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/**
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******************************************************************************
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* @file main.c
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* @author MCU Application Team
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* @brief Main program body
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2023 Puya Semiconductor Co.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by Puya under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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/* Private define ------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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RTC_HandleTypeDef RtcHandle;
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RTC_TimeTypeDef RTCtime;
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RTC_AlarmTypeDef RTC_AlarmStruct;
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/* Private user code ---------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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static void APP_SystemClockConfig(void);
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static void APP_RtcInit(void);
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static void APP_RtcSetAlarm_IT(void);
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/**
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* @brief Main program.
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* @retval int
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*/
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int main(void)
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{
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/* Reset of all peripherals, Initializes the Systick */
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HAL_Init();
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/* Enable LSI clock */
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APP_SystemClockConfig();
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/* Initialize LED */
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BSP_LED_Init(LED_GREEN);
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/* Initialization button */
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BSP_PB_Init(BUTTON_KEY,BUTTON_MODE_GPIO);
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/* Initialize debugging serial port (used by printf) */
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BSP_USART_Config();
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/* RTC initialization */
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APP_RtcInit();
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/* Turn on LED */
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BSP_LED_On(LED_GREEN);
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/* Wait for button press */
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while (BSP_PB_GetState(BUTTON_USER) != 0)
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{
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}
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/* Get current RTC time in binary format */
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HAL_RTC_GetTime(&RtcHandle,&RTCtime,RTC_FORMAT_BIN);
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/* Configure the time of the first alarm in binary format */
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RTC_AlarmStruct.AlarmTime = RTCtime;
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RTC_AlarmStruct.AlarmTime.Seconds += 1;
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HAL_RTC_SetAlarm_IT(&RtcHandle, &RTC_AlarmStruct, RTC_FORMAT_BIN);
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/* Turn off LED */
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BSP_LED_Off(LED_GREEN);
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while (1)
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{
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/* Suspend systick interrupt */
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HAL_SuspendTick();
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/* Low power STOP voltage 0.8V */
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HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE4);
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/* Enter STOP mode */
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HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
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/* Resume systick interrupt */
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HAL_ResumeTick();
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/* Wait for synchronization */
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HAL_RTC_WaitForSynchro(&RtcHandle);
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/* Set RTC alarm */
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APP_RtcSetAlarm_IT();
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}
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}
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/**
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* @brief RTC initialization function, sets RTC to January 1, 2022, Saturday, 00:00:00
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* @param None
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* @retval None
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*/
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static void APP_RtcInit(void)
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{
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RTC_TimeTypeDef Timeinit = {0};
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RCC_PeriphCLKInitTypeDef RTCLCKconfig = {0};
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/* RCC peripheral clock initialization */
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RTCLCKconfig.PeriphClockSelection = RCC_PERIPHCLK_RTC;/* RCC peripheral clock selection as RTC */
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RTCLCKconfig.RtcClockSelection = RCC_RTCCLKSOURCE_LSI;/* RTC source selection as LSI */
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HAL_RCCEx_PeriphCLKConfig(&RTCLCKconfig);
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__HAL_RCC_RTC_ENABLE(); /* Enable RTC clock */
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/* RTC initialization */
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RtcHandle.Instance = RTC; /* Select RTC */
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RtcHandle.Init.AsynchPrediv = RTC_AUTO_1_SECOND; /* Automatic calculation of RTC's 1-second time base */
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RtcHandle.Init.OutPut = RTC_OUTPUTSOURCE_NONE; /* No output on the TAMPER pin */
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/*Set RTC current time：2022-1-1-00:00:00*/
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RtcHandle.DateToUpdate.Year = 22; /* Year 22 */
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RtcHandle.DateToUpdate.Month = RTC_MONTH_JANUARY; /* January */
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RtcHandle.DateToUpdate.Date = 1; /* 1st day */
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RtcHandle.DateToUpdate.WeekDay = RTC_WEEKDAY_SATURDAY; /* Saturday */
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Timeinit.Hours = 0x00; /* 0 hours */
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Timeinit.Minutes = 0x00; /* 0 minutes */
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Timeinit.Seconds = 0x00; /* 0 seconds */
