sht_drv.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 SHT_DRV_H
#define SHT_DRV_H
 
#include "drv_digital_in.h"
#include "drv_digital_out.h"
#include "drv_i2c_master.h"
 
#define SHT_I2C_ADDR0 0x44
#define SHT_I2C_ADDR1 0x45
 
#define SHT_MPS_05 0x20 // 0.5 measurements per second
#define SHT_MPS_1 0x21  // 1 measurements per second
#define SHT_MPS_2 0x22  // 2 measurements per second
#define SHT_MPS_4 0x23  // 4 measurements per second
#define SHT_MPS_10 0x27 // 10 measurements per second
#define SHT_RPT_HIGH 0   // High repeatability
#define SHT_RPT_MEDIUM 1 // Medium repeatability
#define SHT_RPT_LOW 2    // Low repeatability
 
#define SHT_STR_ENABLE 0x2C  // Stretching enabled
#define SHT_STR_DISABLE 0x24 // Stretching disabled
#define SHT_CRC_POLYNOMIAL 0x31
#define SHT_FETCH_DATA 0xE000
#define SHT_PERIODIC_ART 0x2B32
#define SHT_BREAK 0x3093
#define SHT_SOFT_RESET 0x30A2
#define SHT_HEATER 0x30
#define SHT_READ_STATUS 0xF32D
#define SHT_CLEAR_STATUS1 0x3041
// --------------------------------------------------------------- PUBLIC TYPES
typedef struct
{
    uint8_t clk_stretching;
    uint8_t repeatability;
    uint8_t mps;
 
} drv_variables_t;
 
typedef struct
{
    // Output pins
 
    digital_out_t rst;
    // Input pins
 
    digital_in_t int_pin;
 
    // Modules
 
    i2c_master_t i2c;
 
    // ctx variable
 
    uint8_t slave_address;
 
    // driver variables
 
    drv_variables_t vars;
 
} sht_t;
 
typedef struct
{
    // Communication gpio pins
 
    pin_name_t scl;
    pin_name_t sda;
 
    // Additional gpio pins
 
    pin_name_t rst;
    pin_name_t int_pin;
 
    // static variable
 
    uint32_t i2c_speed;
    uint8_t  i2c_address;
 
    //driver variable's config
 
    drv_variables_t vars_cfg;
 
} sht_cfg_t;
 
// ----------------------------------------------- PUBLIC FUNCTION DECLARATIONS
 
#endif // SHT_DRV_H
 
 
// ------------------------------------------------------------------------- END