1.8 KiB
Executable File
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?
Complete hardware overview of R1:
Video about the wireless bootloader:
Check out the NEW project on HackADay if you want to read more and see some pretty pictures :)
https://hackaday.io/project/184725-abn6502-sbc-r1
For R1 I got rid of the Padauk MCU without increasing the chip count!
Build instructions:
- Send gerber files from /hardware to your favorite board house
- 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.
- 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.
- Burn the ROMs. I use a TL866II Plus variant for the actual ROMs.
- Solder away
- 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/
- 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/