Be aware that MPLAB 4.12.12 is an interim release. I had to go back to 4.12 because the __CONFIG directive would always be loaded at location 0 (zero.) That's bad and causes all sorts of problems. That was for a 17 series part. Maybe the 16s are not doing that. But, if it is telling you that you have no configuration word, most likely the default word is what you are using. That is usually a bad thing. I figgered the problem by looking at the map file. You are generating a map file aren't you? :-) :-) They really are only useful when you have these sorts of problems. GL, Walt... -----Original Message----- From: Markus Falkenau [mailto:Tacciness@AOL.COM] Sent: Tuesday, November 30, 1999 10:23 AM To: PICLIST@MITVMA.MIT.EDU Subject: Problems with programming the 16F877 Can anyone please send me a working simple programm for the 16F877 (.hex and .asm file). All programms, I've burned on the F877 yet didn't work, on every Port-pin there has been 1,2V. With the F84, I've never had any problems, all programms worked, so I guess it might be because of the MPASM. My programmer (P16PRO) always says :" Configuration word is not included with hexfile" when I open a file assembled by the MPASM, but nevertheless my programmer burns the file perfectly on the pic. I hope someone can help me