I'm using a PicStart Plus programmer whit MPLAB v.3.12.00 I tryed to read the calibration parameters of a pic1400/jw (9630 SAT, made in Thailand) but the result was invalid data. I used this procedure: 1) Enable pic programmer (set pic1400 on programmer status -> device) 2) Read device (checked the calibration data box) 3) Window -> Calibration data.. The calibration data displayed was: Kref: Invalid Data Kbg: Invalid Data Kthrm: Invalid Data Ktc: Invalid Data Kin: 255 Kwdt: 255 Note: the device is new, never UV erase. Where is the problem? I can't delete (and program) the devide before read this data, they are too important for the 16 bit A/D. Thank's. =================================================== Alboni Giorgio Faenza (Ra) ITALY E-Mail: rac1337@racine.ravenna.it http://www.geocities.com/SiliconValley/Heights/5444 ===================================================