mirror of
https://github.com/RIOT-OS/RIOT.git
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drivers: rework tmp006
This commit is contained in:
smlng
parent
3af1fe5675
commit
42a09128aa
@ -76,6 +76,9 @@ endif
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ifneq (,$(filter bm%280,$(USEMODULE)))
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ifneq (,$(filter bm%280,$(USEMODULE)))
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USEMODULE_INCLUDES += $(RIOTBASE)/drivers/bmx280/include
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USEMODULE_INCLUDES += $(RIOTBASE)/drivers/bmx280/include
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endif
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endif
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ifneq (,$(filter tmp006,$(USEMODULE)))
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USEMODULE_INCLUDES += $(RIOTBASE)/drivers/tmp006/include
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endif
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ifneq (,$(filter tsl2561,$(USEMODULE)))
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ifneq (,$(filter tsl2561,$(USEMODULE)))
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USEMODULE_INCLUDES += $(RIOTBASE)/drivers/tsl2561/include
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USEMODULE_INCLUDES += $(RIOTBASE)/drivers/tsl2561/include
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endif
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endif
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@ -1,5 +1,6 @@
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/*
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/*
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* Copyright (C) 2014 PHYTEC Messtechnik GmbH
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* Copyright (C) 2014 PHYTEC Messtechnik GmbH
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* 2017 HAW Hamburg
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*
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* General Public License v2.1. See the file LICENSE in the top level
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@ -7,17 +8,16 @@
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*/
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*/
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/**
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/**
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* @defgroup drivers_tmp006 TMP006 Infrared Thermopile Sensor
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* @defgroup drivers_tmp006 TI TMP006 Infrared Thermopile Sensor
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* @ingroup drivers_sensors
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* @ingroup drivers_sensors
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* @brief Driver for the Texas Instruments TMP006 sensor.
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* @brief Driver for the Texas Instruments TMP006 sensor.
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* The sensor measures the temperature of an object
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*
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* without the need of direct contact with the object.
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* The TI TMP006 (Infrared Thermopile Contactless Temperature Sensor) measures
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* After initialization and set active the sensor
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* the temperature of an object without need of direct contact with the object.
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* will make measurements at periodic times.
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* After initialization the sensor can be set active for periodic measurements.
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* The conversion duration depends on oversample ratio.<br>
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* <br> The conversion duration depends on oversample ratio. The oversample
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* The oversample ratio can be determined
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* ratio can be determined by sensor initialization. The target object
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* by sensor initialization.<br>
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* temperature can be calculated as follows:<br><br>
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* The target object temperature can be calculated as follows:<br><br>
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* Temperature of sensor's die (2 times right shifting and devide-by 32):
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* Temperature of sensor's die (2 times right shifting and devide-by 32):
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* \f{eqnarray*}{
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* \f{eqnarray*}{
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* T_{\mathrm{DIE}} &=& \frac{T_{\mathrm{RAW}}}{128}
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* T_{\mathrm{DIE}} &=& \frac{T_{\mathrm{RAW}}}{128}
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@ -26,8 +26,8 @@
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* \f{eqnarray*}{
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* \f{eqnarray*}{
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* T_{\mathrm{DIFF}} &=& T_{\mathrm{DIE}} - T_{\mathrm{REF}}
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* T_{\mathrm{DIFF}} &=& T_{\mathrm{DIE}} - T_{\mathrm{REF}}
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* \f}
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* \f}
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* Sensitivity of the thermopile sensor,
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* Sensitivity of the thermopile sensor, with \f$S_{\mathrm{0}}\f$ as
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* with \f$S_{\mathrm{0}}\f$ as calibration factor:
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* calibration factor:
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* \f{eqnarray*}{
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* \f{eqnarray*}{
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* S &=& S_{\mathrm{0}} \cdot ( 1 + a_1 \cdot T_{\mathrm{DIFF}}
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* S &=& S_{\mathrm{0}} \cdot ( 1 + a_1 \cdot T_{\mathrm{DIFF}}
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* + a_2 \cdot T_{\mathrm{DIFF}}^2 ) \\
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* + a_2 \cdot T_{\mathrm{DIFF}}^2 ) \\
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@ -44,7 +44,8 @@
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* Seebeck coefficients of the thermopile:
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* Seebeck coefficients of the thermopile:
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* \f{eqnarray*}{
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* \f{eqnarray*}{
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* f(V_{\mathrm{OBJ}}) &=& (V_{\mathrm{OBJ}} - V_{O\mathrm{S}})
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* f(V_{\mathrm{OBJ}}) &=& (V_{\mathrm{OBJ}} - V_{O\mathrm{S}})
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* + c_2 \cdot (V_{\mathrm{OBJ}} - V_{\mathrm{OS}})^2 \\
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* + c_2 \cdot (V_{\mathrm{OBJ}}
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* - V_{\mathrm{OS}})^2 \\
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* \f}
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* \f}
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* Temperature of the target object:
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* Temperature of the target object:
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* \f{eqnarray*}{
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* \f{eqnarray*}{
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@ -70,6 +71,7 @@
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* @brief Interface definition for the TMP006 sensor driver.
