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#define SCLD _nop_();
unsigned char i2c(unsigned char com, unsigned char dat); // com- adress&direct(bit0); dat-data
/*------------ RUN ------------------*/
unsigned char i2c(unsigned char com, unsigned char dat)
{
unsigned char tmp,rDat;
SDA=0;SCLD;//START
SCL=0;SCLD;
rDat=com;
for(tmp=0;tmp<8;tmp++)//wread addres and direct
{
if(rDat&128)SDA=1;else SDA=0;SCLD;
SCL=1;SCLD;
SCL=0;
rDat<<=1;
}
SDA=1;//acknowledgement
SCL=1;SCLD;
SCL=0;SCLD;
if(com&1)//read data
{
rDat=0;
SDA=1;
for(tmp=0;tmp<8;tmp++)
{
rDat<<=1;
SCL=1;
if(SDA)rDat++;
SCL=0;
}
}
else//wread data
{
rDat=dat;
for(tmp=0;tmp<8;tmp++)
{
if(rDat&128)SDA=1;else SDA=0;SCLD;
SCL=1;SCLD;
SCL=0;
rDat<<=1;
}
}
SDA=1;SCLD;//acknowledgement
SCL=1;SCLD;
SCL=0;SCLD;
SDA=0;SCLD;//stop
SCL=1;SCLD;
SDA=1;
return rDat;
}
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