https://github.com/pastcompute/pi400-27c010-reader

Raspberry Pi 27C010 EPROM reader inspired by https://www.instructables.com/Raspberry-Pi-Python-EEPROM-Programmer/
https://github.com/pastcompute/pi400-27c010-reader

Last synced: 16 days ago
JSON representation

Raspberry Pi 27C010 EPROM reader inspired by https://www.instructables.com/Raspberry-Pi-Python-EEPROM-Programmer/

• Host: GitHub
• URL: https://github.com/pastcompute/pi400-27c010-reader
• Owner: pastcompute
• Created: 2022-01-02T01:51:18.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2022-01-02T02:06:23.000Z (almost 3 years ago)
• Last Synced: 2024-10-03T12:23:47.811Z (about 1 month ago)
• Language: Python
• Homepage:
• Size: 979 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# EPROM (27C010) reader for Raspberry Pi

Tested on a pi400.

Inspired by https://www.instructables.com/Raspberry-Pi-Python-EEPROM-Programmer/

See https://hackaday.io/project/182779-late-90s-gps-time-unit-repair-1024-week-bug-fix/log/201888-reverse-engineering-first-steps for context

Rough diagram of pinout:

![Pinouts](eprom-reader-pinout.png)

Note that pins 3&5 have hard wired pullup resistors and thus have to be used for CE# and OE# pins only.

Photo of quick and dirty circuit on connected to Pi400:

![Breadboard picture](eprom-reader-breadboard.png)

Added CC license because the original article on instructables was also CC

The eprom.sh was a experiment to do the same thing using bash.

It works, but very very very very slowly (e.g. takes over 10 hours to read!)

Also I had a bug with the data lines backwards at one point, so the flip.py program was used to fixup the image file.