/* send Data subroutine, the Data for the request to send Data */
Void the Send (uchar Data)
{
Uchar BitCounter=8;
Uchar temp.
Do
{
Temp=Data;//will sent data staging temp
Scl=0;
The Nop ();
If ((temp& 0 x80)==0 x80)//to read data & amp; 0 x80
Sda=1;
The else
Sda=0;
Scl=1;
Temp=Data<1;//data left
Data=https://bbs.csdn.net/topics/temp;//Data after the shift to the left to assignment Data
BitCounter -;//the variable to 0, the data transfer is completed
}
While (BitCounter);//determine whether delivered complete
Scl=0;
}

/* read a byte of data, and returns the byte value */
Uchar Read (void)
{
Uchar temp=0;
Uchar temp1=0;
Uchar BitCounter=8;
Sda=1;
Do
{
Scl=0;
The Nop ();
Scl=1;
The Nop ();
If (Sda)//whether the data bits are 1
Temp=temp | 0 x01;//for the lowest temp for 1, | 0 x01, lowest is to 1)
If the else//0
Temp=temp& 0 xfe;//temp lowest is 0 (& amp; 0 xfe (11111110) the lowest is 0)
If (BitCounter - 1)//BitCounter whether is true after minus 1
{
Temp1=temp<1;//temp left
Temp=temp1;
}
BitCounter -;//BitCounter down to zero, the data is received through
}
While (BitCounter);//determine whether receive complete
Return (temp);
}