metal_detecting.h

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#ifndef SIGNALSPROCESSING_INC_METAL_DETECTING_H_
#define SIGNALSPROCESSING_INC_METAL_DETECTING_H_
 
#include <stdint.h>
#include "arm_math.h"
 
typedef enum
{
    TARGET_DETECTED = 0,                
    NO_TARGET                           
} MD_DetectStatus_t;
 
typedef struct
{
    float32_t tx_signal_phase;          
    float32_t rx_signal_magnitude;      
    float32_t rx_signal_phase;          
} MD_Data_t;
 
typedef struct
{
    float32_t last_magnitude;           
    float32_t gnd_balance;              
    float32_t sensitivity;              
} MD_Handle_t;
 
extern MD_Handle_t md_handle;
 
MD_DetectStatus_t md_detect(MD_Handle_t *const handle, const MD_Data_t *const data, int16_t *const phase_difference);
 
void md_set_gndbalance(MD_Handle_t *const handle, uint16_t new_balance);
 
void md_set_sensitivity(MD_Handle_t *const handle, uint16_t new_sens);
 
#endif /* SIGNALSPROCESSING_INC_METAL_DETECTING_H_ */