24c02 的read

mbass51 · 发表于 2011-10-28 10:36:29

想一次read兩個byte,但不成功

u16 AT24CXX_2byte(u16 ReadAddr)
{
u16 temp=0;
    IIC_Start();
IIC_Send_Byte(0XA0);   //0XA0 send write control/slave address
IIC_Wait_Ack();
    IIC_Send_Byte(ReadAddr);    //      write word address IIC_Wait_Ack();
IIC_Start();
IIC_Send_Byte(0XA1);           // 0xA1 send read control /slave address
IIC_Wait_Ack();
    temp<<=8;
    temp +=IIC_Read_Byte(1);     // indata to temp
  IIC_Wait_Ack();
    temp<<=8;
    temp +=IIC_Read_Byte(0);     // indata to temp
    IIC_Stop();//
return temp;
}