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/* RTC deinitialization */
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HAL_RTC_DeInit(&RtcHandle);
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/* RTC initialization */
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HAL_RTC_Init(&RtcHandle);
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HAL_RTC_SetTime(&RtcHandle, &Timeinit, RTC_FORMAT_BIN);
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}
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/**
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* @brief Set RTC alarm interrupt
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* @param Sec：seconds；
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* @param Min：minutes；
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* @param Hour：hours；
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* @retval None
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*/
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static void APP_RtcSetAlarm_IT()
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{
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/* Get current alarm time in binary format */
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HAL_RTC_GetAlarm(&RtcHandle, &RTC_AlarmStruct, RTC_FORMAT_BIN);
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/* Update alarm time in binary format */
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RTC_AlarmStruct.AlarmTime.Seconds += 1;
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HAL_RTC_SetAlarm_IT(&RtcHandle, &RTC_AlarmStruct, RTC_FORMAT_BIN);
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}
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/**
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* @brief RTC alarm event callback function, LED turns on when exiting low-power mode
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* @param hrtc：RTC handle
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* @retval None
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*/
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void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc)
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{
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BSP_LED_Toggle(LED_GREEN);
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printf("%02u:%02u:%02u\r\n", RTC_AlarmStruct.AlarmTime.Hours , RTC_AlarmStruct.AlarmTime.Minutes, RTC_AlarmStruct.AlarmTime.Seconds);
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}
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/**
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* @brief System clock configuration function
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* @param None
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* @retval None
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*/
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static void APP_SystemClockConfig(void)
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{
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RCC_OscInitTypeDef OscInitstruct = {0};
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RCC_ClkInitTypeDef ClkInitstruct = {0};
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OscInitstruct.OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_LSE |
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RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_HSI48M;
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OscInitstruct.HSEState = RCC_HSE_OFF; /* Disable HSE */
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/* OscInitstruct.HSEFreq = RCC_HSE_16_32MHz; */ /* HSE working frequency range: 16M~32M */
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OscInitstruct.HSI48MState = RCC_HSI48M_OFF; /* Disable HSI48M */
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OscInitstruct.HSIState = RCC_HSI_ON; /* Enable HSI */
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OscInitstruct.LSEState = RCC_LSE_OFF; /* Disable LSE */
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/* OscInitstruct.LSEDriver = RCC_LSEDRIVE_HIGH; */ /* Drive capability level: High */
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OscInitstruct.LSIState = RCC_LSI_ON; /* Enable LSI */
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OscInitstruct.PLL.PLLState = RCC_PLL_OFF; /* Disable PLL */
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/* OscInitstruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; */ /* PLL clock source: HSE */
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/* OscInitstruct.PLL.PLLMUL = RCC_PLL_MUL6; */ /* PLL multiplication factor: 6 */
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/* Configure Oscillators */
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if(HAL_RCC_OscConfig(&OscInitstruct) != HAL_OK)
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{
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APP_ErrorHandler();
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}
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ClkInitstruct.ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
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ClkInitstruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI; /* System clock source: HSI */
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ClkInitstruct.AHBCLKDivider = RCC_SYSCLK_DIV1; /* AHB clock not divided */
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ClkInitstruct.APB1CLKDivider = RCC_HCLK_DIV1; /* APB1 clock not divided */
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ClkInitstruct.APB2CLKDivider = RCC_HCLK_DIV2; /* APB2 clock divided by 2 */
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/* Configure Clocks */
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if(HAL_RCC_ClockConfig(&ClkInitstruct, FLASH_LATENCY_0) != HAL_OK)
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{
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APP_ErrorHandler();
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}
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}
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/**
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* @brief This function is executed in case of error occurrence.
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* @param None
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* @retval None
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*/
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void APP_ErrorHandler(void)
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{
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while (1)
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{
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}
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t *file, uint32_t line)
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{
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/* User can add his own implementation to report the file name and line number,
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for example: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* Infinite loop */
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while (1)
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{
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}
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}
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#endif /* USE_FULL_ASSERT */
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/************************ (C) COPYRIGHT Puya *****END OF FILE******************/
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