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You are here: Home / Topics / problems with How to display text on 16×2 LCD using 8051 microcontroller (AT89C51) project

problems with How to display text on 16×2 LCD using 8051 microcontroller (AT89C51) project

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Projects › Projects › problems with How to display text on 16×2 LCD using 8051 microcontroller (AT89C51) project

  • This topic has 1 reply, 1 voice, and was last updated 13 years, 10 months ago by nikhil.
Viewing 2 posts - 1 through 2 (of 2 total)
  • Author
    Posts
  • July 27, 2011 at 4:48 pm #1227
    nikhil
    Participant

    i read and implemented the whole project …….but i m not getting the output on the lcd display…….when i debugged/compiled the program ….i got some errors-

    error C202: ‘p3’: undefined identifier
    error C202: ‘p0’: undefined identifier
    error C202: ‘p2’: undefined identifier
    error C202: ‘rs’: undefined identifier
    error C202: ‘rw’: undefined identifier
    error C202: ‘p0’: undefined identifier
    error C202: ‘en’: undefined identifier
    error C202: ‘PWM’: undefined identifier
    error C202: ‘b’: undefined identifier
    error C202: ‘led1’: undefined identifier
    error C202: ‘led2’: undefined identifier
    error C202: ‘led3’: undefined identifier
    error C202: ‘led4’: undefined identifier
    error C202: ‘RL1’: undefined identifier
    error C202: ‘RL2’: undefined identifier
    Target not created

     

    so i inserted the commands


      #ifndef REG51_H
                                                            #define REG51_H
                                                            #include <REGX51.H>

    then i got 0 errors and 0 warnings………………..

    i then created the HEX file and burnt the chip using ISP 3.0 software…but i m observing no output…..

    so what i m supposed to do further……………please help me………as soon as possible………..

    August 2, 2011 at 5:49 pm #6560
    nikhil
    Participant

    dis site is amazingggg……..i got my mistake in the connections………….sry for the forum……..thnks 4 help.!!

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