driveStr[FirstFound + 1 : -1]     # truncate to the rest
+		# typical result (array of stings): ['C:\\', 'D:\\', 'E:\\', 'F:\\',
+		# 'G:\\', 'H:\\', 'I:\\', 'J:\\', 'K:\\', 'L:\\', 'M:\\', 'Y:\\', 'Z:\\']
+		drives = driveStr.split()
+
+		upload_disk = 'Disk not found'
+		target_file_found = False
+		target_drive_found = False
+		for drive in drives:
+			final_drive_name = drive.strip().rstrip('\\')   # typical result (string): 'C:'
+			try:
+				volume_info = str(subprocess.check_output('cmd /C dir ' + final_drive_name, stderr=subprocess.STDOUT))
+			except Exception as e:
+				continue
+			else:
+				if target_drive in volume_info and target_file_found == False:  # set upload if not found target file yet
+					target_drive_found = True
+					upload_disk = final_drive_name
+				if target_filename in volume_info:
+					if target_file_found == False:
+						upload_disk = final_drive_name
+					target_file_found = True
+
+		#
+		# set upload_port to drive if found
+		#
+
+		if target_file_found == True or target_drive_found == True:
+			env.Replace(
+				UPLOAD_PORT=upload_disk
+			)
+			print('upload disk: ', upload_disk)
+		else:
+			print_error('Autodetect Error')
+
+	elif current_OS == 'Linux':
+		#
+		# platformio.ini will accept this for a Linux upload port designation: 'upload_port = /media/media_name/drive'
+		#
+		upload_disk = 'Disk not found'
+		target_file_found = False
+		target_drive_found = False
+		drives = os.listdir(os.path.join(os.sep, 'media', getpass.getuser()))
+		if target_drive in drives:  # If target drive is found, use it.
+			target_drive_found = True
+			upload_disk = os.path.join(os.sep, 'media', getpass.getuser(), target_drive) + os.sep
+		else:
+			for drive in drives:
+				try:
+					files = os.listdir(os.path.join(os.sep, 'media', getpass.getuser(), drive))
+				except:
+					continue
+				else:
+					if target_filename in files:
+						upload_disk = os.path.join(os.sep, 'media', getpass.getuser(), drive) + os.sep
+						target_file_found = True
+						break
+		#
+		# set upload_port to drive if found
+		#
+
+		if target_file_found or target_drive_found:
+			env.Replace(
+				UPLOAD_FLAGS="-P$UPLOAD_PORT",
+				UPLOAD_PORT=upload_disk
+			)
+			print('upload disk: ', upload_disk)
+		else:
+			print_error('Autodetect Error')
+
+	elif current_OS == 'Darwin':  # MAC
+		#
+		# platformio.ini will accept this for a OSX upload port designation: 'upload_port = /media/media_name/drive'
+		#
+		upload_disk = 'Disk not found'
+		drives = os.listdir('/Volumes')  # human readable names
+		target_file_found = False
+		target_drive_found = False
+		if target_drive in drives and target_file_found == False:  # set upload if not found target file yet
+			target_drive_found = True
+			upload_disk = '/Volumes/' + target_drive + '/'
+		for drive in drives:
+			try:
+				filenames = os.listdir('/Volumes/' + drive + '/')   # will get an error if the drive is protected
+			except:
+				continue
+			else:
+				if target_filename in filenames:
+					if target_file_found == False:
+						upload_disk = '/Volumes/' + drive + '/'
+					target_file_found = True
+		#
+		# set upload_port to drive if found
+		#
+
+		if target_file_found == True or target_drive_found == True:
+			env.Replace(
+				UPLOAD_PORT=upload_disk
+			)
+			print('\nupload disk: ', upload_disk, '\n')
+		else:
+			print_error('Autodetect Error')
+
+except Exception as e:
+	print_error(str(e))
--- a/Marlin/src/HAL/LPC1768/usb_serial.cpp
+++ b/Marlin/src/HAL/LPC1768/usb_serial.cpp
@ -0,0 +1,37 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../inc/MarlinConfigPre.h"
+
+#if ENABLED(EMERGENCY_PARSER)
+
+#include "../../feature/e_parser.h"
+EmergencyParser::State emergency_state;
+bool CDC_RecvCallback(const char buffer) {
+  emergency_parser.update(emergency_state, buffer);
+  return true;
+}
+
+#endif // EMERGENCY_PARSER
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/watchdog.cpp
+++ b/Marlin/src/HAL/LPC1768/watchdog.cpp
@ -0,0 +1,71 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../inc/MarlinConfig.h"
+
+#if ENABLED(USE_WATCHDOG)
+
+#include <lpc17xx_wdt.h>
+#include "watchdog.h"
+
+void watchdog_init() {
+  #if ENABLED(WATCHDOG_RESET_MANUAL)
+    // We enable the watchdog timer, but only for the interrupt.
