J.Bakshi wrote: > If you read my previous posts, you can see that I am seriously > searching for a circuit of USB based PIC programmer. What do you intend to do with this circuit? Are you looking to license a design or build your on programmer on the cheap? If the former, I have a very nice and robust USB PIC programmer that is working very well. It takes care of various details that the other USB programmers I've seen ignore. If you just want something cheap for yourself, go buy a PicKit2. Unless you're really off the deep end on the time/money tradeoff scale, you can't compete with it's price. ****************************************************************** Embed Inc, Littleton Massachusetts, (978) 742-9014. #1 PIC consultant in 2004 program year. http://www.embedinc.com/products -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist