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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by steve34613[/i] [br]I've just purchased the PIC Programmer and I just can not get it to program 18F2550 chips. The COM port of the XP computer matches the COM port selected on the Programmer's software. Chip select is 18F2550. Loaded 2550 compatible hex code. When clicking the program icon, the small bar graph moves from left to right indicating that the software is placing the code on the chip. But when I install the chip on a know good PCB, there is NO code on the chip at all. Am I missing something? Any help would be greatly appreciated. Steve [/quote]    Insert an Image File Check here to include your profile signature.