+
+    // Configure WDT to only trigger an interrupt
+    // Disable WDT interrupt (just in case, to avoid triggering it!)
+    NVIC_DisableIRQ(WDT_IRQn);
+
+    // We NEED memory barriers to ensure Interrupts are actually disabled!
+    // ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
+    __DSB();
+    __ISB();
+
+    // Configure WDT to only trigger an interrupt
+    // Initialize WDT with the given parameters
+    WDT_Init(WDT_CLKSRC_IRC, WDT_MODE_INT_ONLY);
+
+    // Configure and enable WDT interrupt.
+    NVIC_ClearPendingIRQ(WDT_IRQn);
+    NVIC_SetPriority(WDT_IRQn, 0); // Use highest priority, so we detect all kinds of lockups
+    NVIC_EnableIRQ(WDT_IRQn);
+  #else
+    WDT_Init(WDT_CLKSRC_IRC, WDT_MODE_RESET);
+  #endif
+  WDT_Start(WDT_TIMEOUT);
+}
+
+void HAL_watchdog_refresh() {
+  WDT_Feed();
+  #if DISABLED(PINS_DEBUGGING) && PIN_EXISTS(LED)
+    TOGGLE(LED_PIN);  // heartbeat indicator
+  #endif
+}
+
+// Timeout state
+bool watchdog_timed_out() { return TEST(WDT_ReadTimeOutFlag(), 0); }
+void watchdog_clear_timeout_flag() { WDT_ClrTimeOutFlag(); }
+
+#endif // USE_WATCHDOG
+#endif // TARGET_LPC1768
--- a/Marlin/src/HAL/LPC1768/watchdog.h
+++ b/Marlin/src/HAL/LPC1768/watchdog.h
@ -0,0 +1,30 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#define WDT_TIMEOUT   4000000 // 4 second timeout
+
+void watchdog_init();
+void HAL_watchdog_refresh();
+
+bool watchdog_timed_out();
+void watchdog_clear_timeout_flag();
--- a/Marlin/src/HAL/LPC1768/win_usb_driver/lpc176x_usb_driver.inf
+++ b/Marlin/src/HAL/LPC1768/win_usb_driver/lpc176x_usb_driver.inf
@ -0,0 +1,36 @@
+[Version]
+Signature="$Windows NT$"
+Class=Ports
+ClassGuid={4D36E978-E325-11CE-BFC1-08002BE10318}
+Provider=%PROVIDER%
+DriverVer =04/14/2008, 5.1.2600.5512
+
+[Manufacturer]
+%PROVIDER%=DeviceList,ntamd64
+
+
+[DeviceList]
+%DESCRIPTION%=LPC1768USB, USB\VID_1D50&PID_6029&MI_00
+
+[DeviceList.ntamd64]
+%DESCRIPTION%=LPC1768USB, USB\VID_1D50&PID_6029&MI_00
+
+
+[LPC1768USB]
+include=mdmcpq.inf
+CopyFiles=FakeModemCopyFileSection
+AddReg=LowerFilterAddReg,SerialPropPageAddReg
+
+[LPC1768USB.Services]
+include=mdmcpq.inf
+AddService=usbser, 0x00000002, LowerFilter_Service_Inst
+
+[SerialPropPageAddReg]
+HKR,,EnumPropPages32,,"MsPorts.dll,SerialPortPropPageProvider"
+
+
+[Strings]
+PROVIDER   = "marlinfw.org"
+DRIVER.SVC = "Marlin USB Driver"
+DESCRIPTION= "Marlin USB Serial"
+COMPOSITE  = "Marlin USB VCOM"