/** ****************************************************************************** * @file main.c * @author fire * @version V1.0 * @date 2019-xx-xx * @brief RTC驱动 ****************************************************************************** * @attention * * 实验平台:野火 STM32H743 开发板 * 论坛 :http://www.firebbs.cn * 淘宝 :http://firestm32.taobao.com * ****************************************************************************** */ #include "stm32h7xx.h" #include "./RTC/bsp_rtc.h" #include "./usart/bsp_usart.h" #include "./lcd/bsp_lcd.h" #include "./led/bsp_led.h" #include "./beep/bsp_beep.h" RTC_HandleTypeDef Rtc_Handle; __IO uint8_t Alarmflag =0; /** * @brief 设置时间和日期 * @param 无 * @retval 无 */ void RTC_TimeAndDate_Set(void) { RTC_DateTypeDef RTC_DateStructure; RTC_TimeTypeDef RTC_TimeStructure; // 初始化时间 RTC_TimeStructure.TimeFormat = RTC_H12_AMorPM; RTC_TimeStructure.Hours = HOURS; RTC_TimeStructure.Minutes = MINUTES; RTC_TimeStructure.Seconds = SECONDS; RTC_TimeStructure.DayLightSaving = RTC_DAYLIGHTSAVING_NONE; RTC_TimeStructure.StoreOperation = RTC_STOREOPERATION_RESET; HAL_RTC_SetTime(&Rtc_Handle,&RTC_TimeStructure, RTC_FORMAT_BIN); // 初始化日期 RTC_DateStructure.WeekDay = WEEKDAY; RTC_DateStructure.Date = DATE; RTC_DateStructure.Month = MONTH; RTC_DateStructure.Year = YEAR; HAL_RTC_SetDate(&Rtc_Handle,&RTC_DateStructure, RTC_FORMAT_BIN); HAL_RTCEx_BKUPWrite(&Rtc_Handle,RTC_BKP_DRX, RTC_BKP_DATA); } /** * @brief 显示时间和日期 * @param 无 * @retval 无 */ void RTC_TimeAndDate_Show(void) { uint8_t Rtctmp=0; char LCDTemp[100]; RTC_TimeTypeDef RTC_TimeStructure; RTC_DateTypeDef RTC_DateStructure; while(1) { // 获取日历 HAL_RTC_GetTime(&Rtc_Handle, &RTC_TimeStructure, RTC_FORMAT_BIN); HAL_RTC_GetDate(&Rtc_Handle, &RTC_DateStructure, RTC_FORMAT_BIN); // 每秒打印一次 if(Rtctmp != RTC_TimeStructure.Seconds) { // 打印日期 printf("The Date : Y:20%0.2d - M:%0.2d - D:%0.2d - W:%0.2d\r\n", RTC_DateStructure.Year, RTC_DateStructure.Month, RTC_DateStructure.Date, RTC_DateStructure.WeekDay); //液晶显示日期 //先把要显示的数据用sprintf函数转换为字符串，然后才能用液晶显示函数显示 sprintf(LCDTemp,"The Date : Y:20%0.2d - M:%0.2d - D:%0.2d - W:%0.2d", RTC_DateStructure.Year, RTC_DateStructure.Month, RTC_DateStructure.Date, RTC_DateStructure.WeekDay); LCD_SetColors(LCD_COLOR_RED,LCD_COLOR_BLACK); LCD_DisplayStringLine_EN_CH(8,(uint8_t *)LCDTemp); // 打印时间 printf("The Time : %0.2d:%0.2d:%0.2d \r\n\r\n", RTC_TimeStructure.Hours, RTC_TimeStructure.Minutes, RTC_TimeStructure.Seconds); //液晶显示时间 sprintf(LCDTemp,"The Time : %0.2d:%0.2d:%0.2d", RTC_TimeStructure.Hours, RTC_TimeStructure.Minutes, RTC_TimeStructure.Seconds); LCD_DisplayStringLine_EN_CH(10,(uint8_t *)LCDTemp); // (void)RTC->DR; if(Alarmflag) { Alarmflag++; if(Alarmflag < 30) { LED2_TOGGLE; BEEP_TOGGLE; } else Alarmflag = 30; } } Rtctmp = RTC_TimeStructure.Seconds; } } /** * @brief RTC配置：选择RTC时钟源，设置RTC_CLK的分频系数 * @param 无 * @retval 无 */ void RTC_CLK_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct; RCC_PeriphCLKInitTypeDef