Josh,

you can integrate the programming of the 16F877 EEPROM data memory with the
normal device programming by adding something along the lines of this at the
end of your code:-


        org 0x2100
        DW 0x01
        DW 0x02
        DW 0x03
        DW 0x04
        DW 0x05
        DW 0x04
        DW 0x03
        DW 0x02
        DW 0x01

Neil

        -----Original Message-----
        From:   Josh Koffman [SMTP:joshy@MB.SYMPATICO.CA]
        Sent:   Wednesday, May 03, 2000 7:28 PM
        To:     PICLIST@MITVMA.MIT.EDU
        Subject:        16f877 Data Memory

        Greetings all.
        I have yet another question. Someday I hope to be able to ask non
stupid
        questions, like that whole 24 bit adc thread...wow that's over my
head.
        Anyways :)

        I am curious as to whether the data storage memory on the 16f877 can
be
        programmed in a programmer. I think the memory on a 16f84 can. The
        reason I want to do this is in my current project, eventually the
user
        will be able to store information to the eeprom for later recall. I
am
        trying to build this project in little steps so that when I get to
the
        end and it doesn't work, I will know what parts work, and hopefully
be
        able to solve everything. I don't want to implement the eeprom
writing
        yet, but I want to test to see if I can read it properly and act on
the
        information I get back from it. Is there any way to store data in
the
        eeprom without having a whole bunch of eeprom writes at the
beginning of
        my program? That just seems like it will take up a whole bunch of
code,
        plus if it doesn't work I won't know where my problem is, in the
reading
        or the writing. Thank you in advance for your help!

        Josh Koffman
        joshy@mb.sympatico.ca