zerocross.h

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/****************************************************************************
** Copyright (C) 2020 MikroElektronika d.o.o.
** Contact: https://www.mikroe.com/contact
**
** Permission is hereby granted, free of charge, to any person obtaining a copy
** of this software and associated documentation files (the "Software"), to deal
** in the Software without restriction, including without limitation the rights
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** copies of the Software, and to permit persons to whom the Software is
** furnished to do so, subject to the following conditions:
** The above copyright notice and this permission notice shall be
** included in all copies or substantial portions of the Software.
**
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** OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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#ifndef ZEROCROSS_H
#define ZEROCROSS_H
 
#ifdef __cplusplus
extern "C"{
#endif
 
#ifdef PREINIT_SUPPORTED
#include "preinit.h"
#endif
 
#ifdef MikroCCoreVersion
    #if MikroCCoreVersion >= 1
        #include "delays.h"
    #endif
#endif
 
#include "drv_digital_out.h"
#include "drv_digital_in.h"
 
#define ZEROCROSS_PIN_STATE_LOW             0x00
#define ZEROCROSS_PIN_STATE_HIGH            0x01
 
 // zerocross_set
 
#define ZEROCROSS_MAP_MIKROBUS( cfg, mikrobus ) \
    cfg.zc = MIKROBUS( mikrobus, MIKROBUS_INT )
#define ZEROCROSS_MAP_MIKROBUS( cfg, mikrobus ) \ …
 
 // zerocross_map
 // zerocross
 
typedef struct
{
    digital_in_t zc;       
} zerocross_t;
typedef struct {…};
 
typedef struct
{
    pin_name_t zc;          
} zerocross_cfg_t;
typedef struct {…};
 
typedef enum
{
    ZEROCROSS_OK = 0,
    ZEROCROSS_ERROR = -1
 
} zerocross_return_value_t;
typedef enum {…};
 
void zerocross_cfg_setup ( zerocross_cfg_t *cfg );
 
err_t zerocross_init ( zerocross_t *ctx, zerocross_cfg_t *cfg );
 
uint8_t zerocross_pin_read ( zerocross_t *ctx );
 
void zerocross_get_freq ( zerocross_t *ctx, float *freq );
 
#ifdef __cplusplus
}
#endif
#endif // ZEROCROSS_H
 
 // zerocross
 
// ------------------------------------------------------------------------ END