(like the MC34064) to give a bit more margin for noise etc, but the 1K
should still work.
Something to check though is that Pin 1 (PEN) should be pulled up also.
HTH
Ivan Vernot
realtimedesigns
----- Original Message -----
From: "Yang Wang" <yang_w2000@hotmail.com>
To: <AVR-Chat@yahoogroups.com>
Sent: Saturday, August 28, 2004 4:20 AM
Subject: [AVR-Chat] Problem with Atmega128 reset line
> Hi all,
>
> Can we connect the reset line and +5V line with a 1k pull-up
> resistor, to keep the reset line high? Out of the 8 circuit boards
> with the same schematics I am building, 6 of them work in this way,
> while the other two do not. For these two problematic ones, the reset
> line is always jumping between 2.1V and 4.7V, not stable at all.
>
> I feel like this 1k pull-up resistor setup should work for keeping
> the reset high. Or am I wrong, and do I have to connect the reset
> line with +5V directly?
>
> Thanks a lot!
>
> Yang
>
>
>
>
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