[En-Nut-Discussion] Port to a non ethernut board

Harald Kipp harald.kipp at egnite.de
Fri Aug 25 12:09:46 CEST 2006


Hi Marc,

A special fuse setting is not required
http://www.ethernut.de/en/isp/fuses.html

As you specified
NUT_CPU_FREQ = "16000000"
also no 32kHz crystal is needed.

May be your external RAM is not working?

I'd suggest to add an RS232 output and upload Basemon. This
program starts without external RAM and checks various
hardware functions.
http://www.ethernut.de/pdf/enhwm13e.pdf
Page 9ff

Harald

At 21:17 24.08.2006 +0200, you wrote:
>Hi,
>
>On Thu, 24 Aug 2006 15:05:59 -0300
>"Thiago A. Corrêa" <thiago.correa at gmail.com> wrote:
>
> > Hi,
> >    atmega128? I was in a similar situation when I first started out
> > messing with ethernut, actually I had a lockup exactly where you
> > describe. The problem were fuse bits if I recall it correctly, or one
> > of the chip pins were not soldered correctly, not sure. Might be worth
> > to check those out.
>
>I'm shure the solderings are fine. I can flash and run my own programs
>without problem.
>Does NutOs require special fuse settings? As far as I see, at this
>early stage in NutOs (NutInitXRAM) should run fine with the same
>settings as with my programs...or do the gcc / linker magics for NutOs
>require special fuse bits set?
>
>Thank you
>
>Marc




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