exxos's Atari, Amiga & retro forum

I've burnt TOS 2.06 into two 27C010 EPROMs, put them back into my STe (with the correct EPROM jumper settings) and all appears to work fine.
But if I run the ROM test in the Exxos diagnostic cartridge I get a CRC error.

Is this "normal" or have I made a mistake somewhere along the way?

Pacman wrote: 03 Dec 2024 14:54 I've burnt TOS 2.06 into two 27C010 EPROMs, put them back into my STe (with the correct EPROM jumper settings) and all appears to work fine.
But if I run the ROM test in the Exxos diagnostic cartridge I get a CRC error.

Is this "normal" or have I made a mistake somewhere along the way?

I can't remember the reason why, but IIRC this is normal.

rubber_jonnie wrote: 03 Dec 2024 15:22 I can't remember the reason why, but IIRC this is normal.

Strange, but I think you're right according to this posting, though I'm not getting any errors while booting.
Prior to burning the two EPROMs I used Ppera's ROMsplit program to split the single TOS file into two parts (high and low). I'm almost sure I clicked on its "Fix CRC for TOS 2.06" button, so either I didn't or I'm getting error messages in the diagnostic software regardless.

Does the diagnostic cart know about TOS2.06? If not, then you'd probably expect this.

BW

Badwolf wrote: 04 Dec 2024 12:37 Does the diagnostic cart know about TOS2.06? If not, then you'd probably expect this.

Good point! I should pop my original TOS 1.62 ROMs back in (and adjust the 3 ROM-jumpers accordingly) to check, but that could probably explain the errors I'm getting.
I suppose if I had really done something incorrectly during the splitting and burning of the new TOS image files into the EPROMs I wouldn't be able to boot and/or I'd get some error messages while booting (like the poster in that other thread I referred to did).