前言
继续看STM32H743I-EVAL2的官方dmeo.
现在看完了RTC_Alarm.
这个demo有用，可以设置RTC时钟的当前年月日时分秒，然后设定几点几分产生告警事件。
这相当于闹钟了。
到了定时的超时时间，在警告事件函数中中响应告警事件。
试验
用CubeMx重建一个工程，用来作RTC告警的试验工程。
选择MCU选择器开始向导。
MCU选STM32H743XIHx。
在引脚配置中，找到Timer页下的RTC, 点击选中。右边会出现RTC设置对话框页面。
将时钟源激活，日历激活选上，选择告警事件A(内部告警A)生效。
将RTC的NVIC中的告警回调函数勾选一下，否则没有RTC_Alarm_IRQHandler()中HAL_RTC_AlarmIRQHandler的调用。
将产生代码的选项设置一下，可以产生工程模板了。
但是CubeMx生成的框架代码，并没有设置可用的计时器超时回调函数。
这部分，要参考官方板子的实现。在设置的时候，还是有点细节要注意。
这个超时值，必须设置成周几几点几分几秒。
超时回调的调用链如下：
RTC_Alarm_IRQHandler() => HAL_RTC_AlarmIRQHandler() => HAL_RTC_AlarmAEventCallback()
HAL库为了能编译过，带了一个弱函数 HAL_RTC_AlarmAEventCallback（）, 我们自己重写一个正常的HAL_RTC_AlarmAEventCallback()来响应RTC告警。
这样程序跑起来后，40秒记时时，就会进入HAL_RTC_AlarmAEventCallback().
/**
* @brief This function handles RTC alarms (A and B) interrupt through EXTI line 17.
*/
void RTC_Alarm_IRQHandler(void)
{
/* USER CODE BEGIN RTC_Alarm_IRQn 0 */
/* USER CODE END RTC_Alarm_IRQn 0 */
HAL_RTC_AlarmIRQHandler(&hrtc);
/* USER CODE BEGIN RTC_Alarm_IRQn 1 */
/* USER CODE END RTC_Alarm_IRQn 1 */
}
/**
* @brief Handle Alarm interrupt request.
* @param hrtc RTC handle
* @retval None
*/
void HAL_RTC_AlarmIRQHandler(RTC_HandleTypeDef *hrtc)
{
/* Clear the EXTI's line Flag for RTC Alarm */
#if defined(DUAL_CORE)
if(HAL_GetCurrentCPUID() == CM7_CPUID)
{
__HAL_RTC_ALARM_EXTI_CLEAR_FLAG();
}
else
{
__HAL_RTC_ALARM_EXTID2_CLEAR_FLAG();
}
#else /* SINGLE_CORE */
__HAL_RTC_ALARM_EXTI_CLEAR_FLAG();
#endif /* DUAL_CORE */
#if defined(RTC_MISR_ALRAMF)
/* Get interrupt status */
uint32_t tmp = hrtc->Instance->MISR;
if((tmp & RTC_MISR_ALRAMF) != 0u)
{
/* Clear the AlarmA interrupt pending bit */
hrtc->Instance->SCR = RTC_SCR_CALRAF;
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Compare Match registered Callback */
hrtc->AlarmAEventCallback(hrtc);
#else /* (USE_HAL_RTC_REGISTER_CALLBACKS == 1) */
HAL_RTC_AlarmAEventCallback(hrtc);
#endif /* (USE_HAL_RTC_REGISTER_CALLBACKS == 1) */
}
#endif /* RTC_MISR_ALRAMF */
#if defined(RTC_MISR_ALRBMF)
if((tmp & RTC_MISR_ALRBMF) != 0u)
{
/* Clear the AlarmB interrupt pending bit */
hrtc->Instance->SCR = RTC_SCR_CALRBF;
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Compare Match registered Callback */
hrtc->AlarmBEventCallback(hrtc);
#else /* (USE_HAL_RTC_REGISTER_CALLBACKS == 1) */
HAL_RTCEx_AlarmBEventCallback(hrtc);
#endif /* (USE_HAL_RTC_REGISTER_CALLBACKS == 1) */
}
#endif /* RTC_MISR_ALRBMF */
#if defined(RTC_ISR_ALRAF)
/* Get the AlarmA interrupt source enable status */
if(__HAL_RTC_ALARM_GET_IT_SOURCE(hrtc, RTC_IT_ALRA) != 0U)
{
/* Get the pending status of the AlarmA Interrupt */
if(__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRAF) != 0U)
{
/* Clear the AlarmA interrupt pending bit */
__HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRAF);
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
hrtc->AlarmAEventCallback(hrtc);
#else /* (USE_HAL_RTC_REGISTER_CALLBACKS == 1) */
HAL_RTC_AlarmAEventCallback(hrtc);
#endif /* (USE_HAL_RTC_REGISTER_CALLBACKS == 1) */
}
}
#endif /* RTC_ISR_ALRAF */
#if defined(RTC_ISR_ALRBF)
/* Get the AlarmB interrupt source enable status */
if(__HAL_RTC_ALARM_GET_IT_SOURCE(hrtc, RTC_IT_ALRB) != 0U)
{
/* Get the pending status of the AlarmB Interrupt */
if(__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRBF) != 0U)
{
