HD20 Firmware 0.3: Fixes for 020 and 030 Macs
I’ve fixed an HD20 emulation bug that caused occasional errors on faster 68020- and 68030-based Macs. The symptom was a “NEG COMMAND SIZE” error message on the LCD screen, and I/O failure. This version also fixes the “BAD FUSES” error that a few people with older boards encountered when running this firmware.
Another note: the firmware requires that the HD20.dsk file on your SD card occupy a contiguous range of sectors. If it doesn’t, you’ll see an “image not contiguous” error on the LCD. The easiest way to ensure all your SD card files are contiguous is to copy them all to your PC, delete everything on the SD card, then copy the files from your PC back to the SD card. You can also use a defragmentation tool on the SD card if you want to get fancy.
- Fixed NEG COMMAND SIZE error that sometimes appeared on faster Macs
- Fixed BAD FUSES error that appeared on older Floppy Emu boards
HD20 Firmware 0.3A-F65
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sweet!
I get Wrong CLPD – 11
when i try this firmware.
my emu is on emu from 2. I had one that I burnt up, and the other one was screwy, Now I seem to have one that works from the 2.
but just this firmware doesn’t seem to be working for me.
never mind. there is 2 things i had to update.
for smart guys like you, this stuff is simple 🙂
not its saying my image is contiguous.
i will disk utility it.
alright… i got ” BIG DISK ” and its booting my Mac LC! sweetness!
Certain situations it seems much faster then the HD20, and certain situations it seems a little slower.
but it works, i occasionally get a Sync error on the Floppy emu and i have to reboot.
if i take my time and wait for things to load up etc… then it seems to work fine, like if a program is loading up and i decide to go to control panel, it may lock up.
but keep in mind even the real HD20 was a little funny sometimes, sometimes its like the controller would reset and it would reinitialize the hd… so maybe the HD20 method was never perfected from apple… its still really cool though man.!
Hmm, that doesn’t sound normal. What exactly is the error message on the Floppy Emu LCD? What machine was this with, and running which OS? If you can find a semi-reliable way to repro the problem, that would be great. Between myself and a few other people, we’ve tested this successfully on five machines now without any errors or lockups. Was this with the board you said was already acting screwy, and having occasional trouble even with the regular floppy emulation firmware? If so, that could be the problem.