awesome-electronics
abn6502
| awesome-electronics | abn6502 | |
|---|---|---|
| 2 | 4 | |
| 5,504 | 70 | |
| 1.3% | - | |
| 7.8 | 0.0 | |
| 29 days ago | over 1 year ago | |
| Assembly | ||
| Creative Commons Zero v1.0 Universal | GNU General Public License v3.0 or later |
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awesome-electronics
abn6502
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Simplest Kansas City Standard modem for a 6502 computer!
My code is a bit hard to read because of some APRS NRZ decoding mixed in with the KCS decoding but essentially I’m only measuring if the correct amount of cycles have passed(throwing away the other cycle data) and then detecting if the wave had a length above or below a threshold of $0600(somewhere around 1700Hz) timer1 counts (at 2MHz in my case). That leaves plenty of headroom but has pretty bad immunity to false zero crossings. You can have a look ca1irq: https://github.com/AndersBNielsen/abn6502/blob/main/abn6502rom.s
- I need help figuring out how to create a multiprocessor setup with 2 6502 CPUs.
- I want to make my graphics card on a pcb. Which software should I use to design the pcb?
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6502 Coding in C or C++?
I’m using it for mine - same memory map as Ben’s. I only use the assembler for now though but will use the compiler some time in the future. It’ll probably help you get an idea how to set it up: https://github.com/AndersBNielsen/abn6502
What are some alternatives?
PMW3360DM-T2QU - PCB design for Pixart PMW3360DM-T2QU
TaliForth2 - A Subroutine Threaded Code (STC) ANS-like Forth for the 65c02
Quatro - QUATRO is a quad VCA and mixer based on Veils, by Mutable Instruments. Original design by Émilie Gillet - CC BY-SA 3.0. Through-hole remix by Kevin Olivella.
hbc-56 - Homebrew 6502 on a backplane computer
Euclid_Probe - Euclid probe, a magnetically coupled Z Probe
lynx_hacking - Collection of Lynx demos, trial.
SeveredDuck36 - A 36-key split keyboard inspired by the Kyria and Arch-36
c64_asm_book_listings - Listings from Commodore 64 Assembly books
elelab_v2 - Cheap DIY lab system for hobbyists and the tinkering folk
mainspring - A CPU simulator framework built around, and to support the other tools under, the constraints of the first principles of computing project.
bitaxe - Open source ASIC Bitcoin miner hardware
apple2_hgrbyte - Explore the Apple 2 HGR amd DHGR esoteric screen layout with bit twiddling and byte manipulation.