/* Clear the AlarmB interrupt pending bit */
__HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRBF);
/* AlarmB callback */
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
hrtc->AlarmBEventCallback(hrtc);
#else /* (USE_HAL_RTC_REGISTER_CALLBACKS == 1) */
HAL_RTCEx_AlarmBEventCallback(hrtc);
#endif /* (USE_HAL_RTC_REGISTER_CALLBACKS == 1) */
}
}
#endif /* RTC_ISR_ALRBF */
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
}
void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
// 周6(2020/1/25)的20:30:40 告警事件发生，进入HAL_RTC_AlarmAEventCallback
UNUSED(hrtc);
RTC_TimeShow(sz_rtc_time_cur);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTC_AlarmAEventCallback could be implemented in the user file
*/
}
需要注意的细节
- assert_failed() 要打开，否则设置RTC超时时，一开始不熟，可能会有参数设置错。参数设置错了，自然功能不好使。
- Error_Handler() 要下断点，因为有时重新插拔官方板子板载STLINK3的USB口，换到另外一个工程调试，也会在设置RTC时失败，必须重新插拔电源才行。如果程序函数执行失败进入了Error_Handler()死循环，而自己还在傻傻的等，那就笑死了:P
- 用CubeMx生成的工程框架，会带一些魔法数，看不懂含义。而官方板子的demo, 会将这些魔法数换成宏，这样就好理解多了。其实这些宏应该是在HAL库定义的，而不是在应用层的用户代码区定义。估计以后，更新的新版HAL库应该会包含这些宏。
用CubeMx重建的试验工程预览
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2020 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include <stdlib.h>
#include <stdio.h>
#include "main.h"
#include "rtc.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
static uint8_t sz_showtime[60] = {'\0'};
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_RTC_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
HAL_Delay(100);
RTC_TimeShow(sz_showtime);
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
/** Supply configuration update enable
*/
HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
/** Configure the main internal regulator output voltage
*/
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}
/** Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_LSI;
RCC_OscInitStruct.HSIState = RCC_HSI_DIV1;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB busses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2
|RCC_CLOCKTYPE_D3PCLK1|RCC_CLOCKTYPE_D1PCLK1;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV1;
RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
/* USER CODE END Error_Handler_Debug */
__IO int i = 0;
UNUSED(i);
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
__IO int i = 0;
UNUSED(i);
}
#endif /* USE_FULL_ASSERT */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
/**
******************************************************************************
* File Name : RTC.c
* Description : This file provides code for the configuration
* of the RTC instances.
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2020 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "rtc.h"
#include <stdio.h>
/* USER CODE BEGIN 0 */
// #ifdef RTC_CLOCK_SOURCE_LSE
#define RTC_ASYNCH_PREDIV 0x7F
#define RTC_SYNCH_PREDIV 0x00FF
// #endif
/* USER CODE END 0 */
RTC_HandleTypeDef hrtc;
static uint8_t sz_rtc_time_cur[60] = {'\0'};
/* RTC init function */
void MX_RTC_Init(void)
{
RTC_TimeTypeDef sTime = {0};
RTC_DateTypeDef sDate = {0};
RTC_AlarmTypeDef sAlarm = {0};
/** Initialize RTC Only
*/
hrtc.Instance = RTC;
hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
hrtc.Init.AsynchPrediv = RTC_ASYNCH_PREDIV /*127*/; // CubeMx生成的代码，这里没有用宏...
hrtc.Init.SynchPrediv = RTC_SYNCH_PREDIV /*255*/; // CubeMx生成的代码，这里没有用宏...
hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
hrtc.Init.OutPutRemap = RTC_OUTPUT_REMAP_NONE;
if (HAL_RTC_Init(&hrtc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN Check_RTC_BKUP */
/* USER CODE END Check_RTC_BKUP */
/** Initialize RTC and set the Time and Date
*/
// set datetime to 2020/01/25 20:30:00
// 设置的格式是RTC_FORMAT_BCD, 数据要用BCD码表示
// 20:30:00
sTime.Hours = 0x08;
sTime.Minutes = 0x30;
sTime.Seconds = 0x0;
sTime.TimeFormat = RTC_HOURFORMAT12_PM;
sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
sTime.StoreOperation = RTC_STOREOPERATION_RESET;
if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BCD) != HAL_OK)
{
Error_Handler();
}
// 设置的格式是RTC_FORMAT_BCD, 数据要用BCD码表示
// 2020/01/25
sDate.Year = (0x2020 - 0x2000);
sDate.Month = RTC_MONTH_JANUARY;
sDate.Date = 0x25;
sDate.WeekDay = RTC_WEEKDAY_SATURDAY; // 周6
if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BCD) != HAL_OK)
{
Error_Handler();
}
RTC_TimeShow(sz_rtc_time_cur);
/** Enable the Alarm A
*/
// 设置的格式是RTC_FORMAT_BCD, 数据要用BCD码表示, 现在定时40秒后产生告警事件
// CubeMx生成的告警设置代码进不了告警回调, 官方板子代码好使
sAlarm.Alarm = RTC_ALARM_A;
sAlarm.AlarmDateWeekDay = RTC_WEEKDAY_SATURDAY; // 周6(2020/1/25) 必须设置
sAlarm.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_WEEKDAY;
sAlarm.AlarmMask = RTC_ALARMMASK_DATEWEEKDAY;
sAlarm.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_NONE;
// 周6(2020/1/25)下午8:30:40 => 20:30:40
sAlarm.AlarmTime.TimeFormat = RTC_HOURFORMAT12_PM; // 下午
sAlarm.AlarmTime.Hours = 0x08;
sAlarm.AlarmTime.Minutes = 0x30;
sAlarm.AlarmTime.Seconds = 0x40;
sAlarm.AlarmTime.SubSeconds = 0x00;
if (HAL_RTC_SetAlarm_IT(&hrtc, &sAlarm, RTC_FORMAT_BCD) != HAL_OK)
{
Error_Handler();
}
}
void HAL_RTC_MspInit(RTC_HandleTypeDef* rtcHandle)
{
if(rtcHandle->Instance==RTC)
{
/* USER CODE BEGIN RTC_MspInit 0 */
/* USER CODE END RTC_MspInit 0 */
/* RTC clock enable */
__HAL_RCC_RTC_ENABLE();
/* RTC interrupt Init */
HAL_NVIC_SetPriority(RTC_Alarm_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(RTC_Alarm_IRQn);
/* USER CODE BEGIN RTC_MspInit 1 */
/* USER CODE END RTC_MspInit 1 */
}
}
/**
* @brief Display the current time.
* @param showtime : pointer to buffer
* @retval None
*/
void RTC_TimeShow(uint8_t* showtime)
{
RTC_DateTypeDef sdatestructureget;
RTC_TimeTypeDef stimestructureget;
/* Get the RTC current Time */
HAL_RTC_GetTime(&hrtc, &stimestructureget, RTC_FORMAT_BIN);
/* Get the RTC current Date */
HAL_RTC_GetDate(&hrtc, &sdatestructureget, RTC_FORMAT_BIN);
/* Display time Format : year/month/day hh:mm:ss */
sprintf((char*)showtime,"%4.4d/%2.2d/%2.2d %02d:%02d:%02d",
sdatestructureget.Year + 2000,
sdatestructureget.Month,
sdatestructureget.Date,
stimestructureget.Hours,
stimestructureget.Minutes,
stimestructureget.Seconds);
}
void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
// 周6(2020/1/25)的20:30:40 告警事件发生，进入HAL_RTC_AlarmAEventCallback
UNUSED(hrtc);
RTC_TimeShow(sz_rtc_time_cur);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTC_AlarmAEventCallback could be implemented in the user file
*/
}
void HAL_RTC_MspDeInit(RTC_HandleTypeDef* rtcHandle)
{
if(rtcHandle->Instance==RTC)
{
/* USER CODE BEGIN RTC_MspDeInit 0 */
/* USER CODE END RTC_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_RTC_DISABLE();
/* RTC interrupt Deinit */
HAL_NVIC_DisableIRQ(RTC_Alarm_IRQn);
/* USER CODE BEGIN RTC_MspDeInit 1 */
/* USER CODE END RTC_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file stm32h7xx_it.c
* @brief Interrupt Service Routines.
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2020 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32h7xx_it.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN TD */
/* USER CODE END TD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/* External variables --------------------------------------------------------*/
extern RTC_HandleTypeDef hrtc;
/* USER CODE BEGIN EV */
/* USER CODE END EV */
/******************************************************************************/
/* Cortex Processor Interruption and Exception Handlers */
/******************************************************************************/
/**
* @brief This function handles Non maskable interrupt.
*/
void NMI_Handler(void)
{
/* USER CODE BEGIN NonMaskableInt_IRQn 0 */
/* USER CODE END NonMaskableInt_IRQn 0 */
/* USER CODE BEGIN NonMaskableInt_IRQn 1 */
/* USER CODE END NonMaskableInt_IRQn 1 */
}
/**
* @brief This function handles Hard fault interrupt.
