WhyCan Forum(哇酷开发者社区)

用mdk自带的emwin和u盘等固件，发现一个奇葩问题，u盘需要在ui线程启动前启动，ui线程优先级也要比u盘低，而且ui里边启动rtc更新，居然会检测不到u盘的插入。诺是注释掉rtc 更新，u盘检测非常正常。

static void Caculate_RTC(WM_MESSAGE *pMsg)
{
    RTC_DateTypeDef Sdatestructure;
    RTC_TimeTypeDef Stimestructure;
    char buf[30];
    WM_HWIN hWin = pMsg->hWin;
   
    /* Get the RTC current Time */
    HAL_RTC_GetTime(&hrtc, &Stimestructure, RTC_FORMAT_BIN);
    /* Get the RTC current Date */
    HAL_RTC_GetDate(&hrtc, &Sdatestructure, RTC_FORMAT_BIN);

 
    sprintf(buf,
            "%0.2d-%0.2d-%0.2d %0.2d:%0.2d:%0.2d",      Sdatestructure.Year, Sdatestructure.Month, Sdatestructure.Date,
            Stimestructure.Hours, Stimestructure.Minutes, Stimestructure.Seconds
     
           );
    //TEXT_SetText(WM_GetDialogItem(hWin, ID_TEXT_TIME), buf);  //注释掉这行，才能检测到u盘

   
   sprintf(buf, "%0.6s", ucWeekDay[Sdatestructure.WeekDay - 1]);
          TEXT_SetText(WM_GetDialogItem(hWin, ID_TEXT_WEEK), buf);

}