Arduino-based AT89C2051 programmer

Parallel programmer for the AT89C2051 chip

piotrb5e3

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Description

I once bought an AT89C2051 chip just because it was cheap. I couldn't find a non-rs232 programmer for it, so I made my own.

Details

Motivation

Being young and stupid I bought a microcontroller without checking for programmer and programming software availability. Fortunately, the programming protocol is simple, and I was able to make my own programmer based on an Arduino.

Features

Flashes IntelHex files
Verifies uploads
Erases flash
Dumps flash from chip to a file
Verifies chip ID
Works on Linux
Probably usable on Windows
Requires only a small software modification to allow for AT89C4051 programming

Guide

A more detailed guide to using this programmer can be found in this instructable.

Components

1 × Arduino Uno
1 × Prototype shield V.5
1 × 20 pin ZIF socket
1 × EL817 Opto and Fiber Optic Semiconductors and ICs / Optocouplers and Optoisolators
3 × 1K resistor