mirror of
https://github.com/STMicroelectronics/STM32CubeF4.git
synced 2025-05-03 22:17:07 +08:00
302 lines
9.4 KiB
C
302 lines
9.4 KiB
C
/**
|
|
******************************************************************************
|
|
* @file RTC/RTC_Alarm/Src/main.c
|
|
* @author MCD Application Team
|
|
* @brief This sample code shows how to use STM32F4xx RTC HAL API to configure
|
|
* Time and Date.
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* Copyright (c) 2017 STMicroelectronics.
|
|
* All rights reserved.
|
|
*
|
|
* This software is licensed under terms that can be found in the LICENSE file
|
|
* in the root directory of this software component.
|
|
* If no LICENSE file comes with this software, it is provided AS-IS.
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
|
|
/* Includes ------------------------------------------------------------------*/
|
|
#include "main.h"
|
|
|
|
/** @addtogroup STM32F4xx_HAL_Examples
|
|
* @{
|
|
*/
|
|
|
|
/** @addtogroup RTC_Alarm
|
|
* @{
|
|
*/
|
|
|
|
/* Private typedef -----------------------------------------------------------*/
|
|
/* Private define ------------------------------------------------------------*/
|
|
/* Private macro -------------------------------------------------------------*/
|
|
/* Private variables ---------------------------------------------------------*/
|
|
/* RTC handler declaration */
|
|
RTC_HandleTypeDef RtcHandle;
|
|
|
|
/* Buffer used for displaying Time */
|
|
uint8_t aShowTime[50] = {0};
|
|
|
|
/* Private function prototypes -----------------------------------------------*/
|
|
static void SystemClock_Config(void);
|
|
static void RTC_AlarmConfig(void);
|
|
static void RTC_TimeShow(uint8_t* showtime);
|
|
|
|
/* Private functions ---------------------------------------------------------*/
|
|
|
|
/**
|
|
* @brief Main program
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
int main(void)
|
|
{
|
|
/* STM32F4xx HAL library initialization:
|
|
- Configure the Flash prefetch, instruction and Data caches
|
|
- Configure the Systick to generate an interrupt each 1 msec
|
|
- Set NVIC Group Priority to 4
|
|
- Global MSP (MCU Support Package) initialization
|
|
*/
|
|
HAL_Init();
|
|
|
|
/* Configure LED1 and LED3 */
|
|
BSP_LED_Init(LED1);
|
|
BSP_LED_Init(LED3);
|
|
|
|
/* Configure the system clock to 180 MHz */
|
|
SystemClock_Config();
|
|
|
|
/*##-1- Configure the RTC peripheral #######################################*/
|
|
RtcHandle.Instance = RTC;
|
|
|
|
/* Configure RTC prescaler and RTC data registers */
|
|
/* RTC configured as follow:
|
|
- Hour Format = Format 24
|
|
- Asynch Prediv = Value according to source clock
|
|
- Synch Prediv = Value according to source clock
|
|
- OutPut = Output Disable
|
|
- OutPutPolarity = High Polarity
|
|
- OutPutType = Open Drain */
|
|
RtcHandle.Init.HourFormat = RTC_HOURFORMAT_24;
|
|
RtcHandle.Init.AsynchPrediv = RTC_ASYNCH_PREDIV;
|
|
RtcHandle.Init.SynchPrediv = RTC_SYNCH_PREDIV;
|
|
RtcHandle.Init.OutPut = RTC_OUTPUT_DISABLE;
|
|
RtcHandle.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
|
|
RtcHandle.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
|
|
__HAL_RTC_RESET_HANDLE_STATE(&RtcHandle);
|
|
if(HAL_RTC_Init(&RtcHandle) != HAL_OK)
|
|
{
|
|
/* Initialization Error */
|
|
Error_Handler();
|
|
}
|
|
|
|
/*##-2- Configure Alarm ####################################################*/
|
|
/* Configure RTC Alarm */
|
|
RTC_AlarmConfig();
|
|
|
|
/* Infinite loop */
|
|
while (1)
|
|
{
|
|
/*##-3- Display the updated Time #########################################*/
|
|
RTC_TimeShow(aShowTime);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Alarm callback
|
|
* @param hrtc: RTC handle
|
|
* @retval None
|
|
*/
|
|
void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc)
|
|
{
|
|
/* Alarm generation: Turn LED1 on */
|
|
BSP_LED_On(LED1);
|
|
}
|
|
|
|
/**
|
|
* @brief System Clock Configuration
|
|
* The system Clock is configured as follow :
|
|
* System Clock source = PLL (HSE)
|
|
* SYSCLK(Hz) = 180000000
|
|
* HCLK(Hz) = 180000000
|
|
* AHB Prescaler = 1
|
|
* APB1 Prescaler = 4
|
|
* APB2 Prescaler = 2
|
|
* HSE Frequency(Hz) = 25000000
|
|
* PLL_M = 25
|
|
* PLL_N = 360
|
|
* PLL_P = 2
|
|
* PLL_Q = 7
|
|
* VDD(V) = 3.3
|
|
* Main regulator output voltage = Scale1 mode
|
|
* Flash Latency(WS) = 5
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
static void SystemClock_Config(void)
|
|
{
|
|
RCC_ClkInitTypeDef RCC_ClkInitStruct;
|
|
RCC_OscInitTypeDef RCC_OscInitStruct;
|
|
|
|
/* Enable Power Control clock */
|
|
__HAL_RCC_PWR_CLK_ENABLE();
|
|
|
|
/* The voltage scaling allows optimizing the power consumption when the device is
|
|
clocked below the maximum system frequency, to update the voltage scaling value
|
|
regarding system frequency refer to product datasheet. */
|
|
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
|
|
|
|
/* Enable HSE Oscillator and activate PLL with HSE as source */
|
|
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
|
|
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
|
|
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
|
|
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
|
|
RCC_OscInitStruct.PLL.PLLM = 25;
|
|
RCC_OscInitStruct.PLL.PLLN = 360;
|
|
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
|
|
RCC_OscInitStruct.PLL.PLLQ = 7;
|
|
if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
|
|
/* Activate the Over Drive feature (available only for STM32F42xxx/43xxx devices)*/
|
|
if(HAL_PWREx_EnableOverDrive() != HAL_OK)
|
|
{
|
|
/* Initialization Error */
|
|
Error_Handler();
|
|
}
|
|
|
|
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
|
|
clocks dividers */
|
|
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
|
|
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
|
|
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
|
|
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
|
|
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
|
|
if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief This function is executed in case of error occurrence.
