Re: [Amforth] measuring time

[Mark M. <m.m...@gm...>]

Working with the ATMega328, I found that I had to set the prescaler
(TCCR0B) after I assigned the interrupt vector. So, you might try

: tim0start ( -- )  tim0ini +tim0int  5 TCCR0B c! ; (remove the prescaler
store from tim0ini )

It worked for me.

BTW thanks to the list for help with the lfuse clock issue... obviously I
got it solved!


On Fri, Jan 20, 2012 at 7:07 AM, Robert Epprecht <epp...@so...> wrote:

> Matthias Trute <mt...@we...> writes:
>
> My chip is labelled ATMEGA-328-PU
> I have included atmega328p.frt
> Hope that's ok?
>
> > Are the numbers behind the T-labels correct (memory mapped addresses,
> > somewhere around $40ff) for the Atmega328p?
> hex TCCR0A .
> 44
>
> > Otherwise it looks like you're programming
> > the wrong controller.
> ???
>
> > Loosing the ACM device is really strange,
> yes
>
> > need-to-reflash by writing a single byte is
> > very unusual as well.
> well this single byte was enabling an interrupt,
> but strange anyway...
>
> Robert
>
>
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