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???
12/10/10 10:01
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#180053 - Not a good way to handle a watchdog!
Responding to: ???'s previous message
Hitesh Mahant said:
Timer0 designed to be 8bit auto-start for 76800Hz, watchdog I am recalling at 2.5msec with help of counter.

Do you mean you are "kicking" the watchdog from a timer interrupt? That is a Really Bad Idea!

The watchdog is supposed to verify that your code is working correctly - but a timer interrupt could easily continue to function when, for example, your code is "locked-up" in a loop...



List of 8 messages in thread
TopicAuthorDate
problem with watchdog of 8253            01/01/70 00:00      
   oscillator starts at wrong frequency?            01/01/70 00:00      
      Watchdog rate?            01/01/70 00:00      
   example            01/01/70 00:00      
      How to post formatted source code            01/01/70 00:00      
   Not a good way to handle a watchdog!            01/01/70 00:00      
   If I recall            01/01/70 00:00      
   Avoid the AT89S8253...            01/01/70 00:00      

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