mirror of
https://github.com/mcgurk/Arduino-USB-HID-RetroJoystickAdapter
synced 2024-11-13 12:45:01 -05:00
71 lines
2.6 KiB
Markdown
71 lines
2.6 KiB
Markdown
# Poor man's "Keyrah" to connect C64 keyboard to USB (for BMC64 emulator)
|
|
|
|
|
|
|
|
## Building
|
|
- Solder all keyboard connector pins to Arduino Pro Micro.
|
|
- You can solder Restore key (connector pin "I") paraller to some other pin. I soldered "I" and "G" to Arduino pin A8. (this is actually not needed, because there is one free pin left). [Pins I used](https://github.com/mcgurk/Arduino-USB-HID-RetroJoystickAdapter/blob/master/C64_keyboard/README.md#pins-i-used).
|
|
- You can also connect LED of C64 to VCC/GND of Arduino. I used 220ohm resistor.
|
|
|
|
## Firmware/flashing
|
|
- Download Soarer controller firmware: https://geekhack.org/index.php?topic=50437.0
|
|
- Install Arduino IDE
|
|
- Connect RST to GND couple of times to get Arduino Pro Micro to programming mode (notice that com-port is different in programming mode in Windows)
|
|
- Flash firmware
|
|
```
|
|
& "C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude" -C"C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf" -v -p m32u4 -c avr109 -P COM5 -b 57600 -U flash:w:firmware\Soarer_Controller_v1.20_beta4_atmega32u4.hex:i
|
|
```
|
|
|
|
## Setup
|
|
- Download [config file](https://github.com/mcgurk/Arduino-USB-HID-RetroJoystickAdapter/raw/master/C64_keyboard/C64_matrix.sc). Check pin order to match your setup.
|
|
- Compile and upload config file to Arduino Pro Micro
|
|
```
|
|
.\scas C64_matrix.sc C64_matrix.bin
|
|
.\scwr C64_matrix.bin
|
|
```
|
|
|
|
## Menu key
|
|
Commodore key + F7 sends F12 (Menu)
|
|
|
|
## Testing
|
|
- https://keycode.info/
|
|
|
|
## Pins I used
|
|
```
|
|
// Pin Label
|
|
// 20(A) 2(D2/PD1)
|
|
// 19(B) 3(D3/PD0)
|
|
// 18(C) 4(D4/PD4)
|
|
// 17(D) 5(D5/PC6)
|
|
// 16(E) 6(D6/PD7)
|
|
// 15(F) 7(D7/PE6)
|
|
// 14(G) 8(D8/PB4)
|
|
// 13(H) 9(D9/PB5)
|
|
// 12(0) 10(D10/PB6)
|
|
// 11(1) 16(D16/PB2)
|
|
// 10(2) 14(D14/PB3)
|
|
// 9(3) 15(D15/PB1)
|
|
// 8(4) A0(A0/PF7)
|
|
// 7(5) A1(A1/PF6)
|
|
// 6(6) A2(A2/PF5)
|
|
// 5(7) A3(A3/PF4)
|
|
// 4 N/C
|
|
// 3(8) TX(D1/PD3)
|
|
// 2 N/C
|
|
// 1(I) 8(D8/PB4)
|
|
```
|
|
|
|
## Issue
|
|
|
|
- "+", "-", "£", "@" and "*" doesn't produce GFX-chars when shifted
|
|
|
|
## Links
|
|
|
|
- https://geekhack.org/index.php?topic=50437.0
|
|
- https://deskthority.net/workshop-f7/soarer-s-keyboard-controller-firmware-t6767.html
|
|
- Newest I found was Soarer_Controller_v1.20_beta4.zip from 26.10.2013
|
|
- https://www.waitingforfriday.com/wp-content/uploads/2017/01/C64_Keyboard_Schematics_PNG.png
|
|
- http://kookye.com/wp-content/uploads/2016/02/Pinout-ProMicro.jpg
|
|
- I used this as starting point: https://github.com/abzman/Keyboard-config-file/blob/master/C64_matrix.sc
|
|
- C64-emulator for Raspberry Pi 2/3: http://accentual.com/bmc64/
|