As part of the 6809 Microcomputer there is a need to write/verify/erase EEPROM several times. Instead of buying an expensive programmer, an Arduino and a few shift registers will achieve the same ...

Manual rom write: Write single bytes with a interactive interface. Manual rom read: Read single bytes with a interactive interface. Following modes are only meant to be activated by the client ROM ...

This is a useful addition to my previous article “Arduino EEPROM”. The article is still available. I have provided a link here for convenience https://www.edn.com ...