exxos's Atari, Amiga & retro forum

Obviously a blue meenie as he doesn't want to share his blueness.

Got my reset problem fixed and got some blue and even green now. Not sure where the black went :lol:

Trying to make people green with envy using a pull-up? ;-)

stephen_usher wrote: 31 Oct 2020 18:22 Trying to make people green with envy using a pull-up? ;-)

Nah, I'm starting to think there is something wrong with the DAC, so I'll order another from exxos.

Mono mode works great though and everything else works great

Edit:

Definitely thinking something odd eith this DAC as every time I reboot there's a good chance the colors will change :lol: it was a lovely shade of cyan just now.

:lol:

I've got the H5 on the bench today to try and work out what's broken with it as ive done all the fixes, am using good chips, etc.

This is what I get when we boot to a floppy in medium resolution.

Is the Shifter not changing res then?

stephen_usher wrote: 05 Nov 2020 17:56 Is the Shifter not changing res then?

No, it stays in low res

Does it look OK if started in low res?

I'm wondering if a data line isn't connected and hence the wrong data is going into a register. Either that it an address line and it's not writing the data into the right I/O port location.

I take it that you've 'scoped all the data and address lines.

And we're fixed.
RW on the shifter has a fault on the pcb, I fitted a bodge wire from pin 9 on IO port 1 to pin 31 on the shifter and were all up and running, so no wonder things were confused.