Apple-2-HW/Apple2-IO-RPi
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327 Commits 1 Branch 6 Tags 26 MiB
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9 Commits

Author SHA1 Message Date
Terence Boldt
c0243f1e4d
Update to hardware revision 7 (#176) 
* Add jumpers for write protect and EPROMs

* Update to latest hardware revision 7
 2024-06-24 22:17:50 -04:00
Terence Boldt
c29232b407 Add power jumper and instructions 2022-02-16 21:45:22 -05:00
Terence Boldt
7a5dc8c541 Remove jumpers and EPROM support 2021-07-28 05:41:17 -04:00
Terence Boldt
ebcfeb3b9f Update board to support AT28C64B 2021-03-13 22:26:40 -05:00
Terence Boldt
a623d2f0ad Update board to support 8 bit data and 16x firmware 2020-12-29 19:54:22 -05:00
Terence Boldt
c93b54c669 Update schematic/PCB to work with more EPROM types 2020-12-13 22:19:04 -05:00
Terence Boldt
3880a1c30c Add ground wires to EPROM address lines 2020-12-13 00:43:19 -05:00
Terence Boldt
f045f4338f Update schematics and board 
- Remove resistor voltage dividers
- Change to 74LVC parts with +3.3V VCC
- Remove control lines
 2020-11-19 09:00:27 -05:00
Terence Boldt
dd5ddf4691 Update schematic and create rough PCB layout 2020-11-15 22:44:31 -05:00