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Diffstat (limited to 'src/stm32f0/main.c')
| -rw-r--r-- | src/stm32f0/main.c | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/src/stm32f0/main.c b/src/stm32f0/main.c deleted file mode 100644 index 1a167a32..00000000 --- a/src/stm32f0/main.c +++ /dev/null @@ -1,192 +0,0 @@ -/* - * Main starting point for STM32F042 boards. - * - * Copyright (C) 2019 Eug Krashtan <eug.krashtan@gmail.com> - * This file may be distributed under the terms of the GNU GPLv3 license. - * - */ - -#include "stm32f0xx_hal.h" -#include "autoconf.h" -#include "command.h" // DECL_CONSTANT -#include "board/misc.h" // timer_read_time -#include "sched.h" // sched_main -#include "internal.h" -#include "can.h" -#include "log.h" - -DECL_CONSTANT_STR("MCU","stm32f042"); - -static IWDG_HandleTypeDef hiwdg; - -/**************************************************************** - * dynamic memory pool - ****************************************************************/ - -static char dynmem_pool[3 * 1024]; - -// Return the start of memory available for dynamic allocations -void * -dynmem_start(void) -{ - return dynmem_pool; -} - -// Return the end of memory available for dynamic allocations -void * -dynmem_end(void) -{ - return &dynmem_pool[sizeof(dynmem_pool)]; -} - -/**************************************************************** - * misc functions - ****************************************************************/ - -void -command_reset(uint32_t *args) -{ - NVIC_SystemReset(); -} -DECL_COMMAND_FLAGS(command_reset, HF_IN_SHUTDOWN, "reset"); - -void clock_config(void) -{ - RCC_OscInitTypeDef RCC_OscInitStruct = {0}; - RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; - RCC_PeriphCLKInitTypeDef PeriphClkInit = {0}; - - /**Initializes the CPU, AHB and APB busses clocks - */ - RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI - |RCC_OSCILLATORTYPE_HSI14|RCC_OSCILLATORTYPE_HSI48 - |RCC_OSCILLATORTYPE_LSI; - RCC_OscInitStruct.HSIState = RCC_HSI_ON; - RCC_OscInitStruct.HSI48State = RCC_HSI48_ON; - RCC_OscInitStruct.HSI14State = RCC_HSI14_ON; - RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT; - RCC_OscInitStruct.HSI14CalibrationValue = 16; - RCC_OscInitStruct.LSIState = RCC_LSI_ON; - RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; - HAL_RCC_OscConfig(&RCC_OscInitStruct); - - /**Initializes the CPU, AHB and APB busses clocks - */ - RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK - |RCC_CLOCKTYPE_PCLK1; - RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI48; - RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; - RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1; - HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1); - - PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_I2C1|RCC_PERIPHCLK_RTC; - PeriphClkInit.I2c1ClockSelection = RCC_I2C1CLKSOURCE_HSI; - HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit); -} - -void -watchdog_reset(void) -{ - HAL_IWDG_Refresh(&hiwdg); -} -DECL_TASK(watchdog_reset); - -void -watchdog_init(void) -{ - hiwdg.Instance = IWDG; - hiwdg.Init.Prescaler = IWDG_PRESCALER_16; - hiwdg.Init.Window = 4095; - hiwdg.Init.Reload = 4095; - //HAL_IWDG_Init(&hiwdg); ToDo enable after debug -} -DECL_INIT(watchdog_init); - -// Main entry point -int -main(void) -{ - HAL_Init(); - - clock_config(); - gpio_init(); -#if (CONFIG_DEBUG_OUT) - LogInit(); -#endif - sched_main(); - return 0; -} - -void __attribute__((weak)) lprint(char *msg) {} -void __attribute__((weak)) lnprint(char *msg, size_t len) {} - -/* - * MSP init functions ( __weak replacement ) - */ - -/* - * Initializes the Global MSP. - */ -void HAL_MspInit(void) -{ - __HAL_RCC_SYSCFG_CLK_ENABLE(); - __HAL_RCC_PWR_CLK_ENABLE(); - __HAL_RCC_WWDG_CLK_ENABLE(); -} - -/**************************************************************** - * Debug helper (taken from https://community.arm.com/) - * In case of Hard Fault it helps to find fault reason - * on Cortex-M0 chips - ****************************************************************/ - -void hard_fault_handler_c(unsigned long *hardfault_args){ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wunused-but-set-variable" - volatile unsigned long stacked_r0 ; - volatile unsigned long stacked_r1 ; - volatile unsigned long stacked_r2 ; - volatile unsigned long stacked_r3 ; - volatile unsigned long stacked_r12 ; - volatile unsigned long stacked_lr ; - volatile unsigned long stacked_pc ; - volatile unsigned long stacked_psr ; - volatile unsigned long _CFSR ; - volatile unsigned long _HFSR ; - volatile unsigned long _DFSR ; - volatile unsigned long _AFSR ; - volatile unsigned long _BFAR ; - volatile unsigned long _MMAR ; - - stacked_r0 = ((unsigned long)hardfault_args[0]) ; - stacked_r1 = ((unsigned long)hardfault_args[1]) ; - stacked_r2 = ((unsigned long)hardfault_args[2]) ; - stacked_r3 = ((unsigned long)hardfault_args[3]) ; - stacked_r12 = ((unsigned long)hardfault_args[4]) ; - stacked_lr = ((unsigned long)hardfault_args[5]) ; - stacked_pc = ((unsigned long)hardfault_args[6]) ; - stacked_psr = ((unsigned long)hardfault_args[7]) ; - - // Configurable Fault Status Register - // Consists of MMSR, BFSR and UFSR - _CFSR = (*((volatile unsigned long *)(0xE000ED28))) ; - - // Hard Fault Status Register - _HFSR = (*((volatile unsigned long *)(0xE000ED2C))) ; - - // Debug Fault Status Register - _DFSR = (*((volatile unsigned long *)(0xE000ED30))) ; - - // Auxiliary Fault Status Register - _AFSR = (*((volatile unsigned long *)(0xE000ED3C))) ; - - // 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 - _MMAR = (*((volatile unsigned long *)(0xE000ED34))) ; - // Bus Fault Address Register - _BFAR = (*((volatile unsigned long *)(0xE000ED38))) ; - - __asm("BKPT #0\n") ; // Break into the debugger -#pragma GCC diagnostic pop -} |