AVR-Chat

On Mon, 17 Jul 2006 01:25:55 -0700 (PDT), you wrote:

>This kind of problem is already discussed in this group, but I  could never finaly gather what might be a 'standard way' to wake up a dead AVR when osc fues bits are wrong programmed. Let's assume I have an AVR on my desk and do not know how osc fuesbits are programmed. Is the only way trying every possible configuration? This way doesn't seem a wise one to me.

Apply an external clock (e.g. 2MHz) and program the fuses to the correct config for the osc you will
be using. 


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>Hendy Eka <grabtheedge@yahoo.com> wrote:                                  Thanks before for the pleasant to read and may give an idea to my 
> problem.
> 
> I had program an ATMEGA8535 using my min. system with ex. crystal 
> oscillator. Actually never at this time (I always use calibrated 
> internal osc, i scared).
> 
> I use 4 MHz crystal oscillator but at those time i don't know what's 
> the problem my ATMEGA8535 doesn't reponse anymore. I use ponyprog 
> programmer.
> 
> Is this true using osc pin in ATMEGA in order to wake up my avr again?
> 
> :(
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