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Jarno Lehtinen 32a2ce380e
Update README.md
2019-02-13 09:40:01 +02:00
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C64_matrix.sc Update C64_matrix.sc 2019-02-12 20:35:08 +02:00
README.md Update README.md 2019-02-13 09:40:01 +02:00
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README.md

Poor man's "Keyrah" to connect C64 keyboard to USB (for BMC64 emulator)

Controller

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)
  • 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 configfile. 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

Testing

Pins I used

//KeyBoard Arduino Pro Micro 
//  Pin     Pin     Label			GPIO	pin (kirjaimet = columns (rivit), numerot = rows (otsikot))
//   20       5       2 - SDA		PD1		A
//   19       6       3 - SCL		PD0		B
//   18       7       4 - A6		PD4		C
//   17       8       5			PC6		D
//   16       9       6 - A7		PD7		E
//   15       10      7 - 		PE6		F
//   14       11      8 - A8 		PB4		G
//   13       12      9 - A9 		PB5		H
//   12       13      10 - A10 		PB6		0
//   11       14      16 - MOSI 	PB2		1
//   10       15      14 - MISO 	PB3		2
//   9        16      15 - SCLK 	PB1		3
//   8        17      18 - A0 		PF7		4
//   7        18      19 - A1 		PF6		5
//   6        19      20 - A2 		PF5		6
//   5        20      21 - A3 		PF4		7
//   4        N/C
//   3        1       1 - TX		PD3		8
//   2        N/C
//   1        11      8 - A8 		PB4		I

Issue

  • "+", "-", "£", "@" and "*" doesn't produce GFX-chars when shifted

Links