Re: [Uisp-dev] downloading to atmega162

[Theodore A. Roth]

On Mon, 20 Sep 2004, Owen S. Osborn wrote:

>    I've been using uisp in dapa mode with a home brew cable, and this method
> has worked great with the atmega8 chip.  But while using this same method
> with the atmega162, uisp indicates that the chip is not responding and might
> be damaged.  (there is really no response as I probed the data out pin of the
> microcontroller with scope, and it is low during entire process).  I have 
> double
> checked the wiring, and tried 5 different atmega162 chips, but none respond
> (i have also tried with and without external oscillator).
>    The strange thing is that with the same wiring the atmega8 responds while
> the 162 does not, and I can't find anyting in the datasheets indicating
> additional connections are needed.  I've also tried avrdude, and the problem
> is the same: atmega8 works, while atmega162 doesn't respond.
>    Am I missing something here?, or could it be that all 5 chips I;ve tried 
> are
> dead?  any help is greatly appreciated....

Did you check the fusing of the mega162?

---
Ted Roth
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