File content as of revision 0:60661ba12125:

#include "mbed.h"

Serial pc(USBTX, USBRX); // tx, rx
DigitalOut myled(LED1);

float     Right=1.123456;  // gemeten waarde bij 4mA ( 0..1 <> 0..3.3v )
float     Left=1.123;  // gemeten waarde bij 4mA ( 0..1 <> 0..3.3v )
char A[10], B[10];

LocalFileSystem local("local");               // Create the local filesystem under the name "local"
//float leftOff;



void ReadFile (void)
{
    FILE *set = fopen("/local/calib.txt", "r");  // Open "setup.txt" on the local file system for read
    fscanf(set,"%s %f",A,&Left); // read offset
    fscanf(set,"%s %f",A,&Right); // read offset
    fclose(set);
}


void WriteFile(void)   // write to USB memory
{
    FILE *fp = fopen("/local/calib.txt", "w");  // Open "setup.txt" on the local file system for write
    fprintf(fp,"Left %f\r\n",Left); // read offset
    fprintf(fp,"Right %f\r\n",Right); // read offset
    //fprintf(fp,"gain %f\r\n",lOffset);   // read gain
    fclose(fp);
}


int main()
{
    pc.baud(912600);
    WriteFile();
    wait(3);
    ReadFile();// when you run first time without this line, the setup file is on created
    wait(1);
    pc.printf("Left Offset is: %f, Right Offset is: %f\r\n", Left, Right);
    //pc.printf("%f\n roffset", roff);
}