This is the ROM you need.
https://www.exxosforum.co.uk/atari/store2/#0050

There is also a dedicated ROM decoder.
https://www.exxosforum.co.uk/atari/store2/#0248

Finally got the new BOM done. Several parts are out of stock on JLC. I've got them on order but be a couple weeks to get parts. No idea how much the PLDs will end up. It's a case of paying for stuff and JLC will figure it all out later kinda thing :roll: So I hope the PLD price will be cheaper. I've...

I doubt you would even see the tests running going that fast

Different speeds, different mounting and pin options different voltage combinations? God knows, I just went to Mouser and used a better parametric search. Found myself a nice OSC, better than the ones I used before. Just they are 6pin not 4 pin :roll: so I will have to edit the PCB and hope there i...

Why does there have to be 25 different versions of the same part

Heatsinks come.



I will have a look at the install again and go back to "page 1" when I can. But hands hurting bad again, so might not be able to do much.

So nothing can ever be simple can it.. My current PCB company who I actually like, my project manager informed me she has left the company :roll: I think she was one of the few Chinese people who actually understood what I was talking about. I really don't want to start messing about with someone ne...

Cyprian wrote: ↑Sun Apr 21, 2024 10:40 am Btw, does this problem viewtopic.php?p=114064 also occur with ST536?

viewtopic.php?f=90&t=6962

Difficult to say without looking at TOS sources. But I'd assume TOS "pings" the floppy drives and if it gets a reply then the drive is there. Then it must access more info like getting FAT and then fails. So sounds like corruption somewhere between the 1772 to DMA or DMA to the main databu...

The Chinese will be producing or selling them recycled for a long time to come :) That's likely true yes, but I'm sure a lot of people here will tell horror stories of using such chips from China already. Buying used through-hole parts is difficult and time consuming enough to test. Not so simple w...