Collection of various development boards for microcontrollers (e.g., CH55x, CH32, PY32, STC8, STM32) and accompanying example software.

• UpdatedJan 5, 2025
• C

ZX Spectrum CPLD-based clone for rubber case

• UpdatedOct 2, 2024
• KiCad Layout

Traces, schematics, and general infos about custom chips reverse-engineered from silicon

• UpdatedMar 2, 2025
• Verilog

A collection of scripts and tools for Atmel ATF150x and GAL Programmable logic devices, some of the only standing active 5V programmable logic parts still available.

• UpdatedFeb 18, 2025
• Python

Mod kit for the Virtual Boy to make it output VGA or RGB video

• UpdatedOct 23, 2023
• Verilog

Improved design attempt for Amiga 500 in socket 68000 Accelerator, FastRAM and IDE Interface

• UpdatedAug 10, 2024
• Verilog

24-bit Stereo Audio DAC for Raspberry Pi

• UpdatedJan 27, 2020
• Verilog

Complex Programmable Logic Device (CPLD) Guide

• UpdatedJan 9, 2022
• Verilog

Replacement "chips" for NeoGeo systems

• UpdatedMay 28, 2024
• Verilog

Many peripherals in Verilog ready to use

• UpdatedDec 29, 2024
• Verilog

68000 Relocator with FLASH Kickstart

• UpdatedJan 20, 2023
• C

Karabas-128. ZX Spectrum 128k clone, based on CPLD Altera EPM7128STC100

• UpdatedOct 9, 2024
• VHDL

Amiga 600 Accelerator And RAM Expansion

• UpdatedJan 14, 2022
• C

Dockerized FPGA toolchain experiments

• UpdatedFeb 10, 2024
• Shell

An Arduino as an XSVF player to program CPLD's and FPGA's

• UpdatedOct 23, 2021
• C++

ZX Spectrum soundcard for NEMOBUS/ZXBUS

• UpdatedJan 28, 2025
• KiCad Layout

Easy-to-build minimalistic ZX Spectrum clone

• UpdatedAug 22, 2022
• KiCad Layout

ZX Spectrum 48 modern cpld based clone.

• UpdatedApr 28, 2024

Design files for the open-hardware NeoGeo MVS to AES converter

• UpdatedJan 4, 2025
• Verilog

Cheap & simple evaluation boards for Microchip ATF15xx CPLDs

• UpdatedFeb 17, 2024