hi! i built a 16F84 programmer, like NOPPP but serially controlled - after an idea i read here, but my own cheezy version of it. it works well and the beauty of the serial interface is that it can work with almost any computer. obviously i have the schematics and the source code. now i would like to also program the 12C508 and 9, the 16C622 and the 16C505. what i look for is documents detailing the programming sequences for these new (to me) chips. i did the 16F84 sort of by reversing the NOPPP code, and doing a bunch of trusting, but for the newer chips i'd like to program from real docs. i poked around at microchip and on the WWW but i just don't seem to know what to call what i am looking for. if it's really simple, slap me around with a large trout (but *after* you gently explain it to me)! thanks. -- rob -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu