k.c

AT89C51实现多路信号的采集程序

#include <reg51.h>
unsigned char buff[9]={0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08};
unsigned char k,e,b,n,m;
sbit CS=P2^1;
sbit CLK=P2^0;
sbit SDO=P2^2;


AD()
{
b=0;
CS=1;
CLK=0;
CS=0;
for(n=0;n<10;n++);
for(m=0;m<8;m++)
{
CLK=1;
if(SDO)
b++;
b=b<<1;
CLK=0;
}
CLK=1;
e=b;

}


intial()
{
IE=0;
SCON=0x40;
TMOD |= 0x20;
PCON=0x00;
TL1=0xFD;
TH1=0xFD;
}

send(unsigned char t)
{
TR1=1;
SBUF=t;
while(!TI);
TI=0;
TR1=0;
}


main()
{
intial();
while(1)
{
AD();
send(e);
}
}