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* @brief Interface definition for the TMP006 sensor driver.
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*
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*
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* @author Johann Fischer <j.fischer@phytec.de>
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* @author Johann Fischer <j.fischer@phytec.de>
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* @author Sebastian Meiling <s@mlng.net>
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*/
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*/
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#ifndef TMP006_H
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#ifndef TMP006_H
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@ -84,72 +86,91 @@ extern "C"
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{
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{
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#endif
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#endif
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/**
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* @brief TMP006 Default Address
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*/
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#ifndef TMP006_I2C_ADDRESS
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#ifndef TMP006_I2C_ADDRESS
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#define TMP006_I2C_ADDRESS 0x41 /**< TMP006 Sensor Default Address */
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#define TMP006_I2C_ADDRESS (0x41)
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#endif
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#endif
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/**
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* @brief Default Conversion Time in us
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*/
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#ifndef TMP006_CONVERSION_TIME
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#ifndef TMP006_CONVERSION_TIME
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#define TMP006_CONVERSION_TIME 1E6 /**< Default Conversion Time in us */
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#define TMP006_CONVERSION_TIME (1E6)
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#endif
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#endif
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#define TMP006_CONFIG_CR_AS1 0x00 /**< Conversion Time 0.25 s, AVG Samples: 1 */
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/**
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#define TMP006_CONFIG_CR_AS2 0x01 /**< Conversion Time 0.5 s, AVG Samples: 2 */
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* @name Conversion rate and AVG sampling configuration
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#define TMP006_CONFIG_CR_AS4 0x02 /**< Conversion Time 1 s, AVG Samples: 4 */
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* @{
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#define TMP006_CONFIG_CR_AS8 0x03 /**< Conversion Time 2 s, AVG Samples: 8 */
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*/
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#define TMP006_CONFIG_CR_AS16 0x04 /**< Conversion Time 4 s, AVG Samples: 16 */
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#define TMP006_CONFIG_CR_AS1 (0x00) /**< Conversion Time 0.25s, AVG Samples: 1 */
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#define TMP006_CONFIG_CR_AS2 (0x01) /**< Conversion Time 0.5s, AVG Samples: 2 */
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#define TMP006_CONFIG_CR_AS4 (0x02) /**< Conversion Time 1s, AVG Samples: 4 */
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#define TMP006_CONFIG_CR_AS8 (0x03) /**< Conversion Time 2s, AVG Samples: 8 */
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#define TMP006_CONFIG_CR_AS16 (0x04) /**< Conversion Time 4s, AVG Samples: 16 */
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#define TMP006_CONFIG_CR_DEF TMP006_CONFIG_CR_AS4 /**< Default for Testing */
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#define TMP006_CONFIG_CR_DEF TMP006_CONFIG_CR_AS4 /**< Default for Testing */
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/** @} */
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/**
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* @name Constants for TMP006 calibration
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* @{
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*/
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#ifndef TMP006_CCONST_S0
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#ifndef TMP006_CCONST_S0
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#define TMP006_CCONST_S0 6.4E-14 /**< Calibration Factor */
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#define TMP006_CCONST_S0 (6.4E-14) /**< Calibration Factor */
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#endif
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#endif
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#define TMP006_CCONST_A1 (1.75E-3) /**< Constant \f$a_{\mathrm{1}}\f$ */
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#define TMP006_CCONST_A2 (-1.678E-5) /**< Constant \f$a_{\mathrm{2}}\f$ */
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#define TMP006_CCONST_TREF (298.15) /**< Constant \f$T_{\mathrm{REF}}\f$ */
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#define TMP006_CCONST_B0 (-2.94E-5) /**< Constant \f$b_{\mathrm{0}}\f$ */
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#define TMP006_CCONST_B1 (-5.7E-7) /**< Constant \f$b_{\mathrm{1}}\f$ */
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#define TMP006_CCONST_B2 (4.63E-9) /**< Constant \f$b_{\mathrm{2}}\f$ */
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#define TMP006_CCONST_C2 (13.4) /**< Constant \f$c_{\mathrm{2}}\f$ */
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#define TMP006_CCONST_LSB_SIZE (156.25E-9) /**< Sensor Voltage Register LSB Size */
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/** @} */
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#define TMP006_CCONST_A1 1.75E-3 /**< Constant \f$a_{\mathrm{1}}\f$ */
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/**
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#define TMP006_CCONST_A2 -1.678E-5 /**< Constant \f$a_{\mathrm{2}}\f$ */
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* @brief Parameters needed for device initialization
