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

[Ajit Ratnaparkhi]

Hi Ernst,

thanks a lot for your help. Will try this to check whether external memmory
is really disabled or not. Actually to disable external memmory I just
removed external memmory related declarations from the configuration file
like,
NUTXMEM_SIZE = "28416"
NUTXMEM_START = "0x1100"
I removed above two declarations from the configuration file. can you tell
me any other way to disable external memmory if there is any?
your help is valuable.

thanx and regards,
-ajit.

On Wed, Apr 2, 2008 at 2:28 AM, Ernst Stippl <ernst at stippl.org> wrote:

> Hi Ajit!
>
> Besides setting the values to disable usage of external memory, have you
> tried to prove that your application does not use it?
> A way to do this would be to call NutHeapAvailable() and display the
> result.
> It must not be larger than 4096 (in any case, because this is the size of
> the internal memory), actually it must be considerable less: 4096 minus
> the
> stack size of (384 for "idle" plus 768 for "main") minus stack size of app
> threads minus variables allocated from heap minus some global vars.
>
> Regards
> Ernst
>
> -----Ursprüngliche Nachricht------discussion-bounces at egnite.de] Im Auftrag
> von Ajit Ratnaparkhi
> Gesendet: Dienstag, 01. April 2008 22:30
> An: Ethernut User Chat (English)
> Betreff: Re: [En-Nut-Discussion] nut/os-timer-PORTA-problem
>
> 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?
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>
> 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
> > -----Urspr=FCngliche 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.
> > _______________________________________________
> > http://lists.egnite.de/mailman/listinfo/en-nut-discussion
> >
> >
> >
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