4-line lcd interfacing with 8051

Discussion in 'Embedded Systems and Microcontrollers' started by khan yousufzai, Sep 6, 2012.

  1. khan yousufzai

    Thread Starter New Member

    Aug 31, 2012
    19
    0
    please clarify me,when v interface 2 line lcd v use command 0x38,but which command will be used for 4 line lcd or greater,plz reply me i m waiting
    thanking brothers
     
  2. panic mode

    Senior Member

    Oct 10, 2011
    1,318
    304
    do you have datasheet for the display?
     
  3. t06afre

    AAC Fanatic!

    May 11, 2009
    5,939
    1,222
    If I remember correct a 4x20 display is in basic a 2x40 display. Consequently, the end address of line 1 and the start address of line 3 are consecutive. Also, the end address of line 2 and the start address of line 4 are consecutive.
    In the DD-RAM line 1 starts at address 0x00. Line 2 at address 0x40. Line 3 at address 0x14. And line 4 at address 0x54
     
    absf likes this.
Loading...