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Re: [AVR-Chat] STK500 problem?

2005-06-03 by John Samperi

At 02:05 PM 3/06/2005, you wrote:

>All the others report the incorrect chip signature (it changes). The chip 
>that I can program reports the correct signature.
>
>I am really lost, not sure what to try!

I don't have a STK500 so I can't be sure of the following.
However I have an AVRISP which I believe is similar and
you may want to check your programmer's clock speed. Keep it
at about 230KHz as it can only be a maximum of 1/4 the
chip's clock frequency. As the chip usual come with the
internal 1MHz clock enabled, the programmer will play up
if it is set too high, say 500KHZ or 930KHz.

Regards

John Samperi

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