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[avr-gcc-list] RE: AVR-GCC-list Digest - Watchdog Reset

From: Steve Franks
Subject: [avr-gcc-list] RE: AVR-GCC-list Digest - Watchdog Reset
Date: Fri, 8 Jul 2005 16:37:29 -0700

This got me to thinking about whether ram contents are preserved during
SLEEP_MODE_POWERDOWN, and if so, are they guaranteed to be preserved?  I
don't think this is really covered well in most of the datasheets...


Steve Franks
Staff Engineer & General Manager
Franks Development, LLC
(520) 312-0089 voice
(815) 301-8333 fax

> ------------------------------
> Message: 2
> Date: Fri, 08 Jul 2005 07:51:49 +1200
> From: Gavin Jackson <address@hidden>
> Subject: RE: [avr-gcc-list] Watchdog Reset
> To: 'Ram Kumar' <address@hidden>, address@hidden
> Message-ID: <address@hidden>
> Content-Type: text/plain
> The micro resets and RAM contents remain the same except for 
> those memory locations your C-startup code initialises such 
> as static variables and those variables in the section of 
> memory that gets zeroed at startup. You'll need to place 
> variables in the .noinit section if you don't want the 
> startup code to modify them.
> __attribute__ ((section (".noinit")))
> Gavin Jackson

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