Which ones allow write and read to program memory? Can you say interactive Forth? John G. > -----Original Message----- some of the newer flash parts allow you to modify program memory, don't know details but I'm sure others do Welcome to the list! Mark Mike M wrote: > > "i basically want to be able to store a program in the serial eeprom and then run it through the pic. wich means the pic must extract the code and then execte it. any ideas ??"