ST NUCLEO-C031C6开发板学习笔记07（RTC实时时钟）

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ST NUCLEO-C031C6开发板学习笔记07（RTC实时时钟） [复制链接]

<div class='showpostmsg'>## 10：RTC实时时钟 ### 10.1：硬件设计 查看芯片数据手册：  原理图设计：  ### 10.2：软件设计 1：CubeMX设置   2：代码编写 RTC初始化： ```C RTC_HandleTypeDef hrtc; /* RTC init function */ void MX_RTC_Init(void) { /* USER CODE BEGIN RTC_Init 0 */ /* USER CODE END RTC_Init 0 */ RTC_TimeTypeDef sTime = {0}; RTC_DateTypeDef sDate = {0}; /* USER CODE BEGIN RTC_Init 1 */ /* USER CODE END RTC_Init 1 */ /** Initialize RTC Only */ hrtc.Instance = RTC; hrtc.Init.HourFormat = RTC_HOURFORMAT_24; hrtc.Init.AsynchPrediv = 127; hrtc.Init.SynchPrediv = 255; hrtc.Init.OutPut = RTC_OUTPUT_DISABLE; hrtc.Init.OutPutRemap = RTC_OUTPUT_REMAP_NONE; hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH; hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN; hrtc.Init.OutPutPullUp = RTC_OUTPUT_PULLUP_NONE; if (HAL_RTC_Init(&hrtc) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN Check_RTC_BKUP */ /* USER CODE END Check_RTC_BKUP */ /** Initialize RTC and set the Time and Date */ sTime.Hours = 0x16; sTime.Minutes = 0x18; sTime.Seconds = 0x55; sTime.SubSeconds = 0x0; sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE; sTime.StoreOperation = RTC_STOREOPERATION_RESET; if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BCD) != HAL_OK) { Error_Handler(); } sDate.WeekDay = RTC_WEEKDAY_TUESDAY; sDate.Month = RTC_MONTH_MARCH; sDate.Date = 0x5; sDate.Year = 0x0; if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BCD) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN RTC_Init 2 */ /* USER CODE END RTC_Init 2 */ } ``` RTC实时时钟显示函数： ```C static void RTC_CalendarShow(uint8_t *showtime, uint8_t *showdate) { RTC_DateTypeDef sdatestructureget; RTC_TimeTypeDef stimestructureget; /* Get the RTC current Time */ HAL_RTC_GetTime(&hrtc, &stimestructureget, RTC_FORMAT_BIN); /* Get the RTC current Date */ HAL_RTC_GetDate(&hrtc, &sdatestructureget, RTC_FORMAT_BIN); /* Display time Format : hh:mm:ss */ sprintf((char *)showtime, "%2d:%2d:%2d", stimestructureget.Hours, stimestructureget.Minutes, stimestructureget.Seconds); /* Display date Format : mm-dd-yyyy */ sprintf((char *)showdate, "%2d-%2d-%2d", sdatestructureget.Month, sdatestructureget.Date, 2024 + sdatestructureget.Year); DEBUG_LOG("%s %s",showdate,showtime); } ``` ### 10.3：RTC单元测试 打开串口调试助手：  </div><script> var loginstr = '<div class="locked">查看本帖全部内容，请<a href="javascript:;" style="color:#e60000" class="loginf">登录</a>或者<a href="https://bbs.eeworld.com.cn/member.php?mod=register_eeworld.php&action=wechat" style="color:#e60000" target="_blank">注册</a></div>'; if(parseInt(discuz_uid)==0){ } </script><script type="text/javascript">(function(d,c){var a=d.createElement("script"),m=d.getElementsByTagName("script")[0],eewurl="//counter.eeworld.com.cn/pv/count/";a.src=eewurl+c;m.parentNode.insertBefore(a,m)})(document,523)</script>