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How to intialize TFT LCD using spi communication

Hai,

I am siva krishna,I am try to initialize and access the 24bit TFT lcd using LPC2478.
So can anyone help me for this..

Thanks & Regadrs
Siva Krishna

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  • Thanks for ur reply Per Westermark.
    1.I came across the forum from google and found that Paval alrady finished the coding. So just continuned the discussion so that i get his contact.
    2.I am trying to implement TFT with HX8238 driver in SPI.
    3.Studied the datasheet and followed the sequence said in that to initilize the TFT.
    >I used SPI @ 10Mhz and DataLatch at rising edge of the clock.8bit communication
    >data were sent in 2 set, First is the Deveice ID(011100RsRW)followed by address
    >Then same deveice ID followed by data.
    Plase find my code below
    -----------------------------------------
    void Init_TFT(void){ TFT_Reset=1; delay_msec(60); TFT_Reset=0; delay_msec(60); TFT_Reset=1; delay_msec(300);

    TFT_Srl_Send(0x72,0x01,0x6300); TFT_Srl_Send(0x72,0x02,0x0200); TFT_Srl_Send(0x72,0x03,0x7184); delay_msec(125); TFT_Srl_Send(0x72,0x04,0x0447);
    TFT_Srl_Send(0x72,0x05,0xB4D4); TFT_Srl_Send(0x72,0x0A,0x4008); delay_msec(50);

    TFT_Srl_Send(0x72,0x0B,0xD400); TFT_Srl_Send(0x72,0x0D,0x1235); delay_msec(250);

    TFT_Srl_Send(0x72,0x0E,0x2B00); delay_msec(250);

    TFT_Srl_Send(0x72,0x0F,0x0000); TFT_Srl_Send(0x72,0x16,0x9F80); TFT_Srl_Send(0x72,0x17,0x2212); delay_msec(250);

    TFT_Srl_Send(0x72,0x1E,0x00DB); delay_msec(250);

    TFT_Srl_Send(0x72,0x30,0x0507); TFT_Srl_Send(0x72,0x31,0x0004); TFT_Srl_Send(0x72,0x32,0x0707); TFT_Srl_Send(0x72,0x33,0x0000); TFT_Srl_Send(0x72,0x34,0x0000); TFT_Srl_Send(0x72,0x35,0x0307); TFT_Srl_Send(0x72,0x36,0x0700); TFT_Srl_Send(0x72,0x37,0x0000); TFT_Srl_Send(0x72,0x3A,0x0000); TFT_Srl_Send(0x72,0x3B,0x0000); delay_msec(250);

    }

    void TFT_Srl_Send(unsigned char Reg_Add,unsigned char Int_Add,unsigned short Data) { unsigned char Lca_Cmd[3];

    Lca_Cmd[0]=Reg_Add; Lca_Cmd[1]=0; Lca_Cmd[2]=Int_Add;

    TFT_nChipSelect =0; DMA_SPI(&Lca_Cmd[0],3); Nop();Nop();Nop(); TFT_nChipSelect =1;

    Lca_Cmd[0]=Reg_Add; Lca_Cmd[1]=(Data&0xFF00)>>8; Lca_Cmd[2]=(Data&0xFF);

    TFT_nChipSelect =0; DMA_SPI(&Lca_Cmd[0],3); Nop();Nop();Nop(); TFT_nChipSelect =1;
    } //-----------------------------------//

    I wish to know how to load the data to the pixels. I have used Parallel communication earlier, were i can select instruction/data using an IO and latch data to
    the parallel data pin. I dont know how to do the same in this SPI

  • Doesn't the Datasheet tell you that?

    This forum clearly tells you how to post source code:
    www.danlhenry.com/.../keil_code.png

    If you managed to miss that, you've probably also missed important details in the Datasheet - so go back and really study it carefully...