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#define TMP006_CCONST_TREF 298.15 /**< Constant \f$T_{\mathrm{REF}}\f$ */
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*/
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#define TMP006_CCONST_B0 -2.94E-5 /**< Constant \f$b_{\mathrm{0}}\f$ */
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typedef struct {
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#define TMP006_CCONST_B1 -5.7E-7 /**< Constant \f$b_{\mathrm{1}}\f$ */
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i2c_t i2c; /**< I2C device, the sensor is connected to */
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#define TMP006_CCONST_B2 4.63E-9 /**< Constant \f$b_{\mathrm{2}}\f$ */
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uint8_t addr; /**< the sensor's slave address on the I2C bus */
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#define TMP006_CCONST_C2 13.4 /**< Constant \f$c_{\mathrm{2}}\f$ */
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uint8_t rate; /**< number of averaged samples */
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#define TMP006_CCONST_LSB_SIZE 156.25E-9 /**< Sensor Voltage Register LSB Size */
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} tmp006_params_t;
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/**
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/**
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* @brief Device descriptor for TMP006 sensors.
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* @brief Device descriptor for TMP006 sensors.
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*/
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*/
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typedef struct {
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typedef struct {
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i2c_t i2c; /**< I2C device, the sensor is connected to */
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tmp006_params_t p; /**< Configuration parameters */
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uint8_t addr; /**< the sensor's slave address on the I2C bus */
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bool initialized; /**< sensor status, true if sensor is initialized */
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} tmp006_t;
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} tmp006_t;
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/**
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/**
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* @brief TMP006 sensor test.
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* @brief TMP006 specific return values
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* This function looks for Device ID of the TMP006 sensor.
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*
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* @param[in] dev device descriptor of sensor
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*
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* @return 0 on success
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* @return -1 on error
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*/
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*/
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int tmp006_test(tmp006_t *dev);
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enum {
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TMP006_OK, /**< Success, no error */
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TMP006_ERROR_BUS, /**< I2C bus error */
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TMP006_ERROR_DEV, /**< internal device error */
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TMP006_ERROR_CONF, /**< invalid device configuration */
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TMP006_ERROR, /**< general error */
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};
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/**
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/**
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* @brief Initialize the TMP006 sensor driver.
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* @brief Initialize the TMP006 sensor driver.
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*
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*
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* @param[out] dev device descriptor of sensor to initialize
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* @param[out] dev device descriptor of sensor to initialize
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* @param[in] i2c I2C bus the sensor is connected to
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* @param[in] params configuration parameters
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* @param[in] address sensor's I2C slave address
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* @param[in] conv_rate number of averaged samples
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*
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*
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* @return 0 on success
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* @return 0 on success
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* @return -1 if conv_rate is wrong
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* @return -TMP006_ERROR_BUS on I2C bus error
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* @return -2 if initialization of I2C bus failed
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* @return -TMP006_ERROR_DEV if sensor test failed
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* @return -3 if sensor test failed
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* @return -TMP006_ERROR_CONF if sensor configuration failed
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* @return -4 if sensor configuration failed
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*/
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*/
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int tmp006_init(tmp006_t *dev, i2c_t i2c, uint8_t address, uint8_t conv_rate);
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int tmp006_init(tmp006_t *dev, const tmp006_params_t *params);
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/**
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/**
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* @brief Reset the TMP006 sensor. After that, the sensor should be reinitialized.
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* @brief Reset the TMP006 sensor, afterwards it should be reinitialized.
