I am developing a program in a windowed PIC14000. It is factory preprogrammed with calibration data for oscillator, wdt, bandgap etc. Problem: First time I erase it I will loose the calibration data in the chip. I trying MPLAB 3.40. For now, I read the target, then use Window\Calibration Data... , and then copy-paste each value to a special file within project, keeping all chips all calibrating data. And when programming, the same way reverse. Easy to make errors. There should be, and probably is, a way to save calibration data to a file for each of my developement chips, so I can import them when programming. I use 6 numbered chips, cycling them between programmer, prototype and eraser. Don«t tell me about emulator; there is nor space, power or money enough ;) Regards /Morgan / Morgan Olsson, MORGANS REGLERTEKNIK, SE-277 35 KIVIK, Sweden \ \ mrt@iname.com, ph: +46 (0)414 70741; fax +46 (0)414 70331 /