[En-Nut-Discussion] .bss was Stuck !! Fixed (bug in NutOS)

[Marc Wetzel]

Hmmm.

The fun part of you solution is...
that this code (MCUCR=BV(SRE) | BV(SRW);) is already called in NutInit()
So I suppose you are on the wrong lane.

Marc

> -----Original Message-----
> From: en-nut-discussion-bounces at egnite.de 
> [mailto:en-nut-discussion-bounces at egnite.de] On Behalf Of NGB
> Sent: Friday, April 02, 2004 11:28 AM
> To: Ethernut User Chat (English)
> Subject: Re: [En-Nut-Discussion] .bss was Stuck !! Fixed (bug 
> in NutOS)
> 
> 
> You don't need to call it, the startup code calls it 
> automatically Just paste anywhere in your code
> 
> Nic
> 
> 
> Quoting Michel Hendriks <unreal at home.nl>:
> 
> > When would you need to call that function?
> > >From NutMain?
> > 
> > NGB said:
> > > A short stroll on avr freaks, and I found out that you 
> actually need 
> > > to
> > enable
> > > the xram yourself, before bss is cleared in .init4
> > > This problem would only appear if you have large arrays like I do 
> > > and .bss
> > end  is
> > > outside internal SRAM.
> > >
> > > The function below fixed it.
> > >
> > > void InitXramAccess (void) __attribute__ ((naked)) __attribute__ 
> > > ((section
> > (".
> > > init1")));
> > >
> > > void InitXramAccess (void)
> > > {
> > > 	outp(BV(SRE) | BV(SRW), MCUCR);
> > > }
> > >
> > > Nic
> > >
> > > -------------------------------------------------
> > >
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> > 
> > 
> > 
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> 
> 
> 
> 
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