File content as of revision 3:764ccaf29ce9:

#include "power_up.h"
#include "scan.h"
#include "master_i2c.h"
#include "JTAG.h"
using namespace std;

DigitalOut RESET (p21);

Serial s(USBTX, USBRX);
DigitalOut finish_flag (LED3);

int main()
{
    s.printf("DDRO_software starts ...\r\n");
    double voltage = 1;
    PLL clk;
    JTAG jtag;
    int* ro_readings = new int [64];
    FILE *outFile = fopen("/local/test.out", "a");
    for (int i=0; i<7; i++) {
        voltage = 1 - 0.05*i;
        powerReset();
        powerUp(voltage);
        fprintf(outFile, "Voltage: %f\n", voltage);
        RESET = 0;
        wait_us(10);
        RESET = 1;
        master_write();
        master_read(ro_readings);

        for (int ii=0; ii<64; ii++) {
            fprintf(outFile, "RO %d %d\n", ii, ro_readings[ii]);
        }
        int fmax;
        int lower = 51;
        int higher = 199;
        int frequency = (lower+higher)/2;
        clk.setPLL(frequency))
        RESET = 0;
        wait_us(10);
        RESET = 1;
        while (higher - lower >1) {
        if(jtag.JTAG_test()) {
                lower = frequency;
                frequency = (lower+higher)/2;
                clk.setPLL(frequency);
                RESET = 0;
                wait_us(10);
                RESET = 1;
            } else {
                higher = frequency;
                frequency = (lower+higher)/2;
                clk.setPLL(frequency);
                RESET = 0;
                wait_us(10);
                RESET = 1;
            }
        }
        fprintf(outFile, "fmax %d\n", lower*5);
        powerDown();
    }
    fclose(outFile);
    s.printf("DDRO_software ends.\r\n");
    while(1) {
        finish_flag = !finish_flag;
        wait(1);
    }
}