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@ -23,11 +23,11 @@ For R1 I got rid of the Padauk MCU without increasing the chip count!
# Build instructions: # Build instructions:
1) Send gerber files from /hardware to your favorite board house 1) Send gerber files from /hardware to your favorite board house
2) Build the project using assemble.sh - this will also try to burn the main ROM using Minipro. Dependencies: [CC65] (https://github.com/cc65/cc65) and a way to burn the ROM's. 2) Build the firmware using assemble.sh (macOS/Linux) - this will also try to burn the main ROM using Minipro. Dependencies: [CC65] (https://github.com/cc65/cc65) and a way to burn the ROM's.
3) Source the IC's - the spirit of this project is to contribute as little as possible to the global IC shortage and get used chips locally or from Ebay/AliExpress/etc. 3) Source the IC's - the spirit of this project is to contribute as little as possible to the global IC shortage and get used chips locally or from Ebay/AliExpress/etc.
4) Burn the ROMs. I use a TL866II Plus variant for the actual ROMs. 4) Burn the ROMs. I use a TL866II Plus variant for the actual ROMs.
5) Solder away 5) Solder away. If you can solder 0805 components(poorly), you should be fine. Some optional components (the microUSB connector, the 3v3 regulator, and the RF-module) require a bit more skill.
6) For the PS/2-keyboard I use the 6522's Shift Register, PB6, and a 74xx74 flip flop. See my R1 Hardware overview at 7:46: https://youtu.be/w5cA64xof2I?t=466 This is now included on the board - instead of a PS/2 connector which can be harder to source I went with a USB-A-connector. 6) For the PS/2-keyboard I use the 6522's Shift Register, PB6, and a 74xx74 flip flop. See my R1 Hardware overview at 7:46: https://youtu.be/w5cA64xof2I?t=466 This is now included on the board - instead of a PS/2 connector which can be harder to source I went with a USB-A-connector. Keyboard plugs straight into the board.
7) Enjoy! 7) Enjoy!
Optional: Optional: