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Re: [AVR-Chat] Re: Debugwire, stk-500 and M168

2008-01-24 by John Samperi

At 08:25 AM 25/01/2008, you wrote:
>In my case, I'm talking to an STK-500 board, with no other "stuff" on
>the chip, just the bare minimum.

Not even the additional (4K7-10K) pullup on the reset line
as suggested by a very wise, much loved and respected member
of this forum? LOL

When the Dragon first come out, someone did some signal quality
tests on the reset line. It is an open collector, bidirectional
data link. A significant improvement in rise time was shown
with the external pull up (with printed graphs IIRC).

If DW misses a bit in comms, it seems that it gets in all sorts
of problems.

>Chip is running on internal RC clock.

1 or 8MHz?

Regards

John Samperi

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