mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
drivers: rework tmp006
This commit is contained in:
smlng
parent
3af1fe5675
commit
42a09128aa
@ -76,6 +76,9 @@ endif
|
||||
ifneq (,$(filter bm%280,$(USEMODULE)))
|
||||
USEMODULE_INCLUDES += $(RIOTBASE)/drivers/bmx280/include
|
||||
endif
|
||||
ifneq (,$(filter tmp006,$(USEMODULE)))
|
||||
USEMODULE_INCLUDES += $(RIOTBASE)/drivers/tmp006/include
|
||||
endif
|
||||
ifneq (,$(filter tsl2561,$(USEMODULE)))
|
||||
USEMODULE_INCLUDES += $(RIOTBASE)/drivers/tsl2561/include
|
||||
endif
|
||||
|
||||
@ -1,5 +1,6 @@
|
||||
/*
|
||||
* Copyright (C) 2014 PHYTEC Messtechnik GmbH
|
||||
* 2017 HAW Hamburg
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU Lesser
|
||||
* General Public License v2.1. See the file LICENSE in the top level
|
||||
@ -7,62 +8,62 @@
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup drivers_tmp006 TMP006 Infrared Thermopile Sensor
|
||||
* @defgroup drivers_tmp006 TI TMP006 Infrared Thermopile Sensor
|
||||
* @ingroup drivers_sensors
|
||||
* @brief Driver for the Texas Instruments TMP006 sensor.
|
||||
* The sensor measures the temperature of an object
|
||||
* without the need of direct contact with the object.
|
||||
* After initialization and set active the sensor
|
||||
* will make measurements at periodic times.
|
||||
* The conversion duration depends on oversample ratio.<br>
|
||||
* The oversample ratio can be determined
|
||||
* by sensor initialization.<br>
|
||||
* The target object temperature can be calculated as follows:<br><br>
|
||||
* Temperature of sensor's die (2 times right shifting and devide-by 32):
|
||||
* \f{eqnarray*}{
|
||||
* T_{\mathrm{DIE}} &=& \frac{T_{\mathrm{RAW}}}{128}
|
||||
* \f}
|
||||
* Difference Temperature in Kelvin:
|
||||
* \f{eqnarray*}{
|
||||
* T_{\mathrm{DIFF}} &=& T_{\mathrm{DIE}} - T_{\mathrm{REF}}
|
||||
* \f}
|
||||
* Sensitivity of the thermopile sensor,
|
||||
* with \f$S_{\mathrm{0}}\f$ as calibration factor:
|
||||
* \f{eqnarray*}{
|
||||
* S &=& S_{\mathrm{0}} \cdot ( 1 + a_1 \cdot T_{\mathrm{DIFF}}
|
||||
* + a_2 \cdot T_{\mathrm{DIFF}}^2 ) \\
|
||||
* \f}
|
||||
* Sensor's voltage (the LSB size is \f$ 156.25\,\mathrm{nV} \f$):
|
||||
* \f{eqnarray*}{
|
||||
* V_{\mathrm{OBJ}} &=& V_{\mathrm{RAW}} \cdot 156.25\,\mathrm{nV}
|
||||
* \f}
|
||||
* Offset voltage:
|
||||
* \f{eqnarray*}{
|
||||
* V_{OS} &=& b_0 + b_1 \cdot T_{\mathrm{DIFF}}
|
||||
* + b_2 \cdot T_{\mathrm{DIFF}}^2 \\
|
||||
* \f}
|
||||
* Seebeck coefficients of the thermopile:
|
||||
* \f{eqnarray*}{
|
||||
* f(V_{\mathrm{OBJ}}) &=& (V_{\mathrm{OBJ}} - V_{O\mathrm{S}})
|
||||
* + c_2 \cdot (V_{\mathrm{OBJ}} - V_{\mathrm{OS}})^2 \\
|
||||
* \f}
|
||||
* Temperature of the target object:
|
||||
* \f{eqnarray*}{
|
||||
* T_{\mathrm{OBJ}} &=& \sqrt[4]{T_{\mathrm{DIE}}^4
|
||||
* + \frac{f(V_{\mathrm{OBJ}})}{S}} \\
|
||||
* \f}
|
||||
* Constants:<br>
|
||||
* \f{eqnarray*}{
|
||||
* a_{\mathrm{1}} &=& 1.75 \cdot 10^{-3} \\
|
||||
* a_{\mathrm{2}} &=& -1.678 \cdot 10^{-5} \\
|
||||
* T_{\mathrm{REF}} &=& 298.15\,\mathrm{K} \\
|
||||
* b_{\mathrm{0}} &=& -2.94 \cdot 10^{-5} \\
|
||||
* b_{\mathrm{1}} &=& -5.7 \cdot 10^{-7} \\
|
||||
* b_{\mathrm{2}} &=& 4.63 \cdot 10^{-9} \\
|
||||
* c_{\mathrm{2}} &=& 13.4
|
||||
* \f}
|
||||
*
|
||||
* The calculation and constants are wrapped from TI TMP006 User's Guide SBOU107.
