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hoglet67/PiTubeDirect

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187
Rank 206,464 (Top 5 %)
Language
C
License
GNU General Publi...
Created over 8 years ago
Updated 3 months ago

hoglet67/PiTubeDirect

hoglet67

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Bare-metal Raspberry Pi project that attaches to the Acorn TUBE interface and emulates many BBC Micro Co Processors

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:

Benchmark results for the 65C02 Second Processor:

RGBtoHDMI

Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI

AtomBusMon

This project is an open-source In-Circuit Emulator for the 6502, 65C02, Z80, 6809 and 6809E 8-bit processors. See:

CoPro6502

FPGA implementations of BBC Micro Co Processors (65C02, Z80, 6809, 68000, x86, ARM2, PDP-11, 32016)

MMFS

Modern SD Card File System for Acorn 8-bit Machine (Master, Beeb, Electron)

BeebFpga

AtomFpga

Dave's version of the Acorn Atom FPGA, based on AlanD's original from stardot.org.uk

6502Decoder

6502 Protocol Decoder (for logic analysis capture files)

PiTubeClient

Raspberry Pi Tube Client

AtomSoftwareArchive

Software relating to the Acorn Atom Software Archive of stardot.org.uk

Z80Decoder

Z80 Protocol Decoder (for logic analysis capture files)

Ice40Atom

Acorn Atom implementation for the Ice40 (myStorm BlackIce)

6809Decoder

6809 / 6309 Protocol Decoder (for logic analysis capture files)

atf15xx_yosys

Design Flow for Atmel/Microchip ATF15xx CPLDs using Yosys and the Atmel Fitter

Ice40CPMZ80

Multicomp Z80 CP/M implementation for the Ice40 (myStorm BlackIce)

pico_bus6502

Experimenting with using Pico PIO as a 6502 Bus Interface

ElectronFpga

Ice40JupiterAce

Simple Jupiter Ace implementation for the Ice40 (myStorm BlackIce)

Ice40Beeb

BBC Model B implementation for the Ice40 (myStorm BlackIce)

Ice40LogicSniffer

BlackIce port of the Open Bench Logic Sniffer

Papilio_One_OLS

Open Bench Logic Sniffer (Demon Core, Verilog) (3.08 with edge triggers)

Atomulator

Atomulator is an Acorn Atom Emulator

Music5000

FPGA implementation of the 1980's "Music 5000" wavetable synthesiser

TubeULA

BBC Micro Tube ULA Image Processing Code

Z80Simulator

AtomGodilVideo

New Video Adapter for Acorn Atom implemented in a GODIL FPGA

BeebAccelerator

A high-speed replacement 65C02 CPU for the Beeb; meets timing at 80MHz, seems stable at 100MHz!

pico_atomvga

Chris Moulang's Pico-based Atom VGA Adapter

ReTuLaReMake

Open Source Tube ULA Remake

ADFS

Optima

Acorn Atom Emulator for the Raspberry Pi

ADFS130

BeebASM Source for various versions of Acorn ADFS 1.0x (Electron) and 1.3x (Model B)

pico-swram

Pi Pico acting as a 16K Sideways RAM for the Acorn Electron

HDLTutorial

A basic Verilog and VHDL tutorial

Beeb1MHzBusFpga

Beeb 1MHz Bus Fpga Adapter and related projects

6502Life

Experiments with Conway's Game of Life on the Acorn Atom and BBC Micro

BBCBasic4r32

A disassembly of BBC Basic 4r32

jan_vibe_archive

Jan Vibe's BASIC Programs Archive (freeware)

DSPFract

Papilio Duo port of DSPFract from Mike Field @ Hamsterworks

6502ClientROM

Dave's working disassembly of the Acorn 6502 Client ROM (version 1.10)

AtomRamAndNoiseKiller

8Kx8 Video RAM and Noise Killer for the Acorn Atom

SBC09

Respsitory for the SBC09 6809/6309 Board Design

pdp11pispigot

A port of Vol's Pi Spigot to the BBC PDP-11 Second Processor

hoglet67.github.io

PsionEditDebug

Disassemble of Psion Edit Debug ROM for the Acorn Atom

AcornSystemFpga

Acorn System 3/5 FPGA Clone

TubeSoftwareArchive

An archive of software for the family of BBC Micro Second Processors

BadApplePi

Bad Apple PiTube Player

SerialULA

Microtan65-FPGA

Tangerine Microtan 65 FPGA re-implementation

ElectronAP5

Electron AP5 CPLD Design

AtomVGAWing

Atom Y/Cr/Cb to VGA Video Converter

FpgaUtils

Atom FPGA Utilities ROM for AtomFpga and Atom2015

si5351standalone

Standalone I2C Controller for the SI5351A

IRtoRFpic

AtomKeyMatrix

New Atom Keyboard Matrix

AtomRAMTest

A memory test for the Acorn Atom that doesn't need working RAM to function

DragonKeyMatrix

A PS/2 to Dragon 32 Keyboard Matrix convertor in Verilog

NMOSCircuitExtractor

RAMMaster

RAM Master ROM Manager, written in 1985 by a much younger hoglet!

SRAMAdapterPCB

SOJ-32 to DIP-32 Adapter PCB for 512Kx8 SRAM

AtoMMC2Firmware

PIC/AVR Firmware for the AtomMMC interface

AtomRamRom

Phill's Atom RamRom board CPLD

rc_transmitter

A simple 2-channel 27MHz AM radio control transmitter for testing purposes

AtomLCD

Simple Atom LCD Driver for Portable Atom

AtoMMC2

AtoMMC2 SD Card File System for the Acorn Atom

sbc09_debugger

6809 Decoder Logic Analyser Adapter PCB

yarrb1-cpld

YARRB v2 CPLD Design Files

Digiac-Mac-III-FPGA

Digiac-Mac-III-FPGA