Answering my own post:
After a tear down, it turns out that the 2Kbyte EEPROM failed, it self-erased to all FFs. I'll be tossing out that batch of chips. Burned the same data into a new (different brand) chip and I'm back in business.
This post was last modified: 02-11-2020, 12:13 AM by AlanMcR.
Answering my own post:
After a tear down, it turns out that the 2Kbyte EEPROM failed, it self-erased to all FFs. I'll be tossing out that batch of chips. Burned the same data into a new (different brand) chip and I'm back in business.