Firmware 0.6A-F14 now supports formatting the emulated HD20 disk from the Finder. This is handy for creating new hard disk images without the aid of programs like Mini vMac or Basilisk II. Just grab any random file of 100 MB…
Ta dah! I thought it couldn’t be done, but I used my hammer and tongs to smash HD20 emulation and floppy emulation into a single firmware version. No more re-flashing the board when you want to switch between emulation types;…
Firmware 0.4 adds support for writing to the emulated HD20 disk drive. No more read-only disks! I’ve tested it with a Mac Plus and a Mac IIsi, copying lots of files about and moving the mouse in crazy circles to…
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…
A number of people asked for a parts list and schematic for 68 Katy, so they could build their own version. Here it is! Please let me know if you find any errors. Parts List Motorola 68008 CPU, 8…
Both models of Floppy Emu boards are on sale this week, $10 off until December 5. If you’ve been holding off on getting one, now’s your chance! With the new HD20 firmware hopefully finished soon, the Floppy Emu board will…
I’ve fixed most of the outstanding bugs in the HD20 emulation firmware. If you’ve been holding out for a way to attach huge SD card storage to your vintage Mac, this new firmware version is actually worth using. It’s still…
Good news, HD20-ers! I have rudimentary HD20 emulation working now, and I was able to use it to boot my Mac Plus. This runs on the standard Floppy Emu hardware, which means the same hardware can function as a floppy…
Finally after nine months, a progress update on HD20 emulation! Back in February I wrote about my efforts to reverse engineer the Apple HD20, an external 20 MB hard drive for the Macintosh that was introduced way back in 1985.…
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