|
||||
* The TI TMP006 (Infrared Thermopile Contactless Temperature Sensor) measures
|
||||
* the temperature of an object without need of direct contact with the object.
|
||||
* After initialization the sensor can be set active for periodic measurements.
|
||||
* <br> The conversion duration depends on oversample ratio. The oversample
|
||||
* ratio can be determined by sensor initialization. The target object
|
||||
* temperature can be calculated as follows:<br><br>
|
||||
* Temperature of sensor's die (2 times right shifting and devide-by 32):
|
||||
* \f{eqnarray*}{
|
||||
* T_{\mathrm{DIE}} &=& \frac{T_{\mathrm{RAW}}}{128}
|
||||
* \f}
|
||||
* Difference Temperature in Kelvin:
|
||||
* \f{eqnarray*}{
|
||||
* T_{\mathrm{DIFF}} &=& T_{\mathrm{DIE}} - T_{\mathrm{REF}}
|
||||
* \f}
|
||||
* Sensitivity of the thermopile sensor, with \f$S_{\mathrm{0}}\f$ as
|
||||
* calibration factor:
|
||||
* \f{eqnarray*}{
|
||||
* S &=& S_{\mathrm{0}} \cdot ( 1 + a_1 \cdot T_{\mathrm{DIFF}}
|
||||
* + a_2 \cdot T_{\mathrm{DIFF}}^2 ) \\
|
||||
* \f}
|
||||
* Sensor's voltage (the LSB size is \f$ 156.25\,\mathrm{nV} \f$):
|
||||
* \f{eqnarray*}{
|
||||
* V_{\mathrm{OBJ}} &=& V_{\mathrm{RAW}} \cdot 156.25\,\mathrm{nV}
|
||||
* \f}
|
||||
* Offset voltage:
|
||||
* \f{eqnarray*}{
|
||||
* V_{OS} &=& b_0 + b_1 \cdot T_{\mathrm{DIFF}}
|
||||
* + b_2 \cdot T_{\mathrm{DIFF}}^2 \\
|
||||
* \f}
|
||||
* Seebeck coefficients of the thermopile:
|
||||
* \f{eqnarray*}{
|
||||
* f(V_{\mathrm{OBJ}}) &=& (V_{\mathrm{OBJ}} - V_{O\mathrm{S}})
|
||||
* + c_2 \cdot (V_{\mathrm{OBJ}}
|
||||
* - V_{\mathrm{OS}})^2 \\
|
||||
* \f}
|
||||
* Temperature of the target object:
|
||||
* \f{eqnarray*}{
|
||||
* T_{\mathrm{OBJ}} &=& \sqrt[4]{T_{\mathrm{DIE}}^4
|
||||
* + \frac{f(V_{\mathrm{OBJ}})}{S}} \\
|
||||
* \f}
|
||||
* Constants:<br>
|
||||
* \f{eqnarray*}{
|
||||
* a_{\mathrm{1}} &=& 1.75 \cdot 10^{-3} \\
|
||||
* a_{\mathrm{2}} &=& -1.678 \cdot 10^{-5} \\
|
||||
* T_{\mathrm{REF}} &=& 298.15\,\mathrm{K} \\
|
||||
* b_{\mathrm{0}} &=& -2.94 \cdot 10^{-5} \\
|
||||
* b_{\mathrm{1}} &=& -5.7 \cdot 10^{-7} \\
|
||||
* b_{\mathrm{2}} &=& 4.63 \cdot 10^{-9} \\
|
||||
* c_{\mathrm{2}} &=& 13.4
|
||||
* \f}
|
||||
*
|
||||
* The calculation and constants are wrapped from TI TMP006 User's Guide SBOU107.
|
||||
*
|
||||
* @{
|
||||
*
|
||||
@ -70,6 +71,7 @@
|
||||
* @brief Interface definition for the TMP006 sensor driver.
