magneticrotary.h

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/*
 * MikroSDK - MikroE Software Development Kit
 * Copyright© 2020 MikroElektronika d.o.o.
 * 
 * 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 to use, copy, modify, merge, 
 * publish, distribute, sublicense, and/or sell 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.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE 
 * OR OTHER DEALINGS IN THE SOFTWARE. 
 */
 
// ----------------------------------------------------------------------------
 
#ifndef MAGNETICROTARY_H
#define MAGNETICROTARY_H
 
#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"
#include "drv_spi_master.h"
 
 
// -------------------------------------------------------------- PUBLIC MACROS 
#define T_MAGNROTARY_P    const uint8_t*
 
#define MAGNETICROTARY_MAP_MIKROBUS( cfg, mikrobus ) \
   cfg.miso  = MIKROBUS( mikrobus, MIKROBUS_MISO ); \
   cfg.mosi  = MIKROBUS( mikrobus, MIKROBUS_MOSI ); \
   cfg.sck   = MIKROBUS( mikrobus, MIKROBUS_SCK ); \
   cfg.cs    = MIKROBUS( mikrobus, MIKROBUS_CS )
#define MAGNETICROTARY_RETVAL  uint8_t
 
#define MAGNETICROTARY_OK           0x00
#define MAGNETICROTARY_INIT_ERROR   0xFF
#define MAGNROTARY_CHA_POS_GND_NEG             0x80
#define MAGNROTARY_CHB_POS_GND_NEG             0xC0
#define MAGNROTARY_CHA_POS_CHB_NEG             0x00
#define MAGNROTARY_CHB_POS_CHA_NEG             0x40
#define MAGNROTARY_MSB_LSB_ORDER               0x00
#define MAGNROTARY_MSB_ZEROS_ORDER             0x20
#define MAGNROTARY_VDD_3V3                     3298
#define MAGNROTARY_VDD_5V                      4960
#define  MAGNROTARY_START_BYTE                 0x01
#define  MAGNROTARY_DUMMY_BYTE                 0x00
#define  MAGNROTARY_CMD_MASK                   0xE0
#define  MAGNROTARY_ADC_RESOLUTION             4096
#define  MAGNROTARY_SIGN_BIT                   0x0800
 // End group macro 
// --------------------------------------------------------------- PUBLIC TYPES
typedef struct
{
    digital_out_t cs;
 
    // Modules 
    spi_master_t spi;
    pin_name_t chip_select;
 
} magneticrotary_t;
 
typedef struct
{
    // Communication gpio pins 
 
    pin_name_t miso;
    pin_name_t mosi;
    pin_name_t sck;
    pin_name_t cs;
 
    // static variable 
 
    uint32_t spi_speed;
    spi_master_mode_t spi_mode;
    spi_master_chip_select_polarity_t cs_polarity;
 
} magneticrotary_cfg_t;
 
 // End types group
 
// ----------------------------------------------- PUBLIC FUNCTION DECLARATIONS
 
#ifdef __cplusplus
extern "C"{
#endif
 
void magneticrotary_cfg_setup ( magneticrotary_cfg_t *cfg );
 
MAGNETICROTARY_RETVAL magneticrotary_init ( magneticrotary_t *ctx, magneticrotary_cfg_t *cfg );
 
void magneticrotary_generic_transfer 
( 
    magneticrotary_t *ctx, 
    uint8_t *wr_buf, 
    uint16_t wr_len, 
    uint8_t *rd_buf, 
    uint16_t rd_len 
);
 
uint16_t magnrotary_out_volt_adc ( magneticrotary_t *ctx, uint8_t cmd_byte, uint16_t pwr_volt );
 
uint16_t magnrotary_read_adc ( magneticrotary_t *ctx, uint8_t cmnd_byte );
 
double magnrotary_get_field_angle  ( magneticrotary_t *ctx, uint8_t cmd_byte );
 
 
#ifdef __cplusplus
}
#endif
#endif  // _MAGNETICROTARY_H_
 
 // End public_function group
 
// ------------------------------------------------------------------------- END