【CW32L031CxTx StartKit评估板测评】+RTC电子时钟

void ShowTime(void)

{

    RTC_TimeTypeDef RTC_TimeStruct = {0};

    RTC_DateTypeDef RTC_DateStruct = {0};

    static uint8_t *WeekdayStr[7]= {"SUN","MON","TUE","WED","THU","FRI","SAT"};

   static uint8_t *H12AMPMStr[2][2]= {{"AM","PM"},{"",""}};

    RTC_GetDate(&RTC_DateStruct);

    RTC_GetTime(&RTC_TimeStruct);

    Write_Max7219(1,RTC_TimeStruct.Second%16);

    Write_Max7219(2,RTC_TimeStruct.Second/16);

    Write_Max7219(3,0x0a);

    Write_Max7219(4,RTC_TimeStruct.Minute%16);

    Write_Max7219(5,RTC_TimeStruct.Minute/16);

    Write_Max7219(6,0x0a);

    Write_Max7219(7,RTC_TimeStruct.Hour%16);

    Write_Max7219(8,RTC_TimeStruct.Hour/16);

}

int32_t main(void)

{

    GPIO_InitTypeDef GPIO_InitStruct = {0};

    RCC_HSI_Enable(RCC_HSIOSC_DIV6);

    __RCC_GPIOC_CLK_ENABLE();

    MAX7219_gpio();

    Init_MAX7219();

    RTC_InitTypeDef RTC_InitStruct = {0};

    RTC_AlarmTypeDef RTC_AlarmStruct = {0};

    /* System Clocks Configuration */

    RCC_Configuration();

    LogInit();

    printf("RTC Init...\r\n");

    printf("    (RTC CR0:%04x,CR1:%04x,CR2:%04x,RESET FLAG:0x%08x)\r\n",CW_RTC->CR0,CW_RTC->CR1,CW_RTC->CR2,CW_SYSCTRL->RESETFLAG);

    //RCC_HSE_Enable(RCC_HSE_MODE_OSC, RCC_HSE_FREQ_GT24M,RCC_HSE_DRIVER_NORMAL, RCC_HSE_FLT_CLOSE);  //选择HSE为RTC时钟

    RCC_LSE_Enable(RCC_LSE_MODE_OSC, RCC_LSE_AMP_NORMAL, RCC_LSE_DRIVER_NORMAL);  // 选择LSE为RTC时钟

    //RCC_LSI_Enable();                                                           // 选择LSI为RTC时钟

    RTC_InitStruct.DateStruct.Day = 0x21;             //设置日期，DAY、MONTH、YEAR必须为BCD方式，星期为0~6，代表星期日，星期一至星期六

    RTC_InitStruct.DateStruct.Month = RTC_Month_June;

    RTC_InitStruct.DateStruct.Week = RTC_Weekday_Monday;

    RTC_InitStruct.DateStruct.Year = 0x21;

    printf("-------Set Date as 20%x/%x/%x\r\n", RTC_InitStruct.DateStruct.Year,RTC_InitStruct.DateStruct.Month,RTC_InitStruct.DateStruct.Day);

    RTC_InitStruct.TimeStruct.Hour = 0x11;         //设置时间，HOUR、MINIUTE、SECOND必须为BCD方式，用户须保证HOUR、AMPM、H24之间的关联正确性

    RTC_InitStruct.TimeStruct.Minute = 0x58;

    RTC_InitStruct.TimeStruct.Second = 0x59;

    RTC_InitStruct.TimeStruct.AMPM = 0;

    RTC_InitStruct.TimeStruct.H24 = 0;

    printf("-------Set Time as %02x:%02x:%02x\r\n", RTC_InitStruct.TimeStruct.Hour,RTC_InitStruct.TimeStruct.Minute,RTC_InitStruct.TimeStruct.Second);

    RTC_InitStruct.RTC_ClockSource = RTC_RTCCLK_FROM_LSE;

    RTC_Init(&RTC_InitStruct);    //  用户需选定需要使用的时钟源

    while(1)

    {

                 ShowTime();

                delay(2000);

    }

}