|
||||
*
|
||||
* @author Johann Fischer <j.fischer@phytec.de>
|
||||
* @author Sebastian Meiling <s@mlng.net>
|
||||
*/
|
||||
|
||||
#ifndef TMP006_H
|
||||
@ -84,72 +86,91 @@ extern "C"
|
||||
{
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief TMP006 Default Address
|
||||
*/
|
||||
#ifndef TMP006_I2C_ADDRESS
|
||||
#define TMP006_I2C_ADDRESS 0x41 /**< TMP006 Sensor Default Address */
|
||||
#define TMP006_I2C_ADDRESS (0x41)
|
||||
#endif
|
||||
|
||||
#ifndef TMP006_CONVERSION_TIME
|
||||
#define TMP006_CONVERSION_TIME 1E6 /**< Default Conversion Time in us */
|
||||
#endif
|
||||
|
||||
#define TMP006_CONFIG_CR_AS1 0x00 /**< Conversion Time 0.25 s, AVG Samples: 1 */
|
||||
#define TMP006_CONFIG_CR_AS2 0x01 /**< Conversion Time 0.5 s, AVG Samples: 2 */
|
||||
#define TMP006_CONFIG_CR_AS4 0x02 /**< Conversion Time 1 s, AVG Samples: 4 */
|
||||
#define TMP006_CONFIG_CR_AS8 0x03 /**< Conversion Time 2 s, AVG Samples: 8 */
|
||||
#define TMP006_CONFIG_CR_AS16 0x04 /**< Conversion Time 4 s, AVG Samples: 16 */
|
||||
#define TMP006_CONFIG_CR_DEF TMP006_CONFIG_CR_AS4 /**< Default for Testing */
|
||||
|
||||
#ifndef TMP006_CCONST_S0
|
||||
#define TMP006_CCONST_S0 6.4E-14 /**< Calibration Factor */
|
||||
#endif
|
||||
|
||||
#define TMP006_CCONST_A1 1.75E-3 /**< Constant \f$a_{\mathrm{1}}\f$ */
|
||||
#define TMP006_CCONST_A2 -1.678E-5 /**< Constant \f$a_{\mathrm{2}}\f$ */
|
||||
#define TMP006_CCONST_TREF 298.15 /**< Constant \f$T_{\mathrm{REF}}\f$ */
|
||||
#define TMP006_CCONST_B0 -2.94E-5 /**< Constant \f$b_{\mathrm{0}}\f$ */
|
||||
#define TMP006_CCONST_B1 -5.7E-7 /**< Constant \f$b_{\mathrm{1}}\f$ */
|
||||
#define TMP006_CCONST_B2 4.63E-9 /**< Constant \f$b_{\mathrm{2}}\f$ */
|
||||
#define TMP006_CCONST_C2 13.4 /**< Constant \f$c_{\mathrm{2}}\f$ */
|
||||
#define TMP006_CCONST_LSB_SIZE 156.25E-9 /**< Sensor Voltage Register LSB Size */
|
||||
|
||||
/**
|
||||
* @brief Device descriptor for TMP006 sensors.
|
||||
* @brief Default Conversion Time in us
|
||||
*/
|
||||
#ifndef TMP006_CONVERSION_TIME
|
||||
#define TMP006_CONVERSION_TIME (1E6)
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @name Conversion rate and AVG sampling configuration
|
||||
* @{
|
||||
*/
|
||||
#define TMP006_CONFIG_CR_AS1 (0x00) /**< Conversion Time 0.25s, AVG Samples: 1 */
|
||||
#define TMP006_CONFIG_CR_AS2 (0x01) /**< Conversion Time 0.5s, AVG Samples: 2 */
|
||||
#define TMP006_CONFIG_CR_AS4 (0x02) /**< Conversion Time 1s, AVG Samples: 4 */
|
||||
#define TMP006_CONFIG_CR_AS8 (0x03) /**< Conversion Time 2s, AVG Samples: 8 */
|
||||
#define TMP006_CONFIG_CR_AS16 (0x04) /**< Conversion Time 4s, AVG Samples: 16 */
|
||||
#define TMP006_CONFIG_CR_DEF TMP006_CONFIG_CR_AS4 /**< Default for Testing */
|
||||
/** @} */
|
||||
|
||||
/**
|
||||
* @name Constants for TMP006 calibration
|
||||
* @{
|
||||
*/
|
||||
#ifndef TMP006_CCONST_S0
|
||||
#define TMP006_CCONST_S0 (6.4E-14) /**< Calibration Factor */
|
||||
#endif
|
||||
#define TMP006_CCONST_A1 (1.75E-3) /**< Constant \f$a_{\mathrm{1}}\f$ */
|
||||
#define TMP006_CCONST_A2 (-1.678E-5) /**< Constant \f$a_{\mathrm{2}}\f$ */
|
||||
#define TMP006_CCONST_TREF (298.15) /**< Constant \f$T_{\mathrm{REF}}\f$ */
|
||||
#define TMP006_CCONST_B0 (-2.94E-5) /**< Constant \f$b_{\mathrm{0}}\f$ */
|
||||
#define TMP006_CCONST_B1 (-5.7E-7) /**< Constant \f$b_{\mathrm{1}}\f$ */
|
||||
#define TMP006_CCONST_B2 (4.63E-9) /**< Constant \f$b_{\mathrm{2}}\f$ */
|
||||
#define TMP006_CCONST_C2 (13.4) /**< Constant \f$c_{\mathrm{2}}\f$ */
|
||||
#define TMP006_CCONST_LSB_SIZE (156.25E-9) /**< Sensor Voltage Register LSB Size */
|
||||
/** @} */
|
||||
|
||||
/**
|
||||
* @brief Parameters needed for device initialization
|
||||
*/
|
||||
typedef struct {
|
||||
i2c_t i2c; /**< I2C device, the sensor is connected to */
|
||||
uint8_t addr; /**< the sensor's slave address on the I2C bus */
|
||||
bool initialized; /**< sensor status, true if sensor is initialized */
|
||||
i2c_t i2c; /**< I2C device, the sensor is connected to */
|
||||
uint8_t addr; /**< the sensor's slave address on the I2C bus */
|
||||
uint8_t rate; /**< number of averaged samples */
|
||||
} tmp006_params_t;
|
||||
|
||||
/**
|
||||
* @brief Device descriptor for TMP006 sensors.
