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Re: [avr-libc-dev] variable that survives reset?
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From: |
Artur Lipowski |
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Subject: |
Re: [avr-libc-dev] variable that survives reset? |
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Date: |
Fri, 28 Nov 2003 08:31:48 +0100 |
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User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.6b) Gecko/20031126 Thunderbird/0.4a |
Jörgen Birkler wrote:
...
> Arthur, you mentioned init3, maybe i shouldn't rely on
> that I can check the MCUCSR in my main() function?
If you want to make some decisions about variable initialization, init3
is a good place for that.
Eg. I sometimes use watchdog do wake up uC from power down and basing on
information from MCUCSR I can choose:
- powerup reset - do nothing -> normal avr-libc startup
- watchdog reset - skip avr-libc initialization -> "goto" main
Regards,
--
Artur Lipowski