[En-Nut-Discussion] Watchdog Debugging

Nathan Moore nategoose at gmail.com
Wed Sep 24 18:35:03 CEST 2008


On Wed, Sep 24, 2008 at 12:31 PM, Harald Kipp <harald.kipp at egnite.de> wrote:

> Nathan Moore wrote:
> > I don't see why you would consider this memory area to be on the heap in
> the
> > first place.
> > I tried something similar by chopping down the size of RAM that the Os
> was
> > configured to use,
> > and using that extra for keeping a thread history (last 10 threads), but
> > something funky kept
> > happening to that RAM -- either a bug in my code or something the Os did
> > that I didn't know about.
>
> Without reading the details of the original post, I may be able to help
> here. Depending on the platform, the runtime initialization may make use
> of the stack before/while entering NutInit. To reserve some RAM on the
> top, it may be required to inform the linker as well.
> GNU AVR linker option --defsym,__stack=0x10FF
> GNU ARM linker script section MEMORY (reducing the len parameter of the
> ram)


Wouldn't changing the upper limit in the configurator result in this being
done?



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