请高手帮忙，我在设置时间时用以下函数，可是调用RTC_SetCounter(seconds)后程序就死在RTC_WaitForLastTask()上了，不知道是为什么？请高手帮个忙？
void time_adjust(ULONG seconds)
{
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
/* Change the current time */
RTC_SetCounter(seconds);
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
}
void RTC_SetCounter(u32 CounterValue)
{
RTC_EnterConfigMode();
/* Set RTC COUNTER MSB word */
RTC->CNTH = CounterValue >> 16;
/* Set RTC COUNTER LSB word */
RTC->CNTL = (CounterValue & RTC_LSB_Mask);
RTC_ExitConfigMode();
}
void RTC_WaitForLastTask(void)
{
/* Loop until RTOFF flag is set */
while ((RTC->CRL & RTC_FLAG_RTOFF) == (u16)RESET)
{
}
} |
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楼主
