Come si fa l'erese?
Leo, sei sicuro che quello sketch faccia l'erase?
Causes a chip erase to be executed. This will reset the contents of the flash ROM and EEPROM to thevalue '0xff', and clear all lock bits. Except for ATxmega devices which can use page erase, it isbasically a prerequisite command before the flash ROM can be reprogrammed again. The only exceptionwould be if the new contents would exclusively cause bits to be programmed from the value '1' to '0'.Note that in order to reprogram EERPOM cells, no explicit prior chip erase is required since the MCUprovides an auto-erase cycle in that case before programming the cell.
fai un Erase del micro prima di impostare i fuse, vero?