[ts-7000] hi

["soniathakur3" <>]

Hello,

I am trying to set the external ADC MAX197. Right now i am just
configuring only one channel.But i haven't been able to get any
output.Infact it seems like the 0x10f00000 is not getting intialized.

 the code i am using is:

#include<unistd.h>
#include<sys/types.h>
#include<sys/mman.h>
#include<stdio.h>
#include<fcntl.h>
#include<assert.h>
#include<time.h>
#include<stdlib.h>

#define Result          0x10f00000
#define Busy            0x10800000
#define Extern_ADC      0x22400000
#define Channel_0       0x51

int main(int argc, char **argv)
{
        volatile unsigned short *complete;
        volatile unsigned char *lsb, *msb, *IO;
        unsigned  char *regval;
        int res;
        int n, cntlByte;

        int fd=open("/dev/mem",O_RDWR|O_SYNC);
        assert(fd != -1);

        setvbuf(stdout, NULL, _IONBF, 0);

        /* lets initialize our pointers*/
       
lsb=(unsignedchar*)mmap(0,getpagesize(),PROT_WRITE|PROT_READ,MAP_SHARED,fd,Result);
        assert(lsb != MAP_FAILED);
        msb=lsb + 1;
        

             
complete=(unsignedshort*)mmap(0,getpagesize(),PROT_READ|PROT_WRITE,MAP_SHARED,fd,Busy);
        assert(complete != MAP_FAILED);

       
IO=mmap(0,getpagesize(),PROT_READ|PROT_WRITE,MAP_SHARED,fd,Extern_ADC);
        assert(IO != MAP_FAILED);

        printf("debug IO:%s\n",IO);
        assert(IO != MAP_FAILED);
        regval=(unsigned char*)IO;
        if(*regval & 0x01){
        printf("OK\n");
        }
        else{
        printf("fail\n");
        }
        printf("IO:%d\n",*IO);
        /*ch.1*/
        cntlByte =Channel_0;
        printf("cntlByte:%d\n",cntlByte);
        *lsb = cntlByte;
        
        printf("debug lsb:%d\n",*lsb);

        n=0;
        while(n<<14 && (*complete & 0x80)!=0x0);
        {
                usleep(1<<n);
                n++;
        }
        if(n == 14){
                printf("FAIL, timed out\n");
                return 1;
        }
        else {
                printf("ok\n");
        }

        printf("reading result...");
        res=*lsb;
        printf("debug:%d\n",res);
        res|=*msb<<8;
        printf("result1:%d\n",res);
             
        return 0;
        }

The result that i get is:
$ ./test3
debug IO:.
OK
IO:1
cntlByte:81
debug lsb:0
ok
reading result...debug:0
result1:2048

What is going wrong here??

any help is appreciated.

thanks
Sonia





 
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