Re: [avr-gcc-list] software restart

[Larry Barello]

Most AVRs have internal pull-up on Reset line.  Check your data
sheet...

----- Original Message -----
From: "Sander Pool" <address@hidden>


>
> Those would be the nitty gritty details, yes :-)
>
>     Sander
>
> ----- Original Message -----
> From: "Theodore A. Roth" <address@hidden>
> >
> >
> > On Thu, 16 Jan 2003, Sander Pool wrote:
> >
> > :)
> > :) I you have a spare IO line can't you pull _RESET_ down whenever
you
> like?
> >
> > I think you would need an external pull-up resistor for this to
work since
> > the IO pins are tri-stated (HI-Z) on reset. Without the pull-up,
you would
> > have the pin driving the RESET essentially floating, which might
have
> > undesirable results.
> >
> > You RESET handler would need to set DDRxn and PORTxn both to 1.
Then you
> > could generate a RESET by setting PORTxn to 0.
> >

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