Karabas-Go

A Spartan-6 based devboard to emulate different retro-computers.

The hardware design and documentation are licensed under Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International.

FPGA cores, the firmware and other software parts are licensed by their own licenses.

What's on the board:

• A 25k LE's Spartan-6 FPGA
• RP2040 MCU
• 4x USB Ports
• 2x 2MB 10ns SRAM chips
• 32MB SDRAM chip
• VGA 8:8:8 output
• On-board FT812 video processor
• 16-bit audio DAC
• SAM2695 midi synth
• 2x Sega/Atari compatible DB9 joystick ports
• CF card
• 2x microSD cards
• Tape In/Out interface
• FDD port
• Buzzer
• DS3221 RTC
• 1kB EEPROM
• ESP8266 Wi-Fi module

PCB

The latest PCB revision number is Rev.B4. PCB Changelog: https://github.com/andykarpov/karabas-go/blob/master/PCB_CHANGELOG.md

Warning: Rev.B4 could be a bit incompatible with the 3D enclosure models due to microSD cards shifted a bit forward.

FPGA Core Sources

• Boot Menu Core: https://github.com/andykarpov/karabas-go-core-menu
• Test Core: https://github.com/andykarpov/karabas-go-core-test
• TS-Conf Core: https://github.com/andykarpov/karabas-go-core-tsconf
• ZX Spectrum Next Core: https://github.com/andykarpov/karabas-go-core-next
• Karabas Pro Core: https://github.com/andykarpov/karabas-go-core-profi
• PCXT Core: https://github.com/andykarpov/karabas-go-core-pcxt
• NES Core: https://github.com/andykarpov/karabas-go-core-nes
• Radio RK86 Core: https://github.com/andykarpov/karabas-go-core-rk86
• Alf Core: https://github.com/andykarpov/karabas-go-core-alf

The Firmware Sources

• https://github.com/andykarpov/karabas-go-firmware

Dev Tools

• https://github.com/andykarpov/karabas-go-tools

Pre-production renders: