Still no joy. We erase then program config then the program. The program is there when checked on the promate but the config is blank. Larry At 08:48 PM 5/31/03 -0400, you wrote: > > I just had a client call with a problem programming a 16F873 processor > > using ICSP. He finally got the chip to erase, program, and verify except > > for the configuration word. Are there any hidden special gotchas for that > > sequence that I may be missing. He seems to be following the flowchart for > > the proper programming sequence as shown in the flash memory programming > > PDF file from the web site. > >I sortof remember that there was an error in the 16F87x programming spec >where something should be written all 1s instead of 0s (or the other way >around). I remember that it seemed odd the way it was specified. When it >didn't work, I tried the way that made more sense, and that did make it >work. I'm home now and don't have my notes available, sorry. > >Let me know if you want more details and I will try to dig them out. > > >***************************************************************** >Embed Inc, embedded system specialists in Littleton Massachusetts >(978) 742-9014, http://www.embedinc.com > >-- >http://www.piclist.com hint: To leave the PICList >mailto:piclist-unsubscribe-request@mitvma.mit.edu Larry G. Nelson Sr. mailto:L.Nelson@ieee.org http://www.mchipguru.com -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics