Changed subject from no subject You should always give your messages a subject. >> Is it possible to make a very simple circuit to program EVERY 16F >> and >> 18F pics using ICSP ? If so, can you help me with directions on web >> where i can find such info ? > > That's possible, but the problems are the reliability and the > accompanying PC software. Check for instance www.ic-prog.com. If you visit that site you'll find that 1. IC Prog is free software for programming PICs on a number of supported programmers. 2. The programmers that it supports are JDM Programmer (Ludipipo) Conquest programmer TAFE Programmer TAIT 'Classic' Programmer Parallel TAIT programmer Fun-card Programmer SCHAER Programmer ProPic II Programmer STK200 Programmer AN589 Programmer WILLEPRO Programmer Fluffy2 Programmer DL2TM Programmer ER1400 Programmer If you look at http://www.ic-prog.com/programmers.html you'll find the above list and if you click on the entries you will in many cases see a circuit. Note that they are not all PIC programmers and anot all PIC programmers may support all PIC types. but a bit of browsing will give you a good idea of what can be achieved. Russell McMahon -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist