I'll put it on my todo Next up I think will be to socket the Shifter so I can figure out how IC specific this is or if it's general.exxos wrote: ↑Fri Mar 09, 2018 7:12 pmInteresting!
At some point I was running the shifter on its own 5V regulator (driven from the 12V line).. The shifter doesn't exactly get stable voltage, even if you add 4,700uF across it!
So it may be worth trying a 5V regulator on the shifter ( break its 5V feed of course) and see if its really voltage related or noise related.
Also, I started thinking ... since we control the rate the MMU latches words (we can AND DE with more things than just 2MHz) ... maybe it's possible to run the Shifter on non-multiples of 32MHz.
Let's say we let the MMU latch 2/3 of the time. The Shifter would then need to be clocked at 48Mhz, and the resolution (in mono) would be 960x400.
There might be things I haven't thought through yet here, but maybe. If so, it would mean another oscillator ... and I would need to move to a 22V10 to test ...