Problem About Gram Of TFT Displayer

Discussion in 'General Electronics Chat' started by ksniper, May 28, 2010.

  1. ksniper

    Thread Starter New Member

    Jan 18, 2010
    1
    0
    guys,I have a problem ,need ur help.
    I use the 2.8' TFT displayer,its control IC is ILI9325
    R20 R21 are the registers of GRAM Address set,R22 is the register of GRAM data writen.
    I need to put a dot on the TFT displayer,but when i set the R20 and R21(x y coordinate) ,then write the color to R22 ,it doesn't work。
    I thought this problem for a long time,but i haven't settled it .
    can u give me some advices.
    thx !
    :)
     
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