|
||||
*/
|
||||
typedef struct {
|
||||
tmp006_params_t p; /**< Configuration parameters */
|
||||
} tmp006_t;
|
||||
|
||||
/**
|
||||
* @brief TMP006 sensor test.
|
||||
* This function looks for Device ID of the TMP006 sensor.
|
||||
*
|
||||
* @param[in] dev device descriptor of sensor
|
||||
*
|
||||
* @return 0 on success
|
||||
* @return -1 on error
|
||||
* @brief TMP006 specific return values
|
||||
*/
|
||||
int tmp006_test(tmp006_t *dev);
|
||||
enum {
|
||||
TMP006_OK, /**< Success, no error */
|
||||
TMP006_ERROR_BUS, /**< I2C bus error */
|
||||
TMP006_ERROR_DEV, /**< internal device error */
|
||||
TMP006_ERROR_CONF, /**< invalid device configuration */
|
||||
TMP006_ERROR, /**< general error */
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief Initialize the TMP006 sensor driver.
|
||||
* @brief Initialize the TMP006 sensor driver.
|
||||
*
|
||||
* @param[out] dev device descriptor of sensor to initialize
|
||||
* @param[in] i2c I2C bus the sensor is connected to
|
||||
* @param[in] address sensor's I2C slave address
|
||||
* @param[in] conv_rate number of averaged samples
|
||||
* @param[in] params configuration parameters
|
||||
*
|
||||
* @return 0 on success
|
||||
* @return -1 if conv_rate is wrong
|
||||
* @return -2 if initialization of I2C bus failed
|
||||
* @return -3 if sensor test failed
|
||||
* @return -4 if sensor configuration failed
|
||||
* @return -TMP006_ERROR_BUS on I2C bus error
|
||||
* @return -TMP006_ERROR_DEV if sensor test failed
|
||||
* @return -TMP006_ERROR_CONF if sensor configuration failed
|
||||
*/
|
||||
int tmp006_init(tmp006_t *dev, i2c_t i2c, uint8_t address, uint8_t conv_rate);
|
||||
int tmp006_init(tmp006_t *dev, const tmp006_params_t *params);
|
||||
|
||||
/**
|
||||
* @brief Reset the TMP006 sensor. After that, the sensor should be reinitialized.
|
||||
* @brief Reset the TMP006 sensor, afterwards it should be reinitialized.
|
||||
*
|
||||
* @param[out] dev device descriptor of sensor
|
||||
*
|
||||
@ -159,7 +180,7 @@ int tmp006_init(tmp006_t *dev, i2c_t i2c, uint8_t address, uint8_t conv_rate);
|
||||
int tmp006_reset(tmp006_t *dev);
|
||||
|
||||
/**
|
||||
* @brief Set active mode, this enables periodic measurements.
|
||||
* @brief Set active mode, this enables periodic measurements.
|
||||
*
|
||||
* @param[in] dev device descriptor of sensor
|
||||
*
|
||||
@ -169,7 +190,7 @@ int tmp006_reset(tmp006_t *dev);
|
||||
int tmp006_set_active(tmp006_t *dev);
|
||||
|
||||
/**
|
||||
* @brief Set standby mode.
|
||||
* @brief Set standby mode.
|
||||
*
|
||||
* @param[in] dev device descriptor of sensor
|
||||
*
|
||||
@ -179,7 +200,7 @@ int tmp006_set_active(tmp006_t *dev);
|
||||
int tmp006_set_standby(tmp006_t *dev);
|
||||
|
||||
/**
|
||||
* @brief Read sensor's data.
|
||||
* @brief Read sensor's data.
|
||||
*
|
||||
* @param[in] dev device descriptor of sensor
|
||||
* @param[out] rawv object voltage value
|
||||
@ -192,7 +213,7 @@ int tmp006_set_standby(tmp006_t *dev);
|
||||
int tmp006_read(tmp006_t *dev, int16_t *rawv, int16_t *rawt, uint8_t *drdy);
|
||||
|
||||
/**
|
||||
* @brief Convert raw sensor values to temperature.
|
||||
* @brief Convert raw sensor values to temperature.
