tmp00x.h

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/*
 * Copyright (C) 2014 PHYTEC Messtechnik GmbH
 *               2017 - 2019 HAW Hamburg
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#include <stdint.h>
#include <stdbool.h>
#include "periph/i2c.h"
#include "kernel_defines.h"
 
#ifdef __cplusplus
extern "C"
{
#endif
 
#define BUS                         (dev->p.i2c) 
#define ADDR                        (dev->p.addr) 

#ifndef CONFIG_TMP00X_I2C_ADDRESS
#define CONFIG_TMP00X_I2C_ADDRESS         (0x40)
#endif

#if IS_ACTIVE(CONFIG_TMP00X_CONVERSION_TIME_0_25S)
#define CONFIG_TMP00X_CONVERSION_TIME                   (25E4)
#elif IS_ACTIVE(CONFIG_TMP00X_CONVERSION_TIME_0_5S)
#define CONFIG_TMP00X_CONVERSION_TIME                   (5E5)
#elif IS_ACTIVE(CONFIG_TMP00X_CONVERSION_TIME_1S)
#define CONFIG_TMP00X_CONVERSION_TIME                   (1E6)
#elif IS_ACTIVE(CONFIG_TMP00X_CONVERSION_TIME_2S)
#define CONFIG_TMP00X_CONVERSION_TIME                   (2E6)
#elif IS_ACTIVE(CONFIG_TMP00X_CONVERSION_TIME_4S)
#define CONFIG_TMP00X_CONVERSION_TIME                   (4E6)
#endif
 
#ifndef CONFIG_TMP00X_CONVERSION_TIME
#define CONFIG_TMP00X_CONVERSION_TIME                   (1E6)
#endif

#ifdef DOXYGEN
#define CONFIG_TMP00X_USE_LOW_POWER
#endif

#ifdef DOXYGEN
#define CONFIG_TMP00X_USE_RAW_VALUES
#endif

#define TMP00X_CONFIG_CR_AS1       (0x00)   
#define TMP00X_CONFIG_CR_AS2       (0x01)   
#define TMP00X_CONFIG_CR_AS4       (0x02)   
#define TMP00X_CONFIG_CR_AS8       (0x03)   
#define TMP00X_CONFIG_CR_AS16      (0x04)   
#define TMP00X_CONFIG_CR_DEF       TMP00X_CONFIG_CR_AS4 

#ifndef TMP00X_CCONST_S0
#define TMP00X_CCONST_S0           (6.4E-14)    
#endif
#define TMP00X_CCONST_A1           (1.75E-3)    
#define TMP00X_CCONST_A2           (-1.678E-5)  
#define TMP00X_CCONST_TREF         (298.15)     
#define TMP00X_CCONST_B0           (-2.94E-5)   
#define TMP00X_CCONST_B1           (-5.7E-7)    
#define TMP00X_CCONST_B2           (4.63E-9)    
#define TMP00X_CCONST_C2           (13.4)       
#define TMP00X_CCONST_LSB_SIZE     (156.25E-9)  

typedef struct {
    i2c_t   i2c;        
    uint8_t addr;       
    uint8_t rate;       
} tmp00x_params_t;

typedef struct {
    tmp00x_params_t p;  
} tmp00x_t;

enum {
    TMP00X_OK,          
    TMP00X_ERROR_BUS,   
    TMP00X_ERROR_DEV,   
    TMP00X_ERROR_CONF,  
    TMP00X_ERROR,       
};

int tmp00x_init(tmp00x_t *dev, const tmp00x_params_t *params);

int tmp00x_reset(const tmp00x_t *dev);

int tmp00x_set_active(const tmp00x_t *dev);

int tmp00x_set_standby(const tmp00x_t *dev);

int tmp00x_read(const tmp00x_t *dev, int16_t *rawv, int16_t *rawt, uint16_t *drdy);

void tmp00x_convert(int16_t rawv, int16_t rawt,  float *tamb, float *tobj);

int tmp00x_read_temperature(const tmp00x_t *dev, int16_t *ta, int16_t *to);
 
#ifdef __cplusplus
}
#endif