Hello,

I'm trying to change P1_CF from the factory default (0xFE) using the latest version of FLIP. I'm able to do pretty much everything (erase/program/verify/run/etc.) with the board, except modify the value of P1_CF (or for that matter P3_CF & P4_CF). When trying to modify any of these values, FLIP returns a "time out" or "checksum" error. I've tried modifying this value on a fresh part before & after the initial programming (same result).

The device is a AT89C5115.

Does anyone know of any special steps required to program P1_CF that I may be missing? Or is this potentially a bug in the FLIP software?

Better yet, anyone know of method to configure P1_CF via the ISP?

Best Regards,

-Rod