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*
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*
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* @param[out] dev device descriptor of sensor
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* @param[out] dev device descriptor of sensor
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*
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*
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65
drivers/tmp006/include/tmp006_params.h
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65
drivers/tmp006/include/tmp006_params.h
Normal file
@ -0,0 +1,65 @@
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/*
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* Copyright (C) 2017 HAW Hamburg
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup drivers_tmp006
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*
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* @{
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* @file
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* @brief Default configuration for TMP006 devices
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*
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* @author Sebastian Meiling <s@mlng.net>
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*/
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#ifndef TMP006_PARAMS_H
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#define TMP006_PARAMS_H
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#include "board.h"
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#include "tmp006.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @name Set default configuration parameters for the TMP006 driver
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* @{
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*/
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#ifndef TMP006_PARAM_I2C
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#define TMP006_PARAM_I2C I2C_DEV(0)
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#endif
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#ifndef TMP006_PARAM_ADDR
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#define TMP006_PARAM_ADDR (TMP006_I2C_ADDRESS)
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#endif
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#ifndef TMP006_PARAM_RATE
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#define TMP006_PARAM_RATE TMP006_CONFIG_CR_DEF
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#endif
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#define TMP006_PARAMS_DEFAULT { .i2c = TMP006_PARAM_I2C, \
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.addr = TMP006_PARAM_ADDR, \
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.rate = TMP006_PARAM_RATE }
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/**@}*/
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/**
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* @brief HDC1000 configuration
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*/
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static const tmp006_params_t tmp006_params[] =
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{
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#ifdef TMP006_PARAMS_BOARD
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TMP006_PARAMS_BOARD,
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#else
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TMP006_PARAMS_DEFAULT,
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#endif
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};
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#ifdef __cplusplus
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}
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#endif
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#endif /* TMP006_PARAMS_H */
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/** @} */
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44
drivers/tmp006/include/tmp006_regs.h
Normal file
44
drivers/tmp006/include/tmp006_regs.h
Normal file
@ -0,0 +1,44 @@
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/*
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* Copyright (C) 2017 HAW Hamburg
