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This repository contains the firmware and hardware design for a PIC18F-based
USB programmer for the 28Cxxx series of parallel EEPROMs. The firmware and
hardware design are licensed under the Simplified BSD License with some
additional restrictions; see LICENSE and LICENSE-MLA for more detail.
This project meets the requirements of the OSHW Definition. CadSoft EAGLE
design files and an example bill of materials can be found in the eagle
subdirectory. For those without access to EAGLE, a PDF of the schematic and
board layout is provided.
PCBs may be ordered from OSH Park.
Fully assembled and tested units may be purchased from Tindie.
The firmware requires the Microchip MPLAB XC8 compiler and the MPLAB X IPE (Integrated Programming Environment) be installed and added to the user's PATH.
To build the firmware, issue:
$ make all
To program the firmware using an attached MPLAB PICkit 3, issue:
$ make run
Other programmers may be used; see Makefile for more detail.
A cross-platform command line tool was developed to drive the programmer,
written in Go. Installing the eeprom tool requires Go 1.2 and libusb 1.0; see
Getting Started for more detail.
To install the eeprom tool, issue:
$ go get github.com/sstallion/go-eeprom/cmd/eeprom
Once installed, issue eeprom help for more detail about its usage.
All 5V single supply chips are supported for read and write operations. Extended functionality, such as page writes and chip erase are supported for Atmel AT28C and compatible families.
High-voltage programming is not supported.
Issues should be reported on GitHub. A wiki is also maintained, which contains additional documentation.