/**
******************************************************************************
* @file main.c
* @author MCU Application Team
* @brief Main program body
******************************************************************************
* @attention
*
* © Copyright (c) 2023 Puya Semiconductor Co.
* All rights reserved.
*
* This software component is licensed by Puya 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
*
******************************************************************************
* @attention
*
* © Copyright (c) 2016 STMicroelectronics.
* All rights reserved.
*
* 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 "main.h"
/* Private define ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
RTC_HandleTypeDef RtcHandle;
RTC_TimeTypeDef RTCtime;
RTC_AlarmTypeDef RTC_AlarmStruct;
/* Private user code ---------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static void APP_SystemClockConfig(void);
static void APP_RtcInit(void);
static void APP_RtcSetAlarm_IT(void);
/**
* @brief Main program.
* @retval int
*/
int main(void)
{
/* Reset of all peripherals, Initializes the Systick */
HAL_Init();
/* Enable LSI clock */
APP_SystemClockConfig();
/* Initialize LED */
BSP_LED_Init(LED_GREEN);
/* Initialization button */
BSP_PB_Init(BUTTON_KEY,BUTTON_MODE_GPIO);
/* Initialize debugging serial port (used by printf) */
BSP_USART_Config();
/* RTC initialization */
APP_RtcInit();
/* Turn on LED */
BSP_LED_On(LED_GREEN);
/* Wait for button press */
while (BSP_PB_GetState(BUTTON_USER) != 0)
{
}
/* Get current RTC time in binary format */
HAL_RTC_GetTime(&RtcHandle,&RTCtime,RTC_FORMAT_BIN);
/* Configure the time of the first alarm in binary format */
RTC_AlarmStruct.AlarmTime = RTCtime;
RTC_AlarmStruct.AlarmTime.Seconds += 1;
HAL_RTC_SetAlarm_IT(&RtcHandle, &RTC_AlarmStruct, RTC_FORMAT_BIN);
/* Turn off LED */
BSP_LED_Off(LED_GREEN);
while (1)
{
/* Suspend systick interrupt */
HAL_SuspendTick();
/* Low power STOP voltage 0.8V */
HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE4);
/* Enter STOP mode */
HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
/* Resume systick interrupt */
HAL_ResumeTick();
/* Wait for synchronization */
HAL_RTC_WaitForSynchro(&RtcHandle);
/* Set RTC alarm */
APP_RtcSetAlarm_IT();
}
}
/**
* @brief RTC initialization function, sets RTC to January 1, 2022, Saturday, 00:00:00
* @param None
* @retval None
*/
static void APP_RtcInit(void)
{
RTC_TimeTypeDef Timeinit = {0};
RCC_PeriphCLKInitTypeDef RTCLCKconfig = {0};
/* RCC peripheral clock initialization */
RTCLCKconfig.PeriphClockSelection = RCC_PERIPHCLK_RTC;/* RCC peripheral clock selection as RTC */
RTCLCKconfig.RtcClockSelection = RCC_RTCCLKSOURCE_LSI;/* RTC source selection as LSI */
HAL_RCCEx_PeriphCLKConfig(&RTCLCKconfig);
__HAL_RCC_RTC_ENABLE(); /* Enable RTC clock */
/* RTC initialization */
RtcHandle.Instance = RTC; /* Select RTC */
RtcHandle.Init.AsynchPrediv = RTC_AUTO_1_SECOND; /* Automatic calculation of RTC's 1-second time base */
RtcHandle.Init.OutPut = RTC_OUTPUTSOURCE_NONE; /* No output on the TAMPER pin */
/*Set RTC current time：2022-1-1-00:00:00*/
RtcHandle.DateToUpdate.Year = 22; /* Year 22 */
RtcHandle.DateToUpdate.Month = RTC_MONTH_JANUARY; /* January */
