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Marlin_Firmware/Marlin/src/HAL/HAL_STM32F1/HAL.cpp

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/**
* Marlin 3D Printer Firmware
*
* Copyright (C) 2016 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) 2017 Victor Perez
*
* 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 for stm32duino.com based on Libmaple and compatible (STM32F1)
*/
#ifdef __STM32F1__
// --------------------------------------------------------------------------
// Includes
// --------------------------------------------------------------------------
#include "HAL.h"
#include <STM32ADC.h>
// --------------------------------------------------------------------------
// Externals
// --------------------------------------------------------------------------
// --------------------------------------------------------------------------
// Types
// --------------------------------------------------------------------------
#define __I
#define __IO
typedef struct
{
__I uint32_t CPUID; /*!< Offset: 0x000 (R/ ) CPUID Base Register */
__IO uint32_t ICSR; /*!< Offset: 0x004 (R/W) Interrupt Control and State Register */
__IO uint32_t VTOR; /*!< Offset: 0x008 (R/W) Vector Table Offset Register */
__IO uint32_t AIRCR; /*!< Offset: 0x00C (R/W) Application Interrupt and Reset Control Register */
__IO uint32_t SCR; /*!< Offset: 0x010 (R/W) System Control Register */
__IO uint32_t CCR; /*!< Offset: 0x014 (R/W) Configuration Control Register */
__IO uint8_t SHP[12]; /*!< Offset: 0x018 (R/W) System Handlers Priority Registers (4-7, 8-11, 12-15) */
__IO uint32_t SHCSR; /*!< Offset: 0x024 (R/W) System Handler Control and State Register */
__IO uint32_t CFSR; /*!< Offset: 0x028 (R/W) Configurable Fault Status Register */
__IO uint32_t HFSR; /*!< Offset: 0x02C (R/W) HardFault Status Register */
__IO uint32_t DFSR; /*!< Offset: 0x030 (R/W) Debug Fault Status Register */
__IO uint32_t MMFAR; /*!< Offset: 0x034 (R/W) MemManage Fault Address Register */
__IO uint32_t BFAR; /*!< Offset: 0x038 (R/W) BusFault Address Register */
__IO uint32_t AFSR; /*!< Offset: 0x03C (R/W) Auxiliary Fault Status Register */
__I uint32_t PFR[2]; /*!< Offset: 0x040 (R/ ) Processor Feature Register */
__I uint32_t DFR; /*!< Offset: 0x048 (R/ ) Debug Feature Register */
__I uint32_t ADR; /*!< Offset: 0x04C (R/ ) Auxiliary Feature Register */
__I uint32_t MMFR[4]; /*!< Offset: 0x050 (R/ ) Memory Model Feature Register */
__I uint32_t ISAR[5]; /*!< Offset: 0x060 (R/ ) Instruction Set Attributes Register */
uint32_t RESERVED0[5];
__IO uint32_t CPACR; /*!< Offset: 0x088 (R/W) Coprocessor Access Control Register */
} SCB_Type;
// --------------------------------------------------------------------------
// Variables
// --------------------------------------------------------------------------
// --------------------------------------------------------------------------
// Local defines
// --------------------------------------------------------------------------
#define SCS_BASE (0xE000E000UL) /*!< System Control Space Base Address */
#define SCB_BASE (SCS_BASE + 0x0D00UL) /*!< System Control Block Base Address */
#define SCB ((SCB_Type *) SCB_BASE ) /*!< SCB configuration struct */
/* SCB Application Interrupt and Reset Control Register Definitions */
#define SCB_AIRCR_VECTKEY_Pos 16 /*!< SCB AIRCR: VECTKEY Position */
#define SCB_AIRCR_VECTKEY_Msk (0xFFFFUL << SCB_AIRCR_VECTKEY_Pos) /*!< SCB AIRCR: VECTKEY Mask */
#define SCB_AIRCR_PRIGROUP_Pos 8 /*!< SCB AIRCR: PRIGROUP Position */
#define SCB_AIRCR_PRIGROUP_Msk (7UL << SCB_AIRCR_PRIGROUP_Pos) /*!< SCB AIRCR: PRIGROUP Mask */
// --------------------------------------------------------------------------
// Public Variables
// --------------------------------------------------------------------------
USBSerial SerialUSB;
uint16_t HAL_adc_result;
// --------------------------------------------------------------------------
// Private Variables
// --------------------------------------------------------------------------
STM32ADC adc(ADC1);
