IIC AT24C02读写数据的一点小体会

unsigned char I2CWriteByte(unsigned int mem_addr,unsigned char*DDATAp,unsigned int count)
{ 
 
    u8 i = 0;unsigned int Timer_1ms;
    
    for(i=0;i<count;i++)
    {
            I2cStart2();
            I2cSend2(0xA0); //发送写命令
            WaitAck2();
            I2cSend2(mem_addr+i); //发送写入的地址
            WaitAck2();
      I2cSend2(DDATAp[i]);
      WaitAck2(); 
            I2cStop2(); //发送停止信号
            Timer_1ms=0xFFFF;
       while(Timer_1ms--)
            {
                __NOP();
    
            }
    }
｝

const unsigned char cucBit2[] = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01};

void I2cSend2(unsigned char ucData2)
{
    unsigned char IIC_i;

    SDA_Out();//设置为输出

    CLR_SCL2();

    for (IIC_i=0;IIC_i<8;IIC_i++)
    {
        
    
        if ( (ucData2 & cucBit2[IIC_i]) != 0)
              {
                   SET_SDA2();
               }
        else
              {
                CLR_SDA2();
              }


        DelayIntr2(2);

        SET_SCL2();

        DelayIntr2(2);
        
        CLR_SCL2();

        DelayIntr2(2);
        
                
    };

}