Re: N8 - Troubleshooting

[lynchaj <lyn...@yahoo.com>]

Hi Douglas!  I think we fixed the reset circuit in the N8 design.  R3
is 10K ohm and C3 is 10 uF which should make for a large enough delay
for the power supply to stabilize.  C3 is much larger than in the SBC
V2.  Maybe try a larger value for R3 or C3?

Thanks and have a nice day!

Andrew Lynch

On Jul 21, 2:42 pm, Douglas Goodall <douglas...@mac.com> wrote:
> I believe the reset circuit is similar to the one in the SBC V2.
>
> It delays coming out of reset for  a while waiting for the power supply to
> stabilize. Then when you hit reset, that pulls down a line that rises
> back up more quickly than the power on sequence.
>
> Anyway that is what Andrew told me. There is some history to this and
> discussion about whether you should need to hit reset, or whether it
> should come up when power arrives.
>
> Douglas
>