There's not a need to clear EEPROM. Whatever is written to EEPROM next will overwrite the old contents.
It's certainly possible to clear the EEPROM by writing all ones or all zero to it but it doesn't serve a useful purpose to do so. I'm pretty sure SimpleIDE doesn't include a "clear EEPROM" feature.
You don't. There's normally no reason to do so. When you load a new program into the EEPROM, it entirely replaces the 32K (or first 32K if larger) of the EEPROM. The EEPROM loader doesn't touch any EEPROM beyond 32K unless you're using one of the compile modes that specifically uses more than 32K.
If, for example, your objective is to annul a previously-uploaded program because of some activity it causes on the Prop's pins, just upload the following program:
Comments
It's certainly possible to clear the EEPROM by writing all ones or all zero to it but it doesn't serve a useful purpose to do so. I'm pretty sure SimpleIDE doesn't include a "clear EEPROM" feature.
That's it; nothing more is required.
-Phil
-Phil