#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <string.h>

#include <fcntl.h>

//逻辑通道和物理通道的对应关系

//channel7 ain0

//channel6 ain1

//channel3 ain2

//channel4 ain3

//channel5 ain4

//channel2 ain5

//channel1 ain6

//channel0 ain7

int main(int argc, char *argv)

{

    int i, n, fd;

        int ret;

        unsigned short val[8];

       

        fd = open("/dev/ad7927", O_RDWR);               //打开设备

        

    if (fd < 0)

        {

            printf("can't open /dev/ad7927!\n");

            exit(1);

        }

        ret = read(fd, val, 8*sizeof(unsigned short)); //读取

        if(ret > 0)

        {

            for(i=0;i<8;i++)

             printf("channel=%d,result = %x\n",

            (val[i]&0xe000)>>13, val[i]&0x1fff);

        }

   

    sleep(10);

    return 0;

 }