|
||||
*
|
||||
* @param[in] rawv object voltage value
|
||||
* @param[in] rawt raw die temperature value
|
||||
|
||||
65
drivers/tmp006/include/tmp006_params.h
Normal file
65
drivers/tmp006/include/tmp006_params.h
Normal file
@ -0,0 +1,65 @@
|
||||
/*
|
||||
* Copyright (C) 2017 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.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @ingroup drivers_tmp006
|
||||
*
|
||||
* @{
|
||||
* @file
|
||||
* @brief Default configuration for TMP006 devices
|
||||
*
|
||||
* @author Sebastian Meiling <s@mlng.net>
|
||||
*/
|
||||
|
||||
#ifndef TMP006_PARAMS_H
|
||||
#define TMP006_PARAMS_H
|
||||
|
||||
#include "board.h"
|
||||
#include "tmp006.h"
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @name Set default configuration parameters for the TMP006 driver
|
||||
* @{
|
||||
*/
|
||||
#ifndef TMP006_PARAM_I2C
|
||||
#define TMP006_PARAM_I2C I2C_DEV(0)
|
||||
#endif
|
||||
#ifndef TMP006_PARAM_ADDR
|
||||
#define TMP006_PARAM_ADDR (TMP006_I2C_ADDRESS)
|
||||
#endif
|
||||
#ifndef TMP006_PARAM_RATE
|
||||
#define TMP006_PARAM_RATE TMP006_CONFIG_CR_DEF
|
||||
#endif
|
||||
|
||||
#define TMP006_PARAMS_DEFAULT { .i2c = TMP006_PARAM_I2C, \
|
||||
.addr = TMP006_PARAM_ADDR, \
|
||||
.rate = TMP006_PARAM_RATE }
|
||||
/**@}*/
|
||||
|
||||
/**
|
||||
* @brief HDC1000 configuration
|
||||
*/
|
||||
static const tmp006_params_t tmp006_params[] =
|
||||
{
|
||||
#ifdef TMP006_PARAMS_BOARD
|
||||
TMP006_PARAMS_BOARD,
|
||||
#else
|
||||
TMP006_PARAMS_DEFAULT,
|
||||
#endif
|
||||
};
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* TMP006_PARAMS_H */
|
||||
/** @} */
|
||||
44
drivers/tmp006/include/tmp006_regs.h
Normal file
44
drivers/tmp006/include/tmp006_regs.h
Normal file
@ -0,0 +1,44 @@
|
||||
/*
|
||||
* Copyright (C) 2017 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.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @ingroup drivers_tmp006
|
||||
*
|
||||
* @{
|
||||
* @file
|
||||
* @brief Register definitions for TMP006 devices
|
||||
*
|
||||
* @author Sebastian Meiling <s@mlng.net>
|
||||
*/
|
||||
|
||||
#ifndef TMP006_REGS_H
|
||||
#define TMP006_REGS_H
|
||||
|
||||
#include "board.h"
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @name Register Map
|
||||
* @{
|
||||
*/
|
||||
#define TMP006_REGS_V_OBJECT 0x00 /**< Sensor Voltage Register */
|
||||
#define TMP006_REGS_T_AMBIENT 0x01 /**< Ambient Temperature Register */
|
||||
#define TMP006_REGS_CONFIG 0x02 /**< Configuration Register */
|
||||
#define TMP006_REGS_MANUFACTURER_ID 0xFE /**< Manufacturer ID Register */
|
||||
#define TMP006_REGS_DEVICE_ID 0xFF /**< Device ID Register */
|
||||
/** @} */
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* TMP006_REGS_H */
|
||||
/** @} */
|
||||
@ -1,5 +1,6 @@
|
||||
/*
|
||||
* Copyright (C) 2014 PHYTEC Messtechnik GmbH
|
||||
* 2017 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
|
||||
@ -16,230 +17,185 @@
|
||||
*
|
||||
* @author Johann Fischer <j.fischer@phytec.de>
|
||||
* @author Peter Kietzmann <peter.kietzmann@haw-hamburg.de>
|
||||
* @author Sebastian Meiling <s@mlng.net>
|
||||
*
|
||||
* @}
|
||||
*/
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
#include <string.h>
|
||||
#include <math.h>
|
||||
|
||||
#include "log.h"
|
||||
#include "periph/i2c.h"
|
||||
#include "tmp006.h"
|
||||
