apdskIIread | ||
ROMS | ||
board_01.jpg | ||
board_02.jpg | ||
board.jpg | ||
invalid.png | ||
README.md | ||
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Apple Disk II PROM Verify
For test Disk II Interface Card
341-0009 Apple Disk II 13 Sector Interface Card ROM P5 (BOOT) 341-0010 Apple Disk II 13 Sector Interface Card ROM P6 (LOGIC) 341-0027 Apple Disk II 16 Sector Interface Card ROM P5 (BOOT) 341-0028 Apple Disk II 16 Sector Interface Card ROM P6 (LOGIC) 341-0027-A Apple Disk II 16 Sector Interface Card ROM P5A 1981 (BOOT) 342-0028-A Apple Disk II 16 Sector Interface Card ROM P6A 1981 (LOGIC)
Hardware requeriment:
- Arduino IDE
- Arduino Mega 2560
Compatibility with BIPOLAR PROMs:
N82S135 MMI 6309-1 MMI 63S281 TBP18S22 TBP28L22 MB 7118 AM27S23 74S471 74LS471 uPB421
Schema:
------+-------------- PROM | ARDUINO MEGA ------+-------------- VCC | +5V a0 | 22 a1 | 24 a2 | 26 a3 | 28 a4 | 30 a5 | 27 a6 | 25 a7 | 23 g1 | 31 g2 | 29 q0 | 32 q1 | 34 q2 | 36 q3 | 38 q4 | 39 q5 | 37 q6 | 35 q7 | 33 GND | GND ------+--------------
Board to connect PROM:
Program check:
Valid PROM:
Invalid PROM:
This is free open-source software, distributed under a very liberal license (the well-known MIT license). It may be used for any purpose, including commercial purposes, at absolutely no cost. Just download it and use it.