Re: [avr-gcc-list] Problem with interrupt handler?

[Chris Baugher]

On Fri, 19 Oct 2001, Joerg Wunsch wrote:

> Chris Baugher <address@hidden> wrote:
> 
> > static unsigned char ix=0;
> > 
> > SIGNAL(SIG_OVERFLOW0)
> > {
> >     ++ix;
> > }
> 
> Btw., the variable `ix' should be declared `volatile'.

Well, actually it will only be used in that ISR. And it needs to hold it's
value between calls, so it should really be local.

SIGNAL(SIG_OVERFLOW0)
{
    static unsigned char ix=0;

    ++ix;
}

C|

> 
> -- 
> J"org Wunsch                                         Unix support engineer
> address@hidden        http://www.interface-systems.de/~j/
> 
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