In test mode, only one would be active, since both channels being measured are in the same chip.
In normal mode, both signals would be toggling, as the CPU samples all of the pots.
Terms like washed out and smudged are not helping me to understand what you are seeing.
Also, simply not triggering your scope properly could generate waveforms that would fit these
descriptions.
If you trigger the scope properly, a waveform won't "dance around". It may get wider, or have
its amplitude vary.
Did you look at the DAC output when in test mode?
Starting to think I am not helping much here.
Bob
--------------------------------------------
On Sun, 7/3/16, noddyspuncture@hotmail.com [PolySix] <PolySix@yahoogroups.com> wrote:
Subject: Re: [PolySix] Another P6 with all LED's lit....
To: PolySix@yahoogroups.com
Date: Sunday, July 3, 2016, 2:41 PM
Thanks for the reply Bob,
On pin 32 with the scope there is
"something" but it looks like a small washed out
or smudged waveform. By that I mean not a nice crisp square
or sine - more like a blurred 'audio' signal would.
If I then switch the 'test' switch it gets smaller
in amplitude and then seems to dance around a
bit...!
One thing I
did notice when investigating data from the front panel is
that CN11-6 (INH 1) is constantly low and CN11-7 (INH 2) is
constantly high. Should these not alternate between low and
high...?
Cheers,Tom