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup drivers_tmp006
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*
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* @{
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* @file
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* @brief Register definitions for TMP006 devices
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*
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* @author Sebastian Meiling <s@mlng.net>
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*/
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#ifndef TMP006_REGS_H
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#define TMP006_REGS_H
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#include "board.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @name Register Map
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* @{
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*/
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#define TMP006_REGS_V_OBJECT 0x00 /**< Sensor Voltage Register */
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#define TMP006_REGS_T_AMBIENT 0x01 /**< Ambient Temperature Register */
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#define TMP006_REGS_CONFIG 0x02 /**< Configuration Register */
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#define TMP006_REGS_MANUFACTURER_ID 0xFE /**< Manufacturer ID Register */
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#define TMP006_REGS_DEVICE_ID 0xFF /**< Device ID Register */
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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#endif /* TMP006_REGS_H */
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/** @} */
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@ -1,5 +1,6 @@
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/*
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/*
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* Copyright (C) 2014 PHYTEC Messtechnik GmbH
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* Copyright (C) 2014 PHYTEC Messtechnik GmbH
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* 2017 HAW Hamburg
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*
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* General Public License v2.1. See the file LICENSE in the top level
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@ -16,230 +17,185 @@
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*
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*
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* @author Johann Fischer <j.fischer@phytec.de>
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* @author Johann Fischer <j.fischer@phytec.de>
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* @author Peter Kietzmann <peter.kietzmann@haw-hamburg.de>
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* @author Peter Kietzmann <peter.kietzmann@haw-hamburg.de>
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* @author Sebastian Meiling <s@mlng.net>
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*
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*
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* @}
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* @}
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*/
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*/
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#include <stdint.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdbool.h>
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#include <string.h>
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#include <math.h>
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#include <math.h>
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#include "log.h"
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#include "periph/i2c.h"
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#include "periph/i2c.h"
|
||||||
#include "tmp006.h"
|
#include "tmp006.h"
|
||||||
|
#include "tmp006_regs.h"
|
||||||
|
|
||||||
#define ENABLE_DEBUG (0)
|
#define ENABLE_DEBUG (0)
|
||||||
#include "debug.h"
|
#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 12
