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/**
******************************************************************************
* @file RTC/RTC_TimeStamp/Src/main.c
* @author MCD Application Team
* @brief This sample code shows how to use STM32F4xx RTC HAL API to
* ensure Time Stamp configuration.
******************************************************************************
* @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_TimeStamp
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* RTC handler declaration */
RTC_HandleTypeDef RtcHandle;
/* Buffers used for displaying Time and Date */
uint8_t aShowTime[50] = {0}, aShowTimeStamp[50] = {0};
uint8_t aShowDate[50] = {0}, aShowDateStamp[50] = {0};
/* Private function prototypes -----------------------------------------------*/
static void SystemClock_Config(void);
static void RTC_TimeStampConfig(void);
static void RTC_CalendarShow(void);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Set NVIC Group Priority to 4
- Low Level Initialization: global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Configure the system clock to 180 MHz */
SystemClock_Config();
/* Wait until MFX is ready after reset */
HAL_Delay(100);
/* Since MFX is used, LED init is done after clock config */
/* Configure LED1 and LED3 */
BSP_LED_Init(LED1);
BSP_LED_Init(LED3);
/* Configure Tamper push-button button */
BSP_PB_Init(BUTTON_TAMPER, BUTTON_MODE_GPIO);
/*##-1- Configure the RTC peripheral #######################################*/
/* Configure RTC prescaler and RTC data registers */
/* RTC configured as follows:
- Hour Format = Format 12
- Asynch Prediv = Value according to source clock
- Synch Prediv = Value according to source clock
- OutPut = Output Disable
- OutPutPolarity = High Polarity
- OutPutType = Open Drain */
__HAL_RTC_RESET_HANDLE_STATE(&RtcHandle);
RtcHandle.Instance = RTC;
RtcHandle.Init.HourFormat = RTC_HOURFORMAT_12;
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 RTC Timestamp ############################################*/
RTC_TimeStampConfig();
/* Infinite loop */
while (1)
{
/*##-3- Display the updated Time and Date ################################*/
RTC_CalendarShow();
}
}
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @retval None
*/
void Error_Handler(void)
{
while(1)
{
/* Toggle LED3 */
BSP_LED_Toggle(LED3);
/* Delay */
HAL_Delay(100);
}
}
/**
* @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
* PLL_R = 6
* 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;
HAL_StatusTypeDef ret = HAL_OK;
/* 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;
RCC_OscInitStruct.PLL.PLLR = 6;
ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
if(ret != HAL_OK)
{
while(1) { ; }
}
/* Activate the OverDrive to reach the 180 MHz Frequency */
ret = HAL_PWREx_EnableOverDrive();
if(ret != HAL_OK)
{
while(1) { ; }
}
/* 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;
ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
if(ret != HAL_OK)
{
while(1) { ; }
}
}
/**
* @brief Configure the current time and date and activate timestamp.
* @param None
* @retval None
*/
static void RTC_TimeStampConfig(void)
{
RTC_DateTypeDef sdatestructure;
RTC_TimeTypeDef stimestructure;
/*##-1- Configure the Time Stamp peripheral ################################*/
/* RTC TimeStamp generation: TimeStamp Rising Edge on PC.13 Pin */
HAL_RTCEx_SetTimeStamp_IT(&RtcHandle, RTC_TIMESTAMPEDGE_RISING, RTC_TIMESTAMPPIN_PC13);
/*##-2- Configure the Date #################################################*/
/* Set Date: Monday April 14th 2014 */
sdatestructure.Year = 0x14;
sdatestructure.Month = RTC_MONTH_APRIL;
sdatestructure.Date = 0x14;
sdatestructure.WeekDay = RTC_WEEKDAY_MONDAY;
if(HAL_RTC_SetDate(&RtcHandle,&sdatestructure, RTC_FORMAT_BCD) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/*##-3- Configure the Time #################################################*/
/* Set Time: 08:10:00 */
stimestructure.Hours = 0x08;
stimestructure.Minutes = 0x10;
stimestructure.Seconds = 0x00;
stimestructure.SubSeconds = 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 Timestamp callback
* @param hrtc : hrtc handle
* @retval None
*/
void HAL_RTCEx_TimeStampEventCallback(RTC_HandleTypeDef *hrtc)
{
RTC_DateTypeDef sTimeStampDateget;
RTC_TimeTypeDef sTimeStampget;
/* Toggle LED1 on */
BSP_LED_Toggle(LED1);
HAL_RTCEx_GetTimeStamp(&RtcHandle, &sTimeStampget, &sTimeStampDateget, RTC_FORMAT_BIN);
/* Display time Format : hh:mm:ss */
sprintf((char*)aShowTimeStamp,"%.2d:%.2d:%.2d", sTimeStampget.Hours, sTimeStampget.Minutes, sTimeStampget.Seconds);
/* Display date Format : mm-dd */
sprintf((char*)aShowDateStamp,"%.2d-%.2d-%.2d", sTimeStampDateget.Month, sTimeStampDateget.Date, 2014);
}
/**
* @brief Display the current time and date.
* @param showtime : pointer to buffer
* @param showdate : pointer to buffer
* @retval None
*/
static void RTC_CalendarShow(void)
{
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*)aShowTime,"%.2d:%.2d:%.2d", stimestructureget.Hours, stimestructureget.Minutes, stimestructureget.Seconds);
/* Display date Format : mm-dd-yy */
sprintf((char*)aShowDate,"%.2d-%.2d-%.2d", sdatestructureget.Month, sdatestructureget.Date, 2000 + sdatestructureget.Year);
}
#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
/**
* @}
*/
/**
* @}
*/
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