STK500 AVR ATmega8 signature problem

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#1
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Well.., this is strange. Pulled a AT90S8515 (programming fine) out of the STK500, moved ISP cable to SPROG2, plugged in ATmega8, made appropriate MAKE & Project changes. Now AVR tells me that the signature is wrong for the selected device..., and it IS wrong. In fact, it changes each time I read it! Anyone have an idea *what* is going on???

John

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ISP programing speed is too fast for the default clock on the Mega8. Set the programming speed down and all will be well.

Cheers,

Tom