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Solving the global IC shortage by reusing old stuff!
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C++ 7.3%
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Anders Nielsen b4973d05d2 Wireless nRF24L01+ bootloader added! 
No more Padauk PMS171b!
2022-04-03 14:13:47 +02:00
build Wireless nRF24L01+ bootloader added! 2022-04-03 14:13:47 +02:00
hardware Wireless nRF24L01+ bootloader added! 2022-04-03 14:13:47 +02:00
software_linux Wireless nRF24L01+ bootloader added! 2022-04-03 14:13:47 +02:00
abn6502rom.s Wireless nRF24L01+ bootloader added! 2022-04-03 14:13:47 +02:00
assemble.sh Wireless nRF24L01+ bootloader added! 2022-04-03 14:13:47 +02:00
burncrom.sh Wireless nRF24L01+ bootloader added! 2022-04-03 14:13:47 +02:00
crom.s PCB Silkscreen annotations added 2021-10-30 14:18:58 +02:00
License.md PCB Silkscreen annotations added 2021-10-30 14:18:58 +02:00
memmap.cfg Wireless nRF24L01+ bootloader added! 2022-04-03 14:13:47 +02:00
README.md Wireless nRF24L01+ bootloader added! 2022-04-03 14:13:47 +02:00
userland.s Wireless nRF24L01+ bootloader added! 2022-04-03 14:13:47 +02:00

README.md

ABNielsen.com 6502 Single Board Computer R1 This is a 6502-based complete single board computer intended to help during the global IC shortage. Why use new chips when you can reuse scrap?

Check out the (old) project on HackADay if you want to read more and see some pretty pictures :)

https://hackaday.io/project/181897-abnielsencom-6502-sbc

R1 will get its own separate project on HackADay - in celebration that I got rid of the Padauk MCU without increasing the chip count!

Build instructions:

  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.
  3. Burn the ROMs. I use a TL866II Plus variant for the actual ROMs.
  4. 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.
  5. Solder away
  6. For the PS/2-keyboard I use Ben Eater's (a.k.a. Dieter Müller's) interface: https://www.reddit.com/r/beneater/comments/mjeilv/keyboard_interface_diagram/
  7. Enjoy!

Optional: Setup SSH keys with a Raspberry Pi, connect an nRF24L01+ compatible module to it and compile the wireless bootloader code in /software_linux

License: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) https://creativecommons.org/licenses/by-nc/4.0/