[avrdude-dev] Decreasing programming speed for mega88

[Tomas Bergh]

Good morning gentlemen,
I am not sure of how this kind of mailinglist works and since the forum at 
http://savannah.nongnu.org/support/?group=avrdude allmost seems to be dead I 
try this type of sendout instead. If this is the wrong way of doing it, please 
dont be angry on me!

I have built a galvanically separated programmer for avr devices and got some
problems when I am programming the mega88 device. Usually I use ponyprog but 
since it is not supporting the mega88 device I try with avrdude. I am able to 
program my device when running at 8MHz, external crystal, but not with 20MHz, 
external crystal. The high fusebit-byte is left unchanged and the low fusebit 
is set to 0xf7. One thing that is interesting is that I can program the device 
with 8MHz and then change the crystal and the device then seems to work fine at 
20MHz! This makes me suspect that my programmer is alittle slow so I would like 
to set down the programming speed of avrdude. Does anyone know how to do this? 
My girlfriend will be happy if you can help me solving this problem since she 
think I spend a hell too much time with this, and that is true because this 
d...n programmer has taken more than 2 months to make by now, and still doesnt 
work! I am one inch from surrendering!

Hope you can help me!


/Tomas Bergh 
Sweden