Read, Program and Debug the SXKEY using a QBASIC-program (QBL99V3.BAS) ---------------------------------------------------------------------- If you only want to use the SXBLITZ-protocol on a SXKEY (rev-E or -F, thus with encryption) to READ and PROGRAM a SX28-chip, the recipe is very simple: * Create a program with SXKEY28L.exe and fill a SX28 with "Program" (your prototype) * Start the QBASIC-program (set the COMport on 1 or 2 in the second line!!) and give as command: (READ) * In the DOS-directory you will find now the files: * READ_KEY.TXT (with the content of the SX28 in readable form) You can rename that file and use this name for programming SX28-chips in the field. * DISDEBM.TXT (disassembled content of SX28). (Also the still "unknown" DEBUG-codes) * Program a new SX28-chip with the command:

(Program) * You can write your own VERIFY-command in QBASIC if you like. If you like to use the DEBUG-facility: * Fill the SX28-chip with the DEBUG-command in SXKEY28L.exe and QUIT * In the QBASIC-program start with (READ) and then (DEBUG) * The ESC-key give you the possible commands. Nb: look in the file DISDEBM.TXT to see what particular debug-code the program: SXKEY28L.exe has created.