dac.h

Go to the documentation of this file.

/*
 * 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 DAC_H
#define DAC_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_spi_master.h"
 
 
// -------------------------------------------------------------- PUBLIC MACROS 
#define DAC_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 DAC_RETVAL  uint8_t
 
#define DAC_OK           0x00
#define DAC_INIT_ERROR   0xFF
#define DAC_APPLY_SETTINGS  0x30
 
#define DAC_4_BIT_DATA      0x0F
#define DAC_8_BIT_DATA      0xFF
#define DAC_PERCENTAGE      100
#define DAC_ONE_STEP_VAL    819
#define DAC_CLAC_VAL        20
#define DAC_CALIB_VAL_1     220
#define DAC_CALIB_VAL_2     273
#define DAC_RESOLUTION      4096
#define DAC_STEP_VALUE      1000
 // End group macro 
// --------------------------------------------------------------- PUBLIC TYPES
typedef struct
{  
    digital_out_t cs;
 
    // Modules 
 
    spi_master_t spi;
    pin_name_t chip_select;
 
} dac_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;
 
} dac_cfg_t;
 
 // End types group
// ------------------------------------------------------------------ CONSTANTS
 // End constants group
// ------------------------------------------------------------------ VARIABLES
 // End variable group
// ----------------------------------------------- PUBLIC FUNCTION DECLARATIONS
 
#ifdef __cplusplus
extern "C"{
#endif
 
void dac_cfg_setup ( dac_cfg_t *cfg );
 
DAC_RETVAL dac_init ( dac_t *ctx, dac_cfg_t *cfg );
 
void dac_set_voltage ( dac_t *ctx, uint16_t v_out );
 
void dac_set_voltage_pct ( dac_t *ctx, uint8_t v_out_pct );
 
#ifdef __cplusplus
}
#endif
#endif  // _DAC_H_
 
 // End public_function group
 
// ------------------------------------------------------------------------- END