AVR-Chat

On Tue, 19 Jul 2005 03:06:16 -0000 you wrote:

>--- In AVR-Chat@yahoogroups.com, Ralph Hilton <ralph@r...> wrote:
>> On Mon, 18 Jul 2005 18:21:09 -0000 you wrote:
>> 
>> >Dear everybody!
>> >I have some problem with ATmega64.when I set its Fuse_bits to use 
>an 
>> >external cristal(7.32 MHz)as system clock, it goes wrong and I 
>can't 
>> >reprogram it through ISP any more.can anyone help me?
>> >thanks! 
>> 
>> Which fuse bits are you setting exactly? Is your xtal wired with 2 
>capacitors?
>> What are you programming with?
>> --
>> Ralph Hilton
>> http://www.ralphhilton.org
>> C-Meter: http://www.cmeter.org
>> FZAOINT http://www.fzaoint.net
>
>I set cksel 3..0 and ckopt unprogramed(1), with two 22pf capacitors.
>I'm writing my programs with codevision2.38 and proram it with 
>ponyprog.

I had a lot of problems with Ponyprog. I suspect that your problem wil go if you use an STK500 or
AVRISP with AVRstudio or the programmer built into CVAVR.
--
Ralph Hilton
http://www.ralphhilton.org
C-Meter: http://www.cmeter.org
FZAOINT http://www.fzaoint.net