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
void Error_Handler(void)
|
|
{
|
|
/* Turn LED3 on */
|
|
BSP_LED_On(LED3);
|
|
while(1)
|
|
{}
|
|
}
|
|
|
|
/**
|
|
* @brief Configure the current time and date.
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
static void RTC_AlarmConfig(void)
|
|
{
|
|
RTC_DateTypeDef sdatestructure;
|
|
RTC_TimeTypeDef stimestructure;
|
|
RTC_AlarmTypeDef salarmstructure;
|
|
|
|
/*##-1- Configure the RTC Alarm peripheral #################################*/
|
|
/* Set Alarm to 02:20:30
|
|
RTC Alarm Generation: Alarm on Hours, Minutes and Seconds */
|
|
salarmstructure.Alarm = RTC_ALARM_A;
|
|
salarmstructure.AlarmDateWeekDay = RTC_WEEKDAY_MONDAY;
|
|
salarmstructure.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;
|
|
salarmstructure.AlarmMask = RTC_ALARMMASK_DATEWEEKDAY;
|
|
salarmstructure.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_NONE;
|
|
salarmstructure.AlarmTime.TimeFormat = RTC_HOURFORMAT12_AM;
|
|
salarmstructure.AlarmTime.Hours = 0x02;
|
|
salarmstructure.AlarmTime.Minutes = 0x20;
|
|
salarmstructure.AlarmTime.Seconds = 0x30;
|
|
salarmstructure.AlarmTime.SubSeconds = 0xF9;
|
|
|
|
if(HAL_RTC_SetAlarm_IT(&RtcHandle,&salarmstructure,RTC_FORMAT_BCD) != HAL_OK)
|
|
{
|
|
/* Initialization Error */
|
|
Error_Handler();
|
|
}
|
|
|
|
/*##-2- Configure the Date #################################################*/
|
|
/* Set Date: Tuesday February 18th 2014 */
|
|
sdatestructure.Year = 0x14;
|
|
sdatestructure.Month = RTC_MONTH_FEBRUARY;
|
|
sdatestructure.Date = 0x18;
|
|
sdatestructure.WeekDay = RTC_WEEKDAY_TUESDAY;
|
|
|
|
if(HAL_RTC_SetDate(&RtcHandle,&sdatestructure,RTC_FORMAT_BCD) != HAL_OK)
|
|
{
|
|
/* Initialization Error */
|
|
Error_Handler();
|
|
}
|
|
|
|
/*##-3- Configure the Time #################################################*/
|
|
/* Set Time: 02:20:00 */
|
|
stimestructure.Hours = 0x02;
|
|
stimestructure.Minutes = 0x20;
|
|
stimestructure.Seconds = 0x00;
|
|
stimestructure.TimeFormat = RTC_HOURFORMAT12_AM;
|
|
stimestructure.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
|
|
stimestructure.StoreOperation = RTC_STOREOPERATION_RESET;
|
|
|
|
if(HAL_RTC_SetTime(&RtcHandle,&stimestructure,RTC_FORMAT_BCD) != HAL_OK)
|
|
{
|
|
/* Initialization Error */
|
|
Error_Handler();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Display the current time.
|
|
* @param showtime : pointer to buffer
|
|
* @retval None
|
|
*/
|
|
static void RTC_TimeShow(uint8_t* showtime)
|
|
{
|
|
RTC_DateTypeDef sdatestructureget;
|
|
RTC_TimeTypeDef stimestructureget;
|
|
|
|
/* Get the RTC current Time */
|
|
HAL_RTC_GetTime(&RtcHandle, &stimestructureget, RTC_FORMAT_BIN);
|
|
/* Get the RTC current Date */
|
|
HAL_RTC_GetDate(&RtcHandle, &sdatestructureget, RTC_FORMAT_BIN);
|
|
/* Display time Format : hh:mm:ss */
|
|
sprintf((char*)showtime,"%02d:%02d:%02d",stimestructureget.Hours, stimestructureget.Minutes, stimestructureget.Seconds);
|
|
}
|
|
|
|
#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 can add his own implementation to report the file name and line number,
|
|
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
|
|
|
|
/* Infinite loop */
|
|
while (1)
|
|
{
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|