PeriphClkInitStruct; // 配置RTC外设 Rtc_Handle.Instance = RTC; /*使能 PWR 时钟*/ __HAL_RCC_RTC_ENABLE(); /* PWR_CR:DBF置1，使能RTC、RTC备份寄存器和备份SRAM的访问 */ HAL_PWR_EnableBkUpAccess(); #if defined (RTC_CLOCK_SOURCE_LSI) /* 使用LSI作为RTC时钟源会有误差 * 默认选择LSE作为RTC的时钟源 */ /* 初始化LSI */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; RCC_OscInitStruct.LSIState = RCC_LSI_ON; RCC_OscInitStruct.LSEState = RCC_LSE_OFF; HAL_RCC_OscConfig(&RCC_OscInitStruct); /* 选择LSI做为RTC的时钟源 */ PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC; PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI; HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct); #elif defined (RTC_CLOCK_SOURCE_LSE) /* 初始化LSE */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; RCC_OscInitStruct.LSEState = RCC_LSE_ON; RCC_OscInitStruct.LSIState = RCC_LSI_OFF; HAL_RCC_OscConfig(&RCC_OscInitStruct); /* 选择LSE做为RTC的时钟源 */ PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC; PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSE; HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct); /* Configures the External Low Speed oscillator (LSE) drive capability */ __HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_HIGH); #endif /* RTC_CLOCK_SOURCE_LSI */ /* 使能RTC时钟 */ __HAL_RCC_RTC_ENABLE(); /* 等待 RTC APB 寄存器同步 */ HAL_RTC_WaitForSynchro(&Rtc_Handle); /*=====================初始化同步/异步预分频器的值======================*/ /* 驱动日历的时钟ck_spare = LSE/[(255+1)*(127+1)] = 1HZ */ /* 设置异步预分频器的值 */ Rtc_Handle.Init.AsynchPrediv = ASYNCHPREDIV; /* 设置同步预分频器的值 */ Rtc_Handle.Init.SynchPrediv = SYNCHPREDIV; Rtc_Handle.Init.HourFormat = RTC_H12_AMorPM; /* 用RTC_InitStructure的内容初始化RTC寄存器 */ if (HAL_RTC_Init(&Rtc_Handle) != HAL_OK) { printf("\n\r RTC 时钟初始化失败 \r\n"); } } /* * 要使能 RTC 闹钟中断，需按照以下顺序操作： * 1. 配置 NVIC 中的 RTC_Alarm IRQ 通道并将其使能。 * 2. 配置 RTC 以生成 RTC 闹钟（闹钟 A 或闹钟 B）。 * * */ void RTC_AlarmSet(void) { RTC_AlarmTypeDef RTC_AlarmStructure; /* RTC 闹钟中断配置 */ __HAL_RCC_SYSCFG_CLK_ENABLE(); HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_2); /* EXTI 配置 */ HAL_NVIC_SetPriority(RTC_Alarm_IRQn, 0, 0); /* 使能RTC闹钟中断 */ HAL_NVIC_EnableIRQ(RTC_Alarm_IRQn); /* 设置闹钟时间 */ RTC_AlarmStructure.Alarm = RTC_Alarm_X; RTC_AlarmStructure.AlarmTime.TimeFormat = RTC_H12_AMorPM; RTC_AlarmStructure.AlarmTime.Hours = ALARM_HOURS; RTC_AlarmStructure.AlarmTime.Minutes = ALARM_MINUTES; RTC_AlarmStructure.AlarmTime.Seconds = ALARM_SECONDS; RTC_AlarmStructure.AlarmMask = ALARM_MASK; RTC_AlarmStructure.AlarmDateWeekDaySel = ALARM_DATE_WEEKDAY_SEL; RTC_AlarmStructure.AlarmDateWeekDay = ALARM_DATE_WEEKDAY; HAL_RTC_SetAlarm_IT(&Rtc_Handle, &RTC_AlarmStructure, RTC_FORMAT_BIN); } /** * @brief Alarm callback * @param hrtc : RTC handle * @retval None */ void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc) { /* 闹钟时间到，蜂鸣器标志位置1 */ Alarmflag = 1; } /**********************************END OF FILE*************************************/