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M355 S0, S1 fixes & faster LCD, SD card

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fix Travis error
This commit is contained in:
Christopher Pepper
2017-06-18 00:36:10 +01:00
committed by Bob-the-Kuhn
parent 8c622a59cf
commit bea3ec2724
19 changed files with 515 additions and 219 deletions
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204
Marlin/src/HAL/HAL_LPC1768/HAL_spi.cpp
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@ -1,6 +1,6 @@
/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
* Copyright (C) 2016, 2017 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
@ -30,13 +30,32 @@
* 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
// --------------------------------------------------------------------------
// Includes
// --------------------------------------------------------------------------
#include "../../inc/MarlinConfig.h"
//#include "../../../MarlinConfig.h" //works except in U8g
#include "spi_pins.h"
#include "fastio.h"
// --------------------------------------------------------------------------
// Public Variables
@ -47,87 +66,122 @@
// Public functions
// --------------------------------------------------------------------------
#if ENABLED(SOFTWARE_SPI)
#if ENABLED(LPC_SOFTWARE_SPI)
// --------------------------------------------------------------------------
// software SPI
// --------------------------------------------------------------------------
// bitbanging transfer
// run at ~100KHz (necessary for init)
static uint8_t spiTransfer(uint8_t b) { // using Mode 0
for (int bits = 0; bits < 8; bits++) {
if (b & 0x80) {
WRITE(MOSI_PIN, HIGH);
}
else {
WRITE(MOSI_PIN, LOW);
}
b <<= 1;
WRITE(SCK_PIN, HIGH);
delayMicroseconds(3U);
/**
* This software SPI runs at three rates. The SD software provides an index
* (spiRate) of 0-6. The mapping is:
* 0-1 - about 5 MHz peak
* 2-3 - about 2 MHz peak
* all others - about 250 KHz
*/
if (READ(MISO_PIN)) {
b |= 1;
static uint8_t SPI_speed = 0;
static uint8_t spiTransfer(uint8_t b) {
if (!SPI_speed) { // fastest - about 5 MHz peak
for (int bits = 0; bits < 8; bits++) {
if (b & 0x80) {
WRITE(MOSI_PIN, HIGH);
WRITE(MOSI_PIN, HIGH); // delay to (hopefully) guarantee setup time
}
else {
WRITE(MOSI_PIN, LOW);
WRITE(MOSI_PIN, LOW); // delay to (hopefully) guarantee setup time
}
b <<= 1;
WRITE(SCK_PIN, HIGH);
if (READ(MISO_PIN)) {
b |= 1;
}
WRITE(SCK_PIN, LOW);
}
}
else if (SPI_speed == 1) { // medium - about 1 MHz
for (int bits = 0; bits < 8; bits++) {
if (b & 0x80) {
for (uint8_t i = 0; i < 8; i++) WRITE(MOSI_PIN, HIGH);
}
else {
for (uint8_t i = 0; i < 8; i++) WRITE(MOSI_PIN, LOW);
}
b <<= 1;
for (uint8_t i = 0; i < 6; i++) WRITE(SCK_PIN, HIGH);
if (READ(MISO_PIN)) {
b |= 1;
}
WRITE(SCK_PIN, LOW);
}
}
else { // slow - about 250 KHz
for (int bits = 0; bits < 8; bits++) {
if (b & 0x80) {
WRITE(MOSI_PIN, HIGH);
}
else {
WRITE(MOSI_PIN, LOW);
}
b <<= 1;
delayMicroseconds(1U);
WRITE(SCK_PIN, HIGH);
delayMicroseconds(2U);
if (READ(MISO_PIN)) {
b |= 1;
}
WRITE(SCK_PIN, LOW);
delayMicroseconds(1U);
}
WRITE(SCK_PIN, LOW);
delayMicroseconds(3U);
}
return b;
}
void spiBegin() {
SET_OUTPUT(SS_PIN);
WRITE(SS_PIN, HIGH);
SET_OUTPUT(SCK_PIN);
SET_INPUT(MISO_PIN);
SET_OUTPUT(MOSI_PIN);
}
void spiInit(uint8_t spiRate) {
UNUSED(spiRate);
WRITE(SS_PIN, HIGH);
SPI_speed = spiRate >> 1;
WRITE(MOSI_PIN, HIGH);
WRITE(SCK_PIN, LOW);
}
uint8_t spiRec() {
WRITE(SS_PIN, LOW);
uint8_t b = spiTransfer(0xff);
WRITE(SS_PIN, HIGH);
return b;
}
void spiRead(uint8_t*buf, uint16_t nbyte) {
if (nbyte == 0) return;
WRITE(SS_PIN, LOW);
for (int i = 0; i < nbyte; i++) {
buf[i] = spiTransfer(0xff);
}
WRITE(SS_PIN, HIGH);
}
void spiSend(uint8_t b) {
WRITE(SS_PIN, LOW);
uint8_t response = spiTransfer(b);
UNUSED(response);
WRITE(SS_PIN, HIGH);
}
static void spiSend(const uint8_t* buf, size_t n) {
uint8_t response;
if (n == 0) return;
WRITE(SS_PIN, LOW);
for (uint16_t i = 0; i < n; i++) {
response = spiTransfer(buf[i]);
}
UNUSED(response);
WRITE(SS_PIN, HIGH);
}
void spiSendBlock(uint8_t token, const uint8_t* buf) {
uint8_t response;
WRITE(SS_PIN, LOW);
response = spiTransfer(token);
for (uint16_t i = 0; i < 512; i++) {
@ -136,29 +190,97 @@
UNUSED(response);
WRITE(SS_PIN, HIGH);
}
#else
void spiBegin() {
// hardware SPI
#include <lpc17xx_pinsel.h>
#include <lpc17xx_ssp.h>
#include <lpc17xx_clkpwr.h>
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 = pin_map[SCK_PIN].pin;
PinCfg.Portnum = pin_map[SCK_PIN].port;
PINSEL_ConfigPin(&PinCfg);
SET_OUTPUT(SCK_PIN);
PinCfg.Pinnum = pin_map[MISO_PIN].pin;
PinCfg.Portnum = pin_map[MISO_PIN].port;
PINSEL_ConfigPin(&PinCfg);
SET_INPUT(MISO_PIN);
PinCfg.Pinnum = pin_map[MOSI_PIN].pin;
PinCfg.Portnum = pin_map[MOSI_PIN].port;
PINSEL_ConfigPin(&PinCfg);
SET_OUTPUT(MOSI_PIN);
}
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
// select 50MHz PCLK for SSP0
CLKPWR_SetPCLKDiv(CLKPWR_PCLKSEL_SSP0, CLKPWR_PCLKSEL_CCLK_DIV_2);
// 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
SSP_Init(LPC_SSP0, &HW_SPI_init); // puts the values into the proper bits in the SSP0 registers
SSP_Cmd(LPC_SSP0, ENABLE); // start SSP0 running
}
void spiSend(byte b) {
void spiSend(uint8_t b) {
while (!SSP_GetStatus(LPC_SSP0, SSP_STAT_TXFIFO_NOTFULL)); // wait for room in the buffer
SSP_SendData(LPC_SSP0, b & 0x00FF);
while (SSP_GetStatus(LPC_SSP0, SSP_STAT_BUSY)); // wait for it to finish
}
void spiSend(const uint8_t* buf, size_t n) {
if (n == 0) return;
for (uint16_t i = 0; i < n; i++) {
while (!SSP_GetStatus(LPC_SSP0, SSP_STAT_TXFIFO_NOTFULL)); // wait for room in the buffer
SSP_SendData(LPC_SSP0, buf[i] & 0x00FF);
}
while (SSP_GetStatus(LPC_SSP0, SSP_STAT_BUSY)); // wait for it to finish
}
void spiSend(uint32_t chan, byte b) {
}
void spiSend(uint32_t chan, const uint8_t* buf, size_t n) {
}
uint8_t get_one_byte() {
// send a dummy byte so can clock in receive data
SSP_SendData(LPC_SSP0,0x00FF);
while (SSP_GetStatus(LPC_SSP0, SSP_STAT_BUSY)); // wait for it to finish
return SSP_ReceiveData(LPC_SSP0) & 0x00FF;
}
// Read single byte from SPI
uint8_t spiRec() {
return 0;
while (SSP_GetStatus(LPC_SSP0, SSP_STAT_RXFIFO_NOTEMPTY) || SSP_GetStatus(LPC_SSP0, SSP_STAT_BUSY)) SSP_ReceiveData(LPC_SSP0); //flush the receive buffer
return get_one_byte();
}
uint8_t spiRec(uint32_t chan) {
@ -167,11 +289,17 @@
// Read from SPI into buffer
void spiRead(uint8_t*buf, uint16_t nbyte) {
while (SSP_GetStatus(LPC_SSP0, SSP_STAT_RXFIFO_NOTEMPTY) || SSP_GetStatus(LPC_SSP0, SSP_STAT_BUSY)) SSP_ReceiveData(LPC_SSP0); //flush the receive buffer
if (nbyte == 0) return;
for (int i = 0; i < nbyte; i++) {
buf[i] = get_one_byte();
}
}
// Write from buffer to SPI
void spiSendBlock(uint8_t token, const uint8_t* buf) {
}
#endif // ENABLED(SOFTWARE_SPI)
#endif // ENABLED(LPC_SOFTWARE_SPI)
#endif // TARGET_LPC1768

