[ts-7000] ADC in TS7260 : Please Help Me

["Girisha Durrel De Silva" <>]

Hi Guys

I am new to the SBC and I have no idea how to do the ADC in a TS 7260.
I used the code in the manual and the output I get is zero on the
screen. I checked the cct with an oscilloscope and it was working
fine. Therefore, I think I am not doing the ADC correctly on the
board. Can anyone please help me!!!

I need to use only one channel. And therefore I am using the DIO2 pin
8 for the output of my cct and pin to for the ground of my cct.

Girisha

The code I used

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

int main(int argc, char **argv)
{
        volatile unsigned short * complete;
        volatile unsigned char * lsb, * msb, * control;
        int res;
        int a;
        int fd = open("/dev/mem", O_RDWR);
        assert(fd != -1);

        for(a=0;a<100;a++)
        {       
                lsb = control = (unsigned char *)mmap(0,
getpagesize(),PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0x10c00000);
                msb = lsb + 1;
                complete = (unsigned short *)mmap(0,
getpagesize(),PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0x10800000);

                // Initiate conversion, channel #1, unipolar, 5V
                *control = 0x41;
        
                // Wait for completion
                while ((*complete & 0x80) != 0);
        
                // Print result on a scale from 0 to 2^12 - 1
                res = *lsb;
                res |= *msb << 8;
                printf("result: %d\n", res);
        }
        close(fd);
        return 0;
}





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