Bare-metal Raspberry Pi project that attached to the Acorn TUBE interface and emulates many BBC Micro Co Processors
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Failed to load latest commit information.
kicad
src
tools/vasm
vidcore
.gitignore
LICENSE
README.md

README.md

PiTubeDirect

PiTubeDirect is a low cost Second Processor project for Acorn's 8-bit machines (Beeb, Master, Electron, Atom) which uses two cheap chips to interface a Raspberry Pi to the Tube connector.

The Pi emulates one of a number of CPUs, and also the Tube interface chip.

A Pi Zero can emulate a 6502 Second Processor running at 274MHz.

For more information, see the project Wiki.

Here's the minimal configuration, using a Pi Zero and a DIY two-chip level shifter: minimal configuration

Benchmark results for the 65C02 Second Processor: benchmark results