[En-Nut-Discussion] nut/os-timer-PORTA-problem

[Ajit Ratnaparkhi]

Hi,
I am using Ethurnut2, ATmega128, and I am not using external memmory, I have
set configuration file accordingly, also I have not defined NUTMEM_STACKHEAP
in configuration file. Do I need to include this? And what is the solution
to make timer work while using PORTA simultaneously?

thanks and regards,
-ajit
On Wed, Apr 2, 2008 at 1:42 AM, Ernst Stippl <ernst at stippl.org> wrote:

> Hi!
>
> Which Ethernut board do you use?
> If it is Ehternut 1 or 2 or compatible using the ATmega128 CPU, this is an
> excerpt from the ATmega128 data sheet:
>
> Alternate Functions of Port A
> The Port A has an alternate function as the address low byte and data
> lines
> for the External Memory Interface.
>
> So, if you external memory, port A is needed for it.
>
> Regards
> Ernst
> -----Ursprüngliche Nachricht-----
> Von: en-nut-discussion-bounces at egnite.de
> [mailto:en-nut-discussion-bounces at egnite.de] Im Auftrag von Ajit
> Ratnaparkhi
> Gesendet: Dienstag, 01. April 2008 22:01
> An: en-nut-discussion at egnite.de
> Betreff: [En-Nut-Discussion] nut/os-timer-PORTA-problem
>
> Hi all,
>
> I am using nut/os for development of an embeded application as a course
> assignment.
> I am facing problem while using timer functions,
> The problem is,
>
> Whenever I output some value on PORTA, all the timer functions stop
> working
> like NutSleep(). NutSleep(ms) makes the program to sleep forever, instead
> of
> 'ms' amount of time. Some motors are connected to PORTA of the embedded
> device which I am working on. So to operate those motors I have to set
> PORTA
> to some value other than 0x00, and as soon as I change the value the
> timers
> stop working.
>
> Somebody please tell me what might be the problem, and what is the
> solution
> for it?
>
>
> Thanks and regards,
> - Ajit.
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