在启用WWDG的情况下进入暂停模式会导致重置

事实证明，这不是halt（）的问题，而是RTC_AlarmCmd（）中的错误的副作用。我在调用halt（）之前调用了RTC_AlarmCmd（DISABLE）（我不想进入Active Halt Mode）并且在函数RTC_AlarmCmd（）中发生了WWDG超时。问题在于此代码段：
 
 
 / *等到ALRxWF标志置位* /
 while（（alrawfcount！= ALRAWF_TIMEOUT）＆amp;＆amp;（temp1 == RESET））
 {
 alrawfcount ++;
 }
 
 行temp1 =（uint8_t）（RTC-> ISR1＆amp; RTC_ISR1_ALRAWF）;
 应该在循环内部或while语句的一部分。因为它是我们总是迭代0xffff次，这是WWDG发生时。



以下为原文





It turns out that this isn't a problem with halt() but rather the side effect of a bug in RTC_AlarmCmd().  I was calling RTC_AlarmCmd(DISABLE) prior to calling halt() (I didn't want to go into Active Halt Mode) and the WWDG timeout was occuring while in the function RTC_AlarmCmd().  The problem is in this code snippet:


/* Wait until ALRxWF flag is set */
         while ((alrawfcount != ALRAWF_TIMEOUT) && (temp1 == RESET))
     {
       alrawfcount++;
     }

The line temp1 = (uint8_t)(RTC->ISR1 & RTC_ISR1_ALRAWF);
should be inside the loop or part of the while statement.  As it is we always iterate 0xffff times and that's when the WWDG occurs.