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Amstrad CPC CTC DART

Simple Z80 CTC and DART board compatible with the Amstrad CPC and MX4 connector

assembled-board

Objective

Prototyping board to learn about the Z80 CTC and DART, and how to write Z80 assembly using an Amstrad CPC.

Background

Part of a number of modular cards using Z80 associated peripherals and the Amstrad CPC.

See also; Amstrad CPC 2855 PIO, Amstrad CPC Z80 CTC and Amstrad CPC Z80 DART

Backplane

CPC Amstrad Expansion Backplane by revaldinho

IO Addressing

The IO Address can be selected using jumpers, supporting the following base address.

  • F8XX
  • F9XX
  • FAXX
  • FBXX

The CTC is then adressed at XXEO and the DART at XXF0.

See CPC Wiki IO Port Summary for a list of known IO ports used on the Amstrad CPC.

Testing

The CTC DART board has been built and simple testing has been completed on an Amstrad CPC 6128.

Note also an FTDI Serial Adapter was used to connect to a Tera Term session.

PCBs

PCBs are available from Seeed Studio.

Components

This Digi-Key List contains all components excluding the Z80 CTC, DART and FTDI Serial Adapter.

Assembler

RASM

Resources

Zed80 Website

CPCWiki

Z80 Application by James W Coffron ISBN 0-89588-094-6

Acknowledgements

@revaldinho

Don Prefontaine

Peter Murray

@EdouardBERGE

@johnwinans

Release History

Version 1.0

  • First Release