AD9834_WSPR_Symbol_Calc.cpp

#include <iostream>
#include <math.h>

using namespace std;

int main(int argc, char **argv){
	if(argc != 2){
		cout << "Usage:\n" << argv[0] << "\t BASE_FREQUENCY" << endl;
		return 1;
	}
	long clock_freq = 75000000;
	long base_frequency = atof(argv[1]);

		
	const float shift = 1.46484375;
	for(int i = 0; i < 4; i++){
		long frequency = base_frequency + (i * shift);
		long freq_reg = (frequency * pow(2,28)) / clock_freq;
		uint16_t MSB, LSB;
  		LSB = freq_reg & 0x3FFF; // 14 LSBs

  		MSB = ((freq_reg & 0xFFFC000) >> 14);

  		cout << MSB << "," << LSB << endl;
	}


  	return 0;
}