rt-thread rtc 添加问题解决

启用片外LSE

添加rtc组件,并不要选择模拟rtc

调试L151时发现在"static rt_err_t rt_rtc_config(struct rt_device *dev)"函数中初始条件编译没有L151的芯片定义,添加上即可,代码如下

 

static rt_err_t rt_rtc_config(struct rt_device *dev)
{
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};

HAL_PWR_EnableBkUpAccess();
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
#ifdef BSP_RTC_USING_LSI
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
#else
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
#endif
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);

/* Enable RTC Clock */
__HAL_RCC_RTC_ENABLE();

RTC_Handler.Instance = RTC;
if (HAL_RTCEx_BKUPRead(&RTC_Handler, RTC_BKP_DR1) != BKUP_REG_DATA)
{
LOG_I("RTC hasn't been configured, please use <date> command to config.");

#if defined(SOC_SERIES_STM32F1)
RTC_Handler.Init.OutPut = RTC_OUTPUTSOURCE_NONE;
RTC_Handler.Init.AsynchPrediv = RTC_AUTO_1_SECOND;
#elif defined(SOC_SERIES_STM32F0)

/* set the frequency division */
#ifdef BSP_RTC_USING_LSI
RTC_Handler.Init.AsynchPrediv = 0XA0;
RTC_Handler.Init.SynchPrediv = 0xFA;
#else
RTC_Handler.Init.AsynchPrediv = 0X7F;
RTC_Handler.Init.SynchPrediv = 0x0130;
#endif /* BSP_RTC_USING_LSI */

RTC_Handler.Init.HourFormat = RTC_HOURFORMAT_24;
RTC_Handler.Init.OutPut = RTC_OUTPUT_DISABLE;
RTC_Handler.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
RTC_Handler.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
#elif defined(SOC_SERIES_STM32L1) || defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32H7)

/* set the frequency division */
#ifdef BSP_RTC_USING_LSI
RTC_Handler.Init.AsynchPrediv = 0X7D;
#else
RTC_Handler.Init.AsynchPrediv = 0X7F;
#endif /* BSP_RTC_USING_LSI */
RTC_Handler.Init.SynchPrediv = 0XFF;

RTC_Handler.Init.HourFormat = RTC_HOURFORMAT_24;
RTC_Handler.Init.OutPut = RTC_OUTPUT_DISABLE;
RTC_Handler.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
RTC_Handler.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
#endif
if (HAL_RTC_Init(&RTC_Handler) != HAL_OK)
{
return -RT_ERROR;
}
}
return RT_EOK;
}