In the MegaSTE, check jumpers W401 and W402 for the correct settings:
https://docs.dev-docs.org/htm/search.ph ... +Schematic

Atarian Computing wrote: ↑

Sat Aug 01, 2020 11:32 am

Here's the article @czietz mentioned:

Well, I didn't want to post it due to copyright reasons. Thank you.

@derkom: If you look at pins 2A,B,Y and 3A,B,Y of the schematic, you can see what I meant: BR of the disabled CPU is grounded.

Check the signal on the scope. E.g., if for some reason you have very slow edges, and depending on the threshold voltage setting of your LA, you would see an uneven duty cycle.

Two remarks: 1. I have confirmed with someone who actually owns the respective hardware that the circuit described in c't magazine... Hilfskraft 68000-Prozessor trotz PAK68/2 Roland Beck Praxistip, PAK-Erweiterung, Prozessor-Umschaltung für 68000 und 68020 parallel, für Atari ST und Amiga, TOS c't 7...

Remark: If you disconnect MAD8 (as well as MAD9, of course), you end up with 256k (not 512k) of RAM. A nice way of emulating an original 260ST prototype .

An original ST keycap is just the opposite: dark plastic on the inside, light plastic on the outside. IMG_4387.JPG I guess a Falcon keycap is just the other way around with light plastic on the inside? I don't think it's painted and you're therefore wrongly "accusing" the seller. Maybe a Falcon owne...

Smonson wrote: ↑

Sun Jul 19, 2020 11:45 pm

I did check the menu at the desktop to see if I could manually add the letters at one point, but the option was greyed out [...] I'm on TOS 1.04.

Note that on TOS 1.0x you have to first select an existing drive icon (e.g. floppy drive) by clicking on it before the menu option becomes active.

I checked the first 8 sectors and they have stuff in them that looks like a TOS partition table in a hex editor - compared with the information I've been able to find online. At first glance I'd agree that this looks like a proper root sector. So, just to avoid any misunderstanding: If you reboot w...

Iirc, AHDI does a compulsory bad blocks check after formatting. I.e. basic writing and reading must already work with you HW. Otherwise, AHDI would have marked all sectors as bad. You could check the SD card's contents on another machine: is there a root sector? Does it look correct?

Drive letters are assigned to the partitions automatically at the next reboot when AHDI is loaded.