Overview I want to have some old computer with CP/M. I seen different variants, but somehow I found on the forum PCB named AUSHA. I order PCB and start assembling. This is single board computer with soviet union chips, easy to build. It has Z80 CPU, 64kb ram, 64kb rom, Serial and IDE connector, I/O ports. Author site about this computer here Schematic in gif BOM list in xls Keyboard connector pinout...
Overview After I order Apple-1 PCB and start solder I understand I want to have Apple-2 too. It’s a bit interesting computer from usage point of view. Also this is result of Mike Willegal work. Most important complexity in this board is EPROM chips. Now its possible to use only original one. Anyway I will try to solder and run this board. BOM list in xls Photos My computer (progress) up
Overview This instruction taked from forum maxiol BOM required to build this board. Firmware stm33 Firmware GAL Gerber files Config file az.ini example SD card content, example Driver azdrv sources. Booting instruction Turn on computer. Pull down and up after second ‘Restart’ flag Pull down and up after second ‘Run/Halt’ flag Random number and ‘@’ should be printed after. If not restart repeat steps from start. Enter 177226g Image 0 will be loaded....
Original floppy disk drive with MSX controller
Apple 1 ACI (Apple Cassette Interface). This is also result of reverse by Mike Willegal. Great work and looks close to original one. I was solder this pcb. BOM list in xls Schematic aci ACI prom Assembly manual from Mike Willegal in english Apple 1 cassette interface manual, original scan Photos Original front back My pcb up up