|
#define TMP006_CONFIG_MOD_SHIFT (12U)
|
||||||
#define TMP006_CONFIG_MOD_MASK 0x7000
|
#define TMP006_CONFIG_MOD_MASK (0x7000)
|
||||||
#define TMP006_CONFIG_MOD(x) (((uint16_t)(((uint16_t)(x))<<TMP006_CONFIG_MOD_SHIFT))\
|
#define TMP006_CONFIG_MOD(x) (((uint16_t)(((uint16_t)(x)) << TMP006_CONFIG_MOD_SHIFT))\
|
||||||
&TMP006_CONFIG_MOD_MASK)
|
& TMP006_CONFIG_MOD_MASK)
|
||||||
#define TMP006_CONFIG_MOD_CC 0x07
|
#define TMP006_CONFIG_MOD_CC (0x07)
|
||||||
#define TMP006_CONFIG_MOD_OFF 0x00
|
#define TMP006_CONFIG_MOD_OFF (0x00)
|
||||||
|
|
||||||
#define TMP006_CONFIG_CR_SHIFT 9
|
#define TMP006_CONFIG_CR_SHIFT (9U)
|
||||||
#define TMP006_CONFIG_CR_MASK 0x0E00
|
#define TMP006_CONFIG_CR_MASK (0x0E00)
|
||||||
#define TMP006_CONFIG_CR(x) (((uint16_t)(((uint16_t)(x))<<TMP006_CONFIG_CR_SHIFT))\
|
#define TMP006_CONFIG_CR(x) (((uint16_t)(((uint16_t)(x)) << TMP006_CONFIG_CR_SHIFT))\
|
||||||
&TMP006_CONFIG_CR_MASK)
|
& TMP006_CONFIG_CR_MASK)
|
||||||
|
|
||||||
#define TMP006_CONFIG_DRDY_PIN_EN (1 << 8)
|
#define TMP006_CONFIG_DRDY_PIN_EN (1 << 8)
|
||||||
#define TMP006_CONFIG_DRDY (1 << 7)
|
#define TMP006_CONFIG_DRDY (1 << 7)
|
||||||
|
|
||||||
#define TMP006_MID_VALUE 0x5449 /**< Manufacturer ID */
|
#define TMP006_MID_VALUE (0x5449) /**< Manufacturer ID */
|
||||||
#define TMP006_DID_VALUE 0x0067 /**< Device ID */
|
#define TMP006_DID_VALUE (0x0067) /**< Device ID */
|
||||||
|
|
||||||
#define I2C_SPEED I2C_SPEED_FAST
|
#define I2C_SPEED I2C_SPEED_FAST
|
||||||
|
#define BUS (dev->p.i2c)
|
||||||
|
#define ADDR (dev->p.addr)
|
||||||
|
|
||||||
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];
|
uint8_t reg[2];
|
||||||
uint16_t tmp;
|
uint16_t tmp;
|
||||||
|
|
||||||
/* Acquire exclusive access to the bus. */
|
/* initialize the device descriptor */
|
||||||
i2c_acquire(dev->i2c);
|
memcpy(&dev->p, params, sizeof(tmp006_params_t));
|
||||||
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);
|
|
||||||
|
|
||||||
|
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];
|
tmp = ((uint16_t)reg[0] << 8) | reg[1];
|
||||||
|
|
||||||
if (tmp != TMP006_DID_VALUE) {
|
if (tmp != TMP006_DID_VALUE) {
|
||||||
return -1;
|
return -TMP006_ERROR_DEV;
|
||||||
}
|
}
|
||||||
return 0;
|
/* set conversion rate */
|
||||||
}
|
tmp = TMP006_CONFIG_CR(dev->p.rate);
|
||||||
|
|
||||||
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);
|
|
||||||
reg[0] = (tmp >> 8);
|
reg[0] = (tmp >> 8);
|
||||||
reg[1] = tmp;
|
reg[1] = tmp;
|
||||||
|
if (i2c_write_regs(BUS, ADDR, TMP006_REGS_CONFIG, reg, 2) != 2) {
|
||||||
/* Acquire exclusive access to the bus. */
|
i2c_release(BUS);
|
||||||
i2c_acquire(dev->i2c);
|
LOG_ERROR("tmp006_init: error setting conversion rate!\n");
|
||||||
status = i2c_write_regs(dev->i2c, dev->addr, TMP006_CONFIG, reg, 2);
|
return -TMP006_ERROR_BUS;
|
||||||
if (status != 2) {
|
|
||||||
i2c_release(dev->i2c);
|
|
||||||
return -4;
|
|
||||||
}
|
}
|
||||||
i2c_release(dev->i2c);
|
i2c_release(BUS);
|
||||||
dev->initialized = true;
|
|
||||||
return 0;
|
return TMP006_OK;
|
||||||
}
|
}
|
||||||
|
|
||||||
int tmp006_reset(tmp006_t *dev)
|
int tmp006_reset(tmp006_t *dev)
|
||||||
{
|
{
|
||||||
int status;
|
|
||||||
uint8_t reg[2];
|
uint8_t reg[2];
|
||||||
uint16_t tmp = TMP006_CONFIG_RST;
|
uint16_t tmp = TMP006_CONFIG_RST;
|
||||||
reg[0] = (tmp >> 8);
|
reg[0] = (tmp >> 8);
|
||||||
reg[1] = tmp;
|
reg[1] = tmp;
|
||||||
dev->initialized = false;
|
|
||||||
|
|
||||||
/* Acquire exclusive access to the bus. */
|
/* Acquire exclusive access to the bus. */
|
||||||
i2c_acquire(dev->i2c);
|
i2c_acquire(BUS);
|
||||||
status = i2c_write_regs(dev->i2c, dev->addr, TMP006_CONFIG, reg, 2);
|
if (i2c_write_regs(BUS, ADDR, TMP006_REGS_CONFIG, reg, 2) != 2) {
|
||||||
if (status != 2) {
|
i2c_release(BUS);
|
||||||
i2c_release(dev->i2c);
|
return -TMP006_ERROR_BUS;
|
||||||
return -1;
|
|
||||||
}
|
}
|
||||||
i2c_release(dev->i2c);
|
i2c_release(BUS);
|
||||||
return 0;
|
return TMP006_OK;
|
||||||
}
|
}
|
||||||
|
|
||||||
int tmp006_set_active(tmp006_t *dev)
|
int tmp006_set_active(tmp006_t *dev)
|
||||||
{
|
{
|
||||||
int status;
|
|
||||||
uint8_t reg[2];
|
uint8_t reg[2];
|
||||||
|
|
||||||
if (dev->initialized == false) {
|
i2c_acquire(BUS);
