Post by thread:Programming

Can anyone tell me if the 16C74 or 16C73 can be programmed on the fly (in-circuit). If so what is the best way of doing it? If not can it be programmed down it's serial port?

> > Can anyone tell me if the 16C74 or 16C73 can be programmed on the fly > (in-circuit). You are aware that since these parts are EPROM based and not EEPROM based that they can only be programmed once. Unless you do the somewhat odd practice of bathing the entire board with UV light. > If so what is the best way of doing it? All the 16CXX parts can be programmed serially AFAIK. You need clock and data to RB6 and RB7, 13V to MCLR, and GND. > If not can it be programmed down it's serial port? Nope. Can you give some detail as to what your trying to do? BAJ

>Can anyone tell me if the 16C74 or 16C73 can be programmed on the fly Yes! Read 30228f.pdf avaliable at http://www.microchip2.com/products/micros/progspec.htm or ftp.futureone.com/pub/microchip/download/lit/progspec Thomas Vegeby

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