> Turn your PICStart programmer over.... what revision is it.. Lots of pre > rev > 4 ones floating around. It is the last digits in your serial number. -R > something..... Does it have the current PUM inside? the current > firmware? > > Rich P > The PICSTART has an PUM inside and I was able to figure out how to download the latest HEX file to the unit. Can anyone recommend an .asm file for flashing LED's with an F877? This part may be a lot more complicated but they are the only chips I have at the moment. I have a 1998 bound data sheet for the F873, F874, F876, and F877. The document number isDS30292A. I also have a 1997 "Mid-Range MCU Family Reference Manual" document number DS33023A. What I can't find are the Instruction Set commands for programming this PIC in assembler. Where can I obtain this information? It seems it would be really hard to program the PIC without this information. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist