Firmware2/Marlin/src/HAL/HAL_STM32/HAL.cpp

139 lines
3.8 KiB
C++

/**
* Marlin 3D Printer Firmware
*
* Copyright (c) 2019 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/>.
*
*/
#if defined(ARDUINO_ARCH_STM32) && !defined(STM32GENERIC)
#include "HAL.h"
#include "../../inc/MarlinConfig.h"
#include "../shared/Delay.h"
#if TMC_HAS_SW_SERIAL
#include "SoftwareSerial.h"
#endif
#if ENABLED(SRAM_EEPROM_EMULATION)
#if STM32F7xx
#include <stm32f7xx_ll_pwr.h>
#elif STM32F4xx
#include <stm32f4xx_ll_pwr.h>
#else
#error "SRAM_EEPROM_EMULATION is currently only supported for STM32F4xx and STM32F7xx"
#endif
#endif
// ------------------------
// Public Variables
// ------------------------
uint16_t HAL_adc_result;
// ------------------------
// Public functions
// ------------------------
// Needed for DELAY_NS() / DELAY_US() on CORTEX-M7
#if (defined(__arm__) || defined(__thumb__)) && __CORTEX_M == 7
// HAL pre-initialization task
// Force the preinit function to run between the premain() and main() function
// of the STM32 arduino core
__attribute__((constructor (102)))
void HAL_preinit() {
enableCycleCounter();
}
#endif
// HAL initialization task
void HAL_init() {
FastIO_init();
#if ENABLED(SDSUPPORT)
OUT_WRITE(SDSS, HIGH); // Try to set SDSS inactive before any other SPI users start up
#endif
#if PIN_EXISTS(LED)
OUT_WRITE(LED_PIN, LOW);
#endif
#if ENABLED(SRAM_EEPROM_EMULATION)
// Enable access to backup SRAM
__HAL_RCC_PWR_CLK_ENABLE();
HAL_PWR_EnableBkUpAccess();
__HAL_RCC_BKPSRAM_CLK_ENABLE();
// Enable backup regulator
LL_PWR_EnableBkUpRegulator();
// Wait until backup regulator is initialized
while (!LL_PWR_IsActiveFlag_BRR());
#endif // EEPROM_EMULATED_SRAM
#if TMC_HAS_SW_SERIAL
SoftwareSerial::setInterruptPriority(SWSERIAL_TIMER_IRQ_PRIO, 0);
#endif
}
void HAL_clear_reset_source() { __HAL_RCC_CLEAR_RESET_FLAGS(); }
uint8_t HAL_get_reset_source() {
return
#ifdef RCC_FLAG_IWDGRST // Some sources may not exist...
RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_IWDGRST) ? RST_WATCHDOG :
#endif
#ifdef RCC_FLAG_IWDG1RST
RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_IWDG1RST) ? RST_WATCHDOG :
#endif
#ifdef RCC_FLAG_IWDG2RST
RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_IWDG2RST) ? RST_WATCHDOG :
#endif
#ifdef RCC_FLAG_SFTRST
RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_SFTRST) ? RST_SOFTWARE :
#endif
#ifdef RCC_FLAG_PINRST
RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_PINRST) ? RST_EXTERNAL :
#endif
#ifdef RCC_FLAG_PORRST
RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_PORRST) ? RST_POWER_ON :
#endif
0
;
}
void _delay_ms(const int delay_ms) { delay(delay_ms); }
extern "C" {
extern unsigned int _ebss; // end of bss section
}
// ------------------------
// ADC
// ------------------------
// TODO: Make sure this doesn't cause any delay
void HAL_adc_start_conversion(const uint8_t adc_pin) { HAL_adc_result = analogRead(adc_pin); }
uint16_t HAL_adc_get_result() { return HAL_adc_result; }
void flashFirmware(int16_t) { NVIC_SystemReset(); }
#endif // ARDUINO_ARCH_STM32 && !STM32GENERIC