#include "tmp006_regs.h"
|
||||
|
||||
#define ENABLE_DEBUG (0)
|
||||
#define ENABLE_DEBUG (0)
|
||||
#include "debug.h"
|
||||
|
||||
#define TMP006_V_OBJECT 0x00 /**< Sensor Voltage Register */
|
||||
#define TMP006_T_AMBIENT 0x01 /**< Ambient Temperature Register */
|
||||
#define TMP006_CONFIG 0x02 /**< Configuration Register */
|
||||
#define TMP006_MANUFACTURER_ID 0xFE /**< Manufacturer ID Register */
|
||||
#define TMP006_DEVICE_ID 0xFF /**< Device ID Register */
|
||||
#define TMP006_CONFIG_RST (1 << 15)
|
||||
|
||||
#define TMP006_CONFIG_RST (1 << 15)
|
||||
#define TMP006_CONFIG_MOD_SHIFT (12U)
|
||||
#define TMP006_CONFIG_MOD_MASK (0x7000)
|
||||
#define TMP006_CONFIG_MOD(x) (((uint16_t)(((uint16_t)(x)) << TMP006_CONFIG_MOD_SHIFT))\
|
||||
& TMP006_CONFIG_MOD_MASK)
|
||||
#define TMP006_CONFIG_MOD_CC (0x07)
|
||||
#define TMP006_CONFIG_MOD_OFF (0x00)
|
||||
|
||||
#define TMP006_CONFIG_MOD_SHIFT 12
|
||||
#define TMP006_CONFIG_MOD_MASK 0x7000
|
||||
#define TMP006_CONFIG_MOD(x) (((uint16_t)(((uint16_t)(x))<<TMP006_CONFIG_MOD_SHIFT))\
|
||||
&TMP006_CONFIG_MOD_MASK)
|
||||
#define TMP006_CONFIG_MOD_CC 0x07
|
||||
#define TMP006_CONFIG_MOD_OFF 0x00
|
||||
#define TMP006_CONFIG_CR_SHIFT (9U)
|
||||
#define TMP006_CONFIG_CR_MASK (0x0E00)
|
||||
#define TMP006_CONFIG_CR(x) (((uint16_t)(((uint16_t)(x)) << TMP006_CONFIG_CR_SHIFT))\
|
||||
& TMP006_CONFIG_CR_MASK)
|
||||
|
||||
#define TMP006_CONFIG_CR_SHIFT 9
|
||||
#define TMP006_CONFIG_CR_MASK 0x0E00
|
||||
#define TMP006_CONFIG_CR(x) (((uint16_t)(((uint16_t)(x))<<TMP006_CONFIG_CR_SHIFT))\
|
||||
&TMP006_CONFIG_CR_MASK)
|
||||
#define TMP006_CONFIG_DRDY_PIN_EN (1 << 8)
|
||||
#define TMP006_CONFIG_DRDY (1 << 7)
|
||||
|
||||
#define TMP006_CONFIG_DRDY_PIN_EN (1 << 8)
|
||||
#define TMP006_CONFIG_DRDY (1 << 7)
|
||||
#define TMP006_MID_VALUE (0x5449) /**< Manufacturer ID */
|
||||
#define TMP006_DID_VALUE (0x0067) /**< Device ID */
|
||||
|
||||
#define TMP006_MID_VALUE 0x5449 /**< Manufacturer ID */
|
||||
#define TMP006_DID_VALUE 0x0067 /**< Device ID */
|
||||
#define I2C_SPEED I2C_SPEED_FAST
|
||||
#define BUS (dev->p.i2c)
|
||||
#define ADDR (dev->p.addr)
|
||||
|
||||
#define I2C_SPEED I2C_SPEED_FAST
|
||||
|
||||
int tmp006_test(tmp006_t *dev)
|
||||
int tmp006_init(tmp006_t *dev, const tmp006_params_t *params)
|
||||
{
|
||||
int status;
|
||||
/* check parameters */
|
||||
assert(dev && params);
|
||||
|
||||
uint8_t reg[2];
|
||||
uint16_t tmp;
|
||||
|
||||
/* Acquire exclusive access to the bus. */
|
||||
i2c_acquire(dev->i2c);
|
||||
status = i2c_read_regs(dev->i2c, dev->addr, TMP006_DEVICE_ID, reg, 2);
|
||||
if (status != 2) {
|
||||
/* Release the bus for other threads. */
|
||||
i2c_release(dev->i2c);
|
||||
return -1;
|
||||
}
|
||||
i2c_release(dev->i2c);
|
||||
/* initialize the device descriptor */
|
||||
memcpy(&dev->p, params, sizeof(tmp006_params_t));
|
||||
|
||||
if (dev->p.rate > TMP006_CONFIG_CR_AS16) {
|
||||
LOG_ERROR("tmp006_init: invalid conversion rate!\n");
|
||||
return -TMP006_ERROR_CONF;
|
||||
}
|
||||
|
||||
/* setup the I2C bus */
|
||||
i2c_acquire(BUS);
|
||||
if (i2c_init_master(BUS, I2C_SPEED) < 0) {
|
||||
i2c_release(BUS);
|
||||
LOG_ERROR("tmp006_init: error initializing I2C bus\n");
|
||||
return -TMP006_ERROR_BUS;
|
||||
}
|
||||
/* test device id */
|
||||