|
||||||
return -1;
|
if (i2c_read_regs(BUS, ADDR, TMP006_REGS_CONFIG, reg, 2) != 2) {
|
||||||
}
|
i2c_release(BUS);
|
||||||
|
return -TMP006_ERROR_BUS;
|
||||||
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;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
reg[0] |= (TMP006_CONFIG_MOD(TMP006_CONFIG_MOD_CC) >> 8);
|
reg[0] |= (TMP006_CONFIG_MOD(TMP006_CONFIG_MOD_CC) >> 8);
|
||||||
|
if (i2c_write_regs(BUS, ADDR, TMP006_REGS_CONFIG, reg, 2) != 2) {
|
||||||
status = i2c_write_regs(dev->i2c, dev->addr, TMP006_CONFIG, reg, 2);
|
i2c_release(BUS);
|
||||||
if (status != 2) {
|
return -TMP006_ERROR_BUS;
|
||||||
i2c_release(dev->i2c);
|
|
||||||
return -1;
|
|
||||||
}
|
}
|
||||||
i2c_release(dev->i2c);
|
i2c_release(BUS);
|
||||||
return 0;
|
return TMP006_OK;
|
||||||
}
|
}
|
||||||
|
|
||||||
int tmp006_set_standby(tmp006_t *dev)
|
int tmp006_set_standby(tmp006_t *dev)
|
||||||
{
|
{
|
||||||
int status;
|
|
||||||
uint8_t reg[2];
|
uint8_t reg[2];
|
||||||
|
|
||||||
i2c_acquire(dev->i2c);
|
i2c_acquire(BUS);
|
||||||
status = i2c_read_regs(dev->i2c, dev->addr, TMP006_CONFIG, reg, 2);
|
if (i2c_read_regs(BUS, ADDR, TMP006_REGS_CONFIG, reg, 2) != 2) {
|
||||||
if (status != 2) {
|
i2c_release(BUS);
|
||||||
i2c_release(dev->i2c);
|
return -TMP006_ERROR_BUS;
|
||||||
return -1;
|
|
||||||
}
|
}
|
||||||
i2c_release(dev->i2c);
|
|
||||||
|
|
||||||
reg[0] &= ~(TMP006_CONFIG_MOD(TMP006_CONFIG_MOD_CC) >> 8);
|
reg[0] &= ~(TMP006_CONFIG_MOD(TMP006_CONFIG_MOD_CC) >> 8);
|
||||||
|
if (i2c_write_regs(BUS, ADDR, TMP006_REGS_CONFIG, reg, 2) != 2) {
|
||||||
i2c_acquire(dev->i2c);
|
i2c_release(BUS);
|
||||||
status = i2c_write_regs(dev->i2c, dev->addr, TMP006_CONFIG, reg, 2);
|
return -TMP006_ERROR_BUS;
|
||||||
if (status != 2) {
|
|
||||||
i2c_release(dev->i2c);
|
|
||||||
return -1;
|
|
||||||
}
|
}
|
||||||
i2c_release(dev->i2c);
|
i2c_release(BUS);
|
||||||
return 0;
|
return TMP006_OK;
|
||||||
}
|
}
|
||||||
|
|
||||||
int tmp006_read(tmp006_t *dev, int16_t *rawv, int16_t *rawt, uint8_t *drdy)
|
int tmp006_read(tmp006_t *dev, int16_t *rawv, int16_t *rawt, uint8_t *drdy)
|
||||||
{
|
{
|
||||||
int status;
|
uint8_t reg[2];
|
||||||
uint8_t buf[2];
|
|
||||||
|
|
||||||
if (dev->initialized == false) {
|
i2c_acquire(BUS);
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
i2c_acquire(dev->i2c);
|
|
||||||
/* Register bytes are sent MSB first. */
|
/* Register bytes are sent MSB first. */
|
||||||
status = i2c_read_regs(dev->i2c, dev->addr, TMP006_CONFIG, buf, 2);
|
if (i2c_read_regs(BUS, ADDR, TMP006_REGS_CONFIG, reg, 2) != 2) {
|
||||||
if (status != 2) {
|
i2c_release(BUS);
|
||||||
i2c_release(dev->i2c);
|
return -TMP006_ERROR_BUS;
|
||||||
return -1;
|
|
||||||
}
|
}
|
||||||
i2c_release(dev->i2c);
|
i2c_release(BUS);
|
||||||
|
|
||||||
*drdy = buf[1] & (TMP006_CONFIG_DRDY);
|
|
||||||
|
|
||||||
|
*drdy = reg[1] & (TMP006_CONFIG_DRDY);
|
||||||
if (!(*drdy)) {
|
if (!(*drdy)) {
|
||||||
/* conversion in progress */
|
LOG_DEBUG("tmp006_read: conversion in progress!\n");
|
||||||
return -1;
|
return -TMP006_ERROR;
|
||||||
}
|
}
|
||||||
|
|
||||||
i2c_acquire(dev->i2c);
|
i2c_acquire(BUS);
|
||||||
status = i2c_read_regs(dev->i2c, dev->addr, TMP006_V_OBJECT, buf, 2);
|
if (i2c_read_regs(BUS, ADDR, TMP006_REGS_V_OBJECT, reg, 2) != 2) {
|
||||||
if (status != 2) {
|
i2c_release(BUS);
|
||||||
i2c_release(dev->i2c);
|
return -TMP006_ERROR_BUS;
|
||||||
return -1;
|
|
||||||
}
|
}
|
||||||
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);
|
i2c_acquire(BUS);
|
||||||
status = i2c_read_regs(dev->i2c, dev->addr, TMP006_T_AMBIENT, buf, 2);
|
if (i2c_read_regs(BUS, ADDR, TMP006_REGS_T_AMBIENT, reg, 2) != 2) {
|
||||||
if (status != 2) {
|
i2c_release(BUS);
|
||||||
i2c_release(dev->i2c);
|
return -TMP006_ERROR_BUS;
|
||||||
return -1;
|
|
||||||
}
|
}
|
||||||
i2c_release(dev->i2c);
|
i2c_release(BUS);
|
||||||
*rawt = ((uint16_t)buf[0] << 8) | buf[1];
|
*rawt = ((uint16_t)reg[0] << 8) | reg[1];
|
||||||
return 0;
|
return TMP006_OK;
|
||||||
}
|
}
|
||||||
|
|
||||||
void tmp006_convert(int16_t rawv, int16_t rawt, float *tamb, float *tobj)
|
void tmp006_convert(int16_t rawv, int16_t rawt, float *tamb, float *tobj)
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user