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Re: [AVR-Chat] STK500 ISP failure

2005-02-16 by Russell Shaw

Mark Nowell wrote:
> Russell
> 
> I don't have a storage scope (must get one - cheap enough now) but I have 
> checked mosi/miso/reset signals with my old cro and the STK500 is definitely 
> trying to talk to the 168 but giving up pretty quickly. Does changing miso 
> suggest that the 168 is trying to respond? Or perhaps the STK sets a pull-up 
> on this line.

Data is sent into the cpu via MOSI, and it responds on MISO. The sclk pin
is used too.

> As per my earlier email, the STK and cable have been tested against my 
> earlier M8 version of the board and work fine.
> 
> I take it from your responses that I should reasonably expect a brand new 
> 168 with external xtal to accept ISP programming?

I'd think so.

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