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Re: [avr-chat] ATmega32 @ 16MHz : fuse bits ??
From: |
Peter Fuhrmann |
Subject: |
Re: [avr-chat] ATmega32 @ 16MHz : fuse bits ?? |
Date: |
Fri, 11 Nov 2005 05:11:35 +0100 |
User-agent: |
KMail/1.7.2 |
On Friday 11 November 2005 04:54, Vincent Trouilliez wrote:
> The best I could figure out for a 16MHz crystal clock source is:
>
> CKOPT = 0
> SU = 11
> CKSEL 3:0 = 1111
>
> If anyone runs successfully an ATmega32 with a 16MHz crystal, what
> settings did you use ?
I use the same settings for CKOPT and CKSELwith a Meag32, and it work fine.
The SUT Fuses should not matter for the Osciallator.
> So I would be very grateful if someone could tell me what's wrong in my
> clock bits, and also, if anyone in France or nearby (Joerg ?! ;-), has
> the facility to get the fuses back with parallel mode programming, I
> would be soooo happy.
There mgith be another chance: I guess Your Atmega just doesnt like your
Chrystal, so you could try using anotherone, maybe from some old hardware
that you've got flying around anyway. Or you Programm a second Atmel to
generate a 100kHz clock or something, and inject it to the XTAL1 pin of the
not working Atmel.
I was often able to rescue mine that way, when they were in some strange
setting(yes, connecting other chips to the SPI, and then forgetting a pullup
on the CS line is not a goog idea....). You might need to tell your
programming software to be slower than normal then, but I think you know how
to do that.
Regards, Peter
- [avr-chat] ATmega32 @ 16MHz : fuse bits ??, Vincent Trouilliez, 2005/11/10
- Re: [avr-chat] ATmega32 @ 16MHz : fuse bits ??,
Peter Fuhrmann <=
- Re: [avr-chat] ATmega32 @ 16MHz : fuse bits ??, Vincent Trouilliez, 2005/11/11
- Re: [avr-chat] ATmega32 @ 16MHz : fuse bits ??, David Kelly, 2005/11/11
- Re: [avr-chat] ATmega32 @ 16MHz : fuse bits ??, Vincent Trouilliez, 2005/11/11
- [avr-chat] Crystals (was ATmega32 @ 16MHz : fuse bits ??), Graham Davies, 2005/11/11
- Re: [avr-chat] Crystals (was ATmega32 @ 16MHz : fuse bits ??), Vincent Trouilliez, 2005/11/12
- Re: [avr-chat] Crystals (was ATmega32 @ 16MHz : fuse bits ??), Joerg Wunsch, 2005/11/12
- Re: [avr-chat] Crystals (was ATmega32 @ 16MHz : fuse bits ??), Anton Erasmus, 2005/11/12
- Re: [avr-chat] Crystals (was ATmega32 @ 16MHz : fuse bits ??), Bob Paddock, 2005/11/12
- Re: [avr-chat] Crystals (was ATmega32 @ 16MHz : fuse bits ??), Graham Davies, 2005/11/12
- Re: [avr-chat] Crystals (was ATmega32 @ 16MHz : fuse bits ??), Graham Davies, 2005/11/12