adc0831.c

来自「可以实现多路数据采集和传输系统」· C语言 代码 · 共 33 行

#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 select1[]={0xfe,0xfd};
uchar i;
uchar T0831Read(uchar i)
{
uchar b;
uchar DataSoute;
//T0831_CS=1;
P1=select1[i];
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;
P1=0xff;
T0831_SK=1;
delay1(30);
return (DataSoute);
}