xia_tmp.c

可以实现多路数据采集和传输系统

#include <reg52.h>
#include <intrins.h>
extern void delay1(unsigned char );
sbit T0831_CS=P2^0;//片选I/O端口
sbit T0831_SK=P2^4;//时钟I/O端口
sbit T0831_DO=P2^2;//数据I/O端口
#define uchar unsigned char

uchar T0831Read(void)
{
uchar b;
uchar DataSoute;
T0831_CS=1;
delay1(10);
T0831_SK=1;
T0831_CS=0;
T0831_SK=0;
_nop_();
for(b=0;b<8;b++)
{
T0831_SK=1;
T0831_SK=0;
if(T0831_DO) DataSoute++;
DataSoute<<=1;
}
T0831_CS=1;
T0831_SK=1;
delay1(30);
return (DataSoute);
}