First, is the EEPROM on the nano Carrier board required? Second, if I accidentally wrote gibberish to mine, how should I reprogram it? Is there a bin file that I can download to write to it? What is the best program to use to do such?
There are two eeproms
on the nano module.
on the nano devkit carrier.
If you accidentally overwrite (2), then it will not cause problem. However, if you accidentally overwrite (1), then you will fail to boot or fail to flash. If you hit any problem, come back and we will teach you how to restore.
There is no bin file for eeprom, we just use i2c tool to do the work.