uint8 adc_pins[] = {
#if HAS_TEMP_0
TEMP_0_PIN,
#endif
#if HAS_TEMP_1
TEMP_1_PIN
#endif
#if HAS_TEMP_2
TEMP_2_PIN,
#endif
#if HAS_TEMP_3
TEMP_3_PIN,
#endif
#if HAS_TEMP_4
TEMP_4_PIN,
#endif
#if HAS_HEATED_BED
TEMP_BED_PIN,
#endif
#if ENABLED(FILAMENT_WIDTH_SENSOR)
FILWIDTH_PIN,
#endif
};
enum TEMP_PINS : char {
#if HAS_TEMP_0
TEMP_0,
#endif
#if HAS_TEMP_1
TEMP_1,
#endif
#if HAS_TEMP_2
TEMP_2,
#endif
#if HAS_TEMP_3
TEMP_3,
#endif
#if HAS_TEMP_4
TEMP_4,
#endif
#if HAS_HEATED_BED
TEMP_BED,
#endif
#if ENABLED(FILAMENT_WIDTH_SENSOR)
FILWIDTH,
#endif
ADC_PIN_COUNT
};
uint16_t HAL_adc_results[ADC_PIN_COUNT];
// --------------------------------------------------------------------------
// Function prototypes
// --------------------------------------------------------------------------
// --------------------------------------------------------------------------
// Private functions
// --------------------------------------------------------------------------
static void NVIC_SetPriorityGrouping(uint32_t PriorityGroup) {
uint32_t reg_value;
uint32_t PriorityGroupTmp = (PriorityGroup & (uint32_t)0x07); /* only values 0..7 are used */
reg_value = SCB->AIRCR; /* read old register configuration */
reg_value &= ~(SCB_AIRCR_VECTKEY_Msk | SCB_AIRCR_PRIGROUP_Msk); /* clear bits to change */
reg_value = (reg_value |
((uint32_t)0x5FA << SCB_AIRCR_VECTKEY_Pos) |
(PriorityGroupTmp << 8)); /* Insert write key and priorty group */
SCB->AIRCR = reg_value;
}
// --------------------------------------------------------------------------
// Public functions
// --------------------------------------------------------------------------
void HAL_init(void) {
NVIC_SetPriorityGrouping(0x3);
}
/* VGPV Done with defines
// disable interrupts
void cli(void) { noInterrupts(); }
// enable interrupts
void sei(void) { interrupts(); }
*/
void HAL_clear_reset_source(void) { }
/**
* TODO: Check this and change or remove.
* currently returns 1 that's equal to poweron reset.
*/
uint8_t HAL_get_reset_source(void) { return 1; }
void _delay_ms(const int delay_ms) { delay(delay_ms); }
extern "C" {
extern unsigned int _ebss; // end of bss section
}
/**
* TODO: Change this to correct it for libmaple
*/
// return free memory between end of heap (or end bss) and whatever is current
/*
#include "wirish/syscalls.c"
//extern caddr_t _sbrk(int incr);
#ifndef CONFIG_HEAP_END
extern char _lm_heap_end;
#define CONFIG_HEAP_END ((caddr_t)&_lm_heap_end)
#endif
extern "C" {
static int freeMemory() {
char top = 't';
return &top - reinterpret_cast<char*>(sbrk(0));
}
int freeMemory() {
int free_memory;
int heap_end = (int)_sbrk(0);
free_memory = ((int)&free_memory) - ((int)heap_end);
return free_memory;
}
}
*/
// --------------------------------------------------------------------------
// ADC
// --------------------------------------------------------------------------
// Init the AD in continuous capture mode
void HAL_adc_init(void) {
// configure the ADC
adc.calibrate();
adc.setSampleRate(ADC_SMPR_41_5); // ?
adc.setPins(adc_pins, ADC_PIN_COUNT);
adc.setDMA(HAL_adc_results, (uint16_t)ADC_PIN_COUNT, (uint32_t)(DMA_MINC_MODE | DMA_CIRC_MODE), (void (*)())NULL);
adc.setScanMode();
adc.setContinuous();
adc.startConversion();
}
void HAL_adc_start_conversion(const uint8_t adc_pin) {
TEMP_PINS pin_index;
switch (adc_pin) {
#if HAS_TEMP_0
case TEMP_0_PIN: pin_index = TEMP_0; break;
#endif
#if HAS_TEMP_1
case TEMP_1_PIN: pin_index = TEMP_1; break;
#endif
#if HAS_TEMP_2
case TEMP_2_PIN: pin_index = TEMP_2; break;
#endif
#if HAS_TEMP_3
case TEMP_3_PIN: pin_index = TEMP_3; break;
#endif
#if HAS_TEMP_4
case TEMP_4_PIN: pin_index = TEMP_4; break;
#endif
#if HAS_HEATED_BED
case TEMP_BED_PIN: pin_index = TEMP_BED; break;
#endif
#if ENABLED(FILAMENT_WIDTH_SENSOR)
case FILWIDTH_PIN: pin_index = FILWIDTH; break;
#endif
}
HAL_adc_result = (HAL_adc_results[(int)pin_index] >> 2) & 0x3FF; // shift to get 10 bits only.
}
uint16_t HAL_adc_get_result(void) {
return HAL_adc_result;
}
#endif // __STM32F1__
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