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From: | Steve Franks |
Subject: | Re: [avr-chat] known issues with Mega168 and wdt.h? |
Date: | Mon, 1 May 2006 14:11:33 -0700 |
In addition (and this is, well, a bit hidden in the docs, and comes out rather unexpectedly at first), the WDRF bit in MCU[C]SR, while active (indicating a watchdog reset happened), prevents the watchdog from being disabled. Thus, a simple wdt_disable() is not sufficient after a watchdog reset. You *must* clear WDRF at some point before that.
Ah, that's it. wdt_disable() at the top of main() on the old architecture is sufficient. I guess *reading* wdt.h instead of *skimming* wdt.h would be advised. In hindshight I realised I opened wdt.h mostly to make sure #ifdef Mega168 was in it and glossed over the commentary. Thanks, Steve
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