Does anyone know of any source code that implements the XMODEM, YMODEM, ZMODEM, etc protocols for the PIC16CXX? I'm currently trying to transfer a 2K file between a PC and a PIC16F84. I'm planning on interfacing the PIC16F84 to a 16K x 8 bit serial EEPROM (Microchip 93C86 serial EEPROM) to allow sufficient storage capacity and also to a MAX-232A chip to allow RS-232 communications between the PC and PIC. Any help would sure be appreciated. Clint Epperson Draper Labs