[En-Nut-Discussion] newbie question to simple demo

[Michael Jones]

Hallo,

If you know that you don't have a 32K XTAL you may want to rebuild the
Nut/OS Libraries (follow the instructions) and specify your main XTAL speed
e.g. NUT_CPU_FREQ = "14745600". That should solve that... (I know it does as
my board also has no 32K XTAL).


Cu,
Michael



-----Original Message-----
From: en-nut-discussion-bounces at egnite.de
[mailto:en-nut-discussion-bounces at egnite.de] On Behalf Of Olaf Schirm
Sent: Wednesday, March 22, 2006 10:41 AM
To: Ethernut User Chat (English)
Subject: Re: [En-Nut-Discussion] newbie question to simple demo 


Well, today I did another test, using an off the shelf ATMEL Mega128 board
by OLIMEX.
The good news is, the simple demo with LEDs on is now working as it should
do!

One of the main differences between my board and the OLIMEX is that they use
the
XTAL Pin 18/19 and connect the 34kHz crystal.  As my board does not use the
crystal,
these Pins are open. Could this be cause the problem? Perhaps NUT OS somehow
needs
this crystal in the default configuration of STK200.

If this is plausible I could do the microscopic soldering (as soon as I have
a crystal)
to the pins and give it a try.

kind regards
Olaf



> -----Ursprüngliche Nachricht-----
> Von: "Ethernut User Chat (English)" <en-nut-discussion at egnite.de>
> Gesendet: 22.03.06 09:23:42
> An: "Ethernut User Chat (English)" <en-nut-discussion at egnite.de>
> Betreff: Re: [En-Nut-Discussion] newbie question to simple demo 


> At 00:09 22.03.2006 +0100, you wrote:
> 
> >Would be interesting to know why it is better to Vcc.
> 
> The ATmega got symmetrical outputs and thus can equally drive
> sink and source. But good PCB designs do have better GND
> paths.
> 
> 
> >Problem occurs as soon as I add   the libs and the --defsym=main=0 which 
> >gets rid
> >of the main reference error. Doing the trick with redefining the main to 
> >something_main
> >as you described in an other thread, leads to new errors. ,
> >still lost somehow,
> >any further suggestion where to look?
> 
> Not really. I'd suggest to pack all your application files
> (including not working binaries) in a zip file and send
> it to my private email (not to the list, please).
> 
> Harald
> 
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> En-Nut-Discussion mailing list
> En-Nut-Discussion at egnite.de
> http://www.egnite.de/mailman/listinfo.cgi/en-nut-discussion


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