SpinCore Technologies ClockMaster CM2-100-PCI, Owner'S Manual

ClockMaster

8/8/2002

11

www.spincore.com

// This sample application uses the PM02PC01 DLL to control the
// ClockMaster-100 board through the cm_set_freq DLL function call.
//
// SpinCore Technologies, Inc.
// August 2002
// http://www.spincore.com
//
// Notes: Remember to include PM02PC01.lib in your Project settings when
//

using the PM02PC01 DLL

//

#include <stdio.h>
#include <math.h>

#define KILO

1000

#define MEGA

1000000

#define FREQ_BITS

32

#define CLOCK_RATE

100*MEGA

// Imported Function from PM02PC01
extern "C" __declspec(dllimport) int cm_set_freq(double Freq_to_Output,
double Clock_Rate);

int main(int argc, char* argv[])
{

double

Freq, TempFreq;

Freq = 125.500;

// Freq to output in kHz

// The Output to ClockMaster
int cm_ret = cm_set_freq(Freq, CLOCK_RATE);

// Check Function Return for Success
if (cm_ret == -1) return -1;

// For Display Purposes Only, Convert to Hex and Back to get the Rounded

True Value Output

TempFreq = Freq * pow(2, FREQ_BITS - 1) * KILO / (CLOCK_RATE / 2);
TempFreq = (unsigned int) TempFreq;
TempFreq = (float) TempFreq / pow(2, FREQ_BITS - 1) * (CLOCK_RATE / 2) /

KILO;

printf("Now Outputting --\nFrequency: %.4f kHz\n", TempFreq);
return 0;

}

Appendix I: Example C Program