TX/source/fgen.h

#ifndef _FGEN_H
#define _FGEN_H

#include "dds.h"

#define RAMP_300KHZ     300000


typedef enum
{
    DDS_SIGNAL = 0,
    DDS_DIRECTION,
    DDS_RAMP,
    NUM_DDS
} dds_type_t;

//Locate direction (LD)
#define FREQ_LD_MAX_FREQUENCY	10000		//LD runs at or below this frequency
#define FREQ_LD_SWITCH_POINT	1500		//At or below this freq, f2 is f1 * 2. above this f2 = f1 / 2


typedef enum 
{
    FT_ACTIVE,          //active
    FT_LD_ACTIVE,       //active w/ Locate Direction
    FT_POWER,           //RX ONLY individual power
    FT_GROUPED_POWER,   //RX ONLY Radio style grouped power
    FT_CATHODIC,        //RX ONLY cathodic protection - Identical to individual power except naming in frequency menu
    FT_SONDE,			//RX ONLY
    FT_RADIO,			//RX ONLY
    FT_FAULT_FIND,      //RX ONLY fault finder - Has it's own dedicated frequency set. frequencies are NOT user definable
} FREQ_TYPE_t;

//Data for individual frequencies
typedef struct 
{
    FREQ_TYPE_t type;
	uint32_t	frequency;		//frequency in Hz
	uint32_t	ldFrequency;
	uint8_t		enabled;
	float	    i_coeff_lo;
	float	    i_coeff_hi;
	float	    v_coeff_lo;
	float	    v_coeff_hi;
} FREQUENCY_t;

typedef struct
{
    // list of frequencies...
    FREQUENCY_t frequencies[FREQ_MAX_NUM];
	uint32_t numFrequencies;	//number of frequencies in array

    dds_t dds[NUM_DDS];

    uint8_t amplitude;

} fgen_t;

fgen_t* fgen_init(void);
FREQUENCY_t* fgen_findNearest(uint32_t freq);
FREQUENCY_t *fgen_getByIndex(int index);
void fgen_getFrequencyName(FREQUENCY_t *freq, uint8_t *string);
uint32_t fgen_getNumFrequencies(void);
void fgen_addFrequency(uint32_t frequency, uint8_t enabled, uint8_t inMenu, FREQ_TYPE_t type);
void fgen_clearFrequencies(void);
void fgen_setFrequency(FREQUENCY_t *freq);
void fgen_enableDDS(dds_type_t dds, bool enable);
dds_t* fgen_getDDS(dds_type_t dds);
void fgen_setAmplitude(uint8_t amplitude);

#endif