RtcHandle.DateToUpdate.Date = 1; /* 1st day */
RtcHandle.DateToUpdate.WeekDay = RTC_WEEKDAY_SATURDAY; /* Saturday */
Timeinit.Hours = 0x00; /* 0 hours */
Timeinit.Minutes = 0x00; /* 0 minutes */
Timeinit.Seconds = 0x00; /* 0 seconds */
/* RTC deinitialization */
HAL_RTC_DeInit(&RtcHandle);
/* RTC initialization */
HAL_RTC_Init(&RtcHandle);
HAL_RTC_SetTime(&RtcHandle, &Timeinit, RTC_FORMAT_BIN);
}
/**
* @brief Set RTC alarm interrupt
* @param Sec：seconds；
* @param Min：minutes；
* @param Hour：hours；
* @retval None
*/
static void APP_RtcSetAlarm_IT()
{
/* Get current alarm time in binary format */
HAL_RTC_GetAlarm(&RtcHandle, &RTC_AlarmStruct, RTC_FORMAT_BIN);
/* Update alarm time in binary format */
RTC_AlarmStruct.AlarmTime.Seconds += 1;
HAL_RTC_SetAlarm_IT(&RtcHandle, &RTC_AlarmStruct, RTC_FORMAT_BIN);
}
/**
* @brief RTC alarm event callback function, LED turns on when exiting low-power mode
* @param hrtc：RTC handle
* @retval None
*/
void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc)
{
BSP_LED_Toggle(LED_GREEN);
printf("%02u:%02u:%02u\r\n", RTC_AlarmStruct.AlarmTime.Hours , RTC_AlarmStruct.AlarmTime.Minutes, RTC_AlarmStruct.AlarmTime.Seconds);
}
/**
* @brief System clock configuration function
* @param None
* @retval None
*/
static void APP_SystemClockConfig(void)
{
RCC_OscInitTypeDef OscInitstruct = {0};
RCC_ClkInitTypeDef ClkInitstruct = {0};
OscInitstruct.OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_LSE |
RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_HSI48M;
OscInitstruct.HSEState = RCC_HSE_OFF; /* Disable HSE */
/* OscInitstruct.HSEFreq = RCC_HSE_16_32MHz; */ /* HSE working frequency range: 16M~32M */
OscInitstruct.HSI48MState = RCC_HSI48M_OFF; /* Disable HSI48M */
OscInitstruct.HSIState = RCC_HSI_ON; /* Enable HSI */
OscInitstruct.LSEState = RCC_LSE_OFF; /* Disable LSE */
/* OscInitstruct.LSEDriver = RCC_LSEDRIVE_HIGH; */ /* Drive capability level: High */
OscInitstruct.LSIState = RCC_LSI_ON; /* Enable LSI */
OscInitstruct.PLL.PLLState = RCC_PLL_OFF; /* Disable PLL */
/* OscInitstruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; */ /* PLL clock source: HSE */
/* OscInitstruct.PLL.PLLMUL = RCC_PLL_MUL6; */ /* PLL multiplication factor: 6 */
/* Configure Oscillators */
if(HAL_RCC_OscConfig(&OscInitstruct) != HAL_OK)
{
APP_ErrorHandler();
}
ClkInitstruct.ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
ClkInitstruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI; /* System clock source: HSI */
ClkInitstruct.AHBCLKDivider = RCC_SYSCLK_DIV1; /* AHB clock not divided */
ClkInitstruct.APB1CLKDivider = RCC_HCLK_DIV1; /* APB1 clock not divided */
ClkInitstruct.APB2CLKDivider = RCC_HCLK_DIV2; /* APB2 clock divided by 2 */
/* Configure Clocks */
if(HAL_RCC_ClockConfig(&ClkInitstruct, FLASH_LATENCY_0) != HAL_OK)
{
APP_ErrorHandler();
}
}
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @retval None
*/
void APP_ErrorHandler(void)
{
while (1)
{
}
}
#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,
for example: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif /* USE_FULL_ASSERT */
/************************ (C) COPYRIGHT Puya *****END OF FILE******************/