*/
void HardFault_Handler(void)
{
/* USER CODE BEGIN HardFault_IRQn 0 */
/* USER CODE END HardFault_IRQn 0 */
while (1)
{
/* USER CODE BEGIN W1_HardFault_IRQn 0 */
/* USER CODE END W1_HardFault_IRQn 0 */
}
}
/**
* @brief This function handles Memory management fault.
*/
void MemManage_Handler(void)
{
/* USER CODE BEGIN MemoryManagement_IRQn 0 */
/* USER CODE END MemoryManagement_IRQn 0 */
while (1)
{
/* USER CODE BEGIN W1_MemoryManagement_IRQn 0 */
/* USER CODE END W1_MemoryManagement_IRQn 0 */
}
}
/**
* @brief This function handles Pre-fetch fault, memory access fault.
*/
void BusFault_Handler(void)
{
/* USER CODE BEGIN BusFault_IRQn 0 */
/* USER CODE END BusFault_IRQn 0 */
while (1)
{
/* USER CODE BEGIN W1_BusFault_IRQn 0 */
/* USER CODE END W1_BusFault_IRQn 0 */
}
}
/**
* @brief This function handles Undefined instruction or illegal state.
*/
void UsageFault_Handler(void)
{
/* USER CODE BEGIN UsageFault_IRQn 0 */
/* USER CODE END UsageFault_IRQn 0 */
while (1)
{
/* USER CODE BEGIN W1_UsageFault_IRQn 0 */
/* USER CODE END W1_UsageFault_IRQn 0 */
}
}
/**
* @brief This function handles System service call via SWI instruction.
*/
void SVC_Handler(void)
{
/* USER CODE BEGIN SVCall_IRQn 0 */
/* USER CODE END SVCall_IRQn 0 */
/* USER CODE BEGIN SVCall_IRQn 1 */
/* USER CODE END SVCall_IRQn 1 */
}
/**
* @brief This function handles Debug monitor.
*/
void DebugMon_Handler(void)
{
/* USER CODE BEGIN DebugMonitor_IRQn 0 */
/* USER CODE END DebugMonitor_IRQn 0 */
/* USER CODE BEGIN DebugMonitor_IRQn 1 */
/* USER CODE END DebugMonitor_IRQn 1 */
}
/**
* @brief This function handles Pendable request for system service.
*/
void PendSV_Handler(void)
{
/* USER CODE BEGIN PendSV_IRQn 0 */
/* USER CODE END PendSV_IRQn 0 */
/* USER CODE BEGIN PendSV_IRQn 1 */
/* USER CODE END PendSV_IRQn 1 */
}
/**
* @brief This function handles System tick timer.
*/
void SysTick_Handler(void)
{
/* USER CODE BEGIN SysTick_IRQn 0 */
/* USER CODE END SysTick_IRQn 0 */
HAL_IncTick();
/* USER CODE BEGIN SysTick_IRQn 1 */
/* USER CODE END SysTick_IRQn 1 */
}
/******************************************************************************/
/* STM32H7xx Peripheral Interrupt Handlers */
/* Add here the Interrupt Handlers for the used peripherals. */
/* For the available peripheral interrupt handler names, */
/* please refer to the startup file (startup_stm32h7xx.s). */
/******************************************************************************/
/**
* @brief This function handles RTC alarms (A and B) interrupt through EXTI line 17.
*/
void RTC_Alarm_IRQHandler(void)
{
/* USER CODE BEGIN RTC_Alarm_IRQn 0 */
/* USER CODE END RTC_Alarm_IRQn 0 */
HAL_RTC_AlarmIRQHandler(&hrtc);
/* USER CODE BEGIN RTC_Alarm_IRQn 1 */
/* USER CODE END RTC_Alarm_IRQn 1 */
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
/* USER CODE BEGIN Header */
/**
******************************************************************************
* File Name : stm32h7xx_hal_msp.c
* Description : This file provides code for the MSP Initialization
* and de-Initialization codes.
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2020 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN TD */
/* USER CODE END TD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN Define */
/* USER CODE END Define */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN Macro */
/* USER CODE END Macro */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* External functions --------------------------------------------------------*/
/* USER CODE BEGIN ExternalFunctions */
/* USER CODE END ExternalFunctions */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* Initializes the Global MSP.
*/
void HAL_MspInit(void)
{
/* USER CODE BEGIN MspInit 0 */
/* USER CODE END MspInit 0 */
__HAL_RCC_SYSCFG_CLK_ENABLE();
/* System interrupt init*/
/* USER CODE BEGIN MspInit 1 */
/* USER CODE END MspInit 1 */
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
备注
- 查资料是，看到STM32H743是单核(M7)，STM32H753是双核(M7 + M4)