10
Marlin/src/HAL/HAL_LPC1768/LPC1768_PWM.h
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@ -399,6 +399,16 @@ bool LPC1768_PWM_detach_pin(uint8_t pin) {
return 1;
}
bool useable_hardware_PWM(uint8_t pin) {
COPY_ACTIVE_TABLE; // copy active table into work table
for (uint8_t i = 0; i < NUM_PWMS; i++) // see if it's already setup
if (work_table[i].logical_pin == pin && work_table[i].sequence) return true;
for (uint8_t i = 0; i < NUM_PWMS; i++) // see if there is an empty slot
if (!work_table[i].sequence) return true;
return false; // only get here if neither the above are true
}
////////////////////////////////////////////////////////////////////////////////
#define HAL_PWM_LPC1768_ISR extern "C" void PWM1_IRQHandler(void)

3
Marlin/src/HAL/HAL_LPC1768/fastio.h
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@ -38,6 +38,9 @@
#include "arduino.h"
#include "pinmapping.h"
bool useable_hardware_PWM(uint8_t pin);
#define USEABLE_HARDWARE_PWM(pin) useable_hardware_PWM(pin)
#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))

9
Marlin/src/HAL/HAL_LPC1768/spi_pins.h
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@ -23,7 +23,8 @@
#ifndef SPI_PINS_LPC1768_H
#define SPI_PINS_LPC1768_H
#define SOFTWARE_SPI
#define LPC_SOFTWARE_SPI
/** onboard SD card */
//#define SCK_PIN P0_7
//#define MISO_PIN P0_8
@ -34,4 +35,10 @@
#define MISO_PIN 50 //P0_17
#define MOSI_PIN 51 //P0_18
#define SS_PIN 53 //P1_23
#define SDSS SS_PIN
#if (defined(IS_REARM) && !(defined(LPC_SOFTWARE_SPI))) // signal LCDs that they need to use the hardware SPI
#define SHARED_SPI
#endif
#endif /* SPI_PINS_LPC1768_H */