if (i2c_read_regs(BUS, ADDR, TMP006_REGS_DEVICE_ID, reg, 2) != 2) {
|
||||
i2c_release(BUS);
|
||||
LOG_ERROR("tmp006_init: error reading device ID!\n");
|
||||
return -TMP006_ERROR_BUS;
|
||||
}
|
||||
tmp = ((uint16_t)reg[0] << 8) | reg[1];
|
||||
|
||||
if (tmp != TMP006_DID_VALUE) {
|
||||
return -1;
|
||||
return -TMP006_ERROR_DEV;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int tmp006_init(tmp006_t *dev, i2c_t i2c, uint8_t address, uint8_t conv_rate)
|
||||
{
|
||||
int status;
|
||||
uint8_t reg[2];
|
||||
|
||||
/* write device descriptor */
|
||||
dev->i2c = i2c;
|
||||
dev->addr = address;
|
||||
dev->initialized = false;
|
||||
|
||||
if (conv_rate > TMP006_CONFIG_CR_AS16) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
i2c_acquire(dev->i2c);
|
||||
/* initialize the I2C bus */
|
||||
status = i2c_init_master(i2c, I2C_SPEED);
|
||||
if (status < 0) {
|
||||
i2c_release(dev->i2c);
|
||||
return -2;
|
||||
}
|
||||
i2c_release(dev->i2c);
|
||||
|
||||
if (tmp006_test(dev)) {
|
||||
return -3;
|
||||
}
|
||||
|
||||
uint16_t tmp = TMP006_CONFIG_CR(conv_rate);
|
||||
/* set conversion rate */
|
||||
tmp = TMP006_CONFIG_CR(dev->p.rate);
|
||||
reg[0] = (tmp >> 8);
|
||||
reg[1] = tmp;
|
||||
|
||||
/* Acquire exclusive access to the bus. */
|
||||
i2c_acquire(dev->i2c);
|
||||
status = i2c_write_regs(dev->i2c, dev->addr, TMP006_CONFIG, reg, 2);
|
||||
if (status != 2) {
|
||||
i2c_release(dev->i2c);
|
||||
return -4;
|
||||
if (i2c_write_regs(BUS, ADDR, TMP006_REGS_CONFIG, reg, 2) != 2) {
|
||||
i2c_release(BUS);
|
||||
LOG_ERROR("tmp006_init: error setting conversion rate!\n");
|
||||
return -TMP006_ERROR_BUS;
|
||||
}
|
||||
i2c_release(dev->i2c);
|
||||
dev->initialized = true;
|
||||
return 0;
|
||||
i2c_release(BUS);
|
||||
|
||||
return TMP006_OK;
|
||||
}
|
||||
|
||||
int tmp006_reset(tmp006_t *dev)
|
||||
{
|
||||
int status;
|
||||
uint8_t reg[2];
|
||||
uint16_t tmp = TMP006_CONFIG_RST;
|
||||
reg[0] = (tmp >> 8);
|
||||
reg[1] = tmp;
|
||||
dev->initialized = false;
|
||||
|
||||
/* Acquire exclusive access to the bus. */
|
||||
i2c_acquire(dev->i2c);
|
||||
status = i2c_write_regs(dev->i2c, dev->addr, TMP006_CONFIG, reg, 2);
|
||||
if (status != 2) {
|
||||
i2c_release(dev->i2c);
|
||||
return -1;
|
||||
i2c_acquire(BUS);
|
||||
if (i2c_write_regs(BUS, ADDR, TMP006_REGS_CONFIG, reg, 2) != 2) {
|
||||
i2c_release(BUS);
|
||||
return -TMP006_ERROR_BUS;
|
||||
}
|
||||
i2c_release(dev->i2c);
|
||||
return 0;
|
||||
i2c_release(BUS);
|
||||
return TMP006_OK;
|
||||
}
|
||||
|
||||
int tmp006_set_active(tmp006_t *dev)
|
||||
{
|
||||
int status;
|
||||
uint8_t reg[2];
|
||||
|
||||
if (dev->initialized == false) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
i2c_acquire(dev->i2c);
|
||||
status = i2c_read_regs(dev->i2c, dev->addr, TMP006_CONFIG, reg, 2);
|
||||
if (status != 2) {
|
||||
i2c_release(dev->i2c);
|
||||
return -1;
|
||||
i2c_acquire(BUS);
|
||||
if (i2c_read_regs(BUS, ADDR, TMP006_REGS_CONFIG, reg, 2) != 2) {
|
||||
i2c_release(BUS);
|
||||
return -TMP006_ERROR_BUS;
|
||||
}
|
||||
|
||||
reg[0] |= (TMP006_CONFIG_MOD(TMP006_CONFIG_MOD_CC) >> 8);
|
||||
|
||||
status = i2c_write_regs(dev->i2c, dev->addr, TMP006_CONFIG, reg, 2);
|
||||
if (status != 2) {
|
||||
i2c_release(dev->i2c);
|
||||
return -1;
|
||||
if (i2c_write_regs(BUS, ADDR, TMP006_REGS_CONFIG, reg, 2) != 2) {
|
||||
