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tomitomi|

楼主 | 2007-8-27 09:39 | 只看该作者回帖奖励

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Touch, TE, AD, TI, ADDR

unsigned char Touch_data_process(unsigned char touch_command)
{
    unsigned int idata temp;
    I2CWriteByte_noAddrsss(Touch_tsc2003_address,touch_command);
    temp = I2CReadByte_TK2003(Touch_tsc2003_address);
    return((temp>>8)&0xff);

}
unsigned char I2CWriteByte_noAddrsss(unsigned char cDevAddr,unsigned char cData)
{
    /* start condition */
    StartCondition();
      cDevAddr &= 0xFE;   /*Force WRITE address*/
    /* send device ID and write data */
    if(!Send_Byte(cDevAddr))
    {
        if(!Send_Byte(cData))
        {
            StopCondition();
            return(0);      /* success */
        }
    }
    StopCondition();
    return(1);

}
unsigned int I2CReadByte_TK2003(unsigned char cDevAddr)
{
    unsigned int temp;
    StartCondition();
    if(Send_Byte(cDevAddr | 0x01))
        return 0;  /*Write address*/
    temp = Read_Byte(1);
    temp<<=8;
    temp |= Read_Byte(1);
    StopCondition();
    return(temp);
}
#define X_POSITION_COMMAND        0xc6    //8bit ADC
#define Y_POSITION_COMMAND        0xd6    //8bit ADC
datax = Touch_data_process(X_POSITION_COMMAND);
    datay = Touch_data_process(Y_POSITION_COMMAND);

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