i2c_release(BUS);
|
||||
return -TMP006_ERROR_BUS;
|
||||
}
|
||||
i2c_release(dev->i2c);
|
||||
return 0;
|
||||
i2c_release(BUS);
|
||||
return TMP006_OK;
|
||||
}
|
||||
|
||||
int tmp006_set_standby(tmp006_t *dev)
|
||||
{
|
||||
int status;
|
||||
uint8_t reg[2];
|
||||
|
||||
i2c_acquire(dev->i2c);
|
||||
status = i2c_read_regs(dev->i2c, dev->addr, TMP006_CONFIG, reg, 2);
|
||||
if (status != 2) {
|
||||
i2c_release(dev->i2c);
|
||||
return -1;
|
||||
i2c_acquire(BUS);
|
||||
if (i2c_read_regs(BUS, ADDR, TMP006_REGS_CONFIG, reg, 2) != 2) {
|
||||
i2c_release(BUS);
|
||||
return -TMP006_ERROR_BUS;
|
||||
}
|
||||
i2c_release(dev->i2c);
|
||||
|
||||
reg[0] &= ~(TMP006_CONFIG_MOD(TMP006_CONFIG_MOD_CC) >> 8);
|
||||
|
||||
i2c_acquire(dev->i2c);
|
||||
status = i2c_write_regs(dev->i2c, dev->addr, TMP006_CONFIG, reg, 2);
|
||||
if (status != 2) {
|
||||
i2c_release(dev->i2c);
|
||||
return -1;
|
||||
if (i2c_write_regs(BUS, ADDR, TMP006_REGS_CONFIG, reg, 2) != 2) {
|
||||
i2c_release(BUS);
|
||||
return -TMP006_ERROR_BUS;
|
||||
}
|
||||
i2c_release(dev->i2c);
|
||||
return 0;
|
||||
i2c_release(BUS);
|
||||
return TMP006_OK;
|
||||
}
|
||||
|
||||
int tmp006_read(tmp006_t *dev, int16_t *rawv, int16_t *rawt, uint8_t *drdy)
|
||||
{
|
||||
int status;
|
||||
uint8_t buf[2];
|
||||
uint8_t reg[2];
|
||||
|
||||
if (dev->initialized == false) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
i2c_acquire(dev->i2c);
|
||||
i2c_acquire(BUS);
|
||||
/* Register bytes are sent MSB first. */
|
||||
status = i2c_read_regs(dev->i2c, dev->addr, TMP006_CONFIG, buf, 2);
|
||||
if (status != 2) {
|
||||
i2c_release(dev->i2c);
|
||||
return -1;
|
||||
if (i2c_read_regs(BUS, ADDR, TMP006_REGS_CONFIG, reg, 2) != 2) {
|
||||
i2c_release(BUS);
|
||||
return -TMP006_ERROR_BUS;
|
||||
}
|
||||
i2c_release(dev->i2c);
|
||||
|
||||
*drdy = buf[1] & (TMP006_CONFIG_DRDY);
|
||||
i2c_release(BUS);
|
||||
|
||||
*drdy = reg[1] & (TMP006_CONFIG_DRDY);
|
||||
if (!(*drdy)) {
|
||||
/* conversion in progress */
|
||||
return -1;
|
||||
LOG_DEBUG("tmp006_read: conversion in progress!\n");
|
||||
return -TMP006_ERROR;
|
||||
}
|
||||
|
||||
i2c_acquire(dev->i2c);
|
||||
status = i2c_read_regs(dev->i2c, dev->addr, TMP006_V_OBJECT, buf, 2);
|
||||
if (status != 2) {
|
||||
i2c_release(dev->i2c);
|
||||
return -1;
|
||||
i2c_acquire(BUS);
|
||||
if (i2c_read_regs(BUS, ADDR, TMP006_REGS_V_OBJECT, reg, 2) != 2) {
|
||||
i2c_release(BUS);
|
||||
return -TMP006_ERROR_BUS;
|
||||
}
|
||||
i2c_release(dev->i2c);
|
||||
i2c_release(BUS);
|
||||
|
||||
*rawv = ((uint16_t)buf[0] << 8) | buf[1];
|
||||
*rawv = ((uint16_t)reg[0] << 8) | reg[1];
|
||||
|
||||
i2c_acquire(dev->i2c);
|
||||
status = i2c_read_regs(dev->i2c, dev->addr, TMP006_T_AMBIENT, buf, 2);
|
||||
if (status != 2) {
|
||||
i2c_release(dev->i2c);
|
||||
return -1;
|
||||
i2c_acquire(BUS);
|
||||
if (i2c_read_regs(BUS, ADDR, TMP006_REGS_T_AMBIENT, reg, 2) != 2) {
|
||||
i2c_release(BUS);
|
||||
return -TMP006_ERROR_BUS;
|
||||
}
|
||||
i2c_release(dev->i2c);
|
||||
*rawt = ((uint16_t)buf[0] << 8) | buf[1];
|
||||
return 0;
|
||||
i2c_release(BUS);
|
||||
*rawt = ((uint16_t)reg[0] << 8) | reg[1];
|
||||
return TMP006_OK;
|
||||
}
|
||||
|
||||
void tmp006_convert(int16_t rawv, int16_t rawt, float *tamb, float *tobj)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user