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Updated license and formatting
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Bosch Sensortec
Kevin Goveas
parent
42acb85785
commit
d77d5a34f3
55
LICENSE
55
LICENSE
@ -1,39 +1,30 @@
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Copyright (C) 2016 - 2017 Bosch Sensortec GmbH
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Copyright (c) 2020 Bosch Sensortec GmbH. All rights reserved.
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BSD-3-Clause
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|
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Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are met:
|
||||
|
||||
Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
1. Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in the
|
||||
documentation and/or other materials provided with the distribution.
|
||||
2. Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in the
|
||||
documentation and/or other materials provided with the distribution.
|
||||
|
||||
Neither the name of the copyright holder nor the names of the
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
3. Neither the name of the copyright holder nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
|
||||
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
|
||||
OR CONTRIBUTORS BE LIABLE FOR ANY
|
||||
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
||||
OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
|
||||
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
ANY WAY OUT OF THE USE OF THIS
|
||||
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
|
||||
|
||||
The information provided is believed to be accurate and reliable.
|
||||
The copyright holder assumes no responsibility
|
||||
for the consequences of use
|
||||
of such information nor for any infringement of patents or
|
||||
other rights of third parties which may result from its use.
|
||||
No license is granted by implication or otherwise under any patent or
|
||||
patent rights of the copyright holder.
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
||||
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
POSSIBILITY OF SUCH DAMAGE.
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13
README.md
13
README.md
@ -7,9 +7,9 @@ The sensor driver package includes bme280.c, bme280.h and bme280_defs.h files.
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## Version
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File | Version | Date
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--------------|---------|------------
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bme280.c | 3.3.7 | 26 Aug 2019
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bme280.h | 3.3.7 | 26 Aug 2019
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bme280_defs.h | 3.3.7 | 26 Aug 2019
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bme280.c | 3.4.1 | 10 Jan 2020
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bme280.h | 3.4.1 | 10 Jan 2020
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bme280_defs.h | 3.4.1 | 10 Jan 2020
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## Integration details
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* Integrate bme280.h, bme280_defs.h and bme280.c file in to the project.
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@ -103,6 +103,7 @@ int8_t stream_sensor_data_forced_mode(struct bme280_dev *dev)
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{
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int8_t rslt;
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uint8_t settings_sel;
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uint32_t req_delay;
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struct bme280_data comp_data;
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/* Recommended mode of operation: Indoor navigation */
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@ -114,13 +115,17 @@ int8_t stream_sensor_data_forced_mode(struct bme280_dev *dev)
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settings_sel = BME280_OSR_PRESS_SEL | BME280_OSR_TEMP_SEL | BME280_OSR_HUM_SEL | BME280_FILTER_SEL;
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rslt = bme280_set_sensor_settings(settings_sel, dev);
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/*Calculate the minimum delay required between consecutive measurement based upon the sensor enabled
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* and the oversampling configuration. */
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req_delay = bme280_cal_meas_delay(&dev->settings);
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printf("Temperature, Pressure, Humidity\r\n");
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/* Continuously stream sensor data */
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while (1) {
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rslt = bme280_set_sensor_mode(BME280_FORCED_MODE, dev);
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/* Wait for the measurement to complete and print data @25Hz */
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dev->delay_ms(40);
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dev->delay_ms(req_delay);
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rslt = bme280_get_sensor_data(BME280_ALL, &comp_data, dev);
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print_sensor_data(&comp_data);
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}
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227
bme280.c
227
bme280.c
@ -1,49 +1,40 @@
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/**\mainpage
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* Copyright (C) 2018 - 2019 Bosch Sensortec GmbH
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
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||||
* Neither the name of the copyright holder nor the names of the
|
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* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
|
||||
* OR CONTRIBUTORS BE LIABLE FOR ANY
|
||||
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
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* OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
|
||||
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
|
||||
*
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||||
* The information provided is believed to be accurate and reliable.
|
||||
* The copyright holder assumes no responsibility
|
||||
* for the consequences of use
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||||
* of such information nor for any infringement of patents or
|
||||
* other rights of third parties which may result from its use.
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* No license is granted by implication or otherwise under any patent or
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* patent rights of the copyright holder.
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*
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* File bme280.c
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* Date 26 Aug 2019
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* Version 3.3.7
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*
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*/
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/**
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* Copyright (c) 2020 Bosch Sensortec GmbH. All rights reserved.
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*
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* BSD-3-Clause
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*
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||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
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||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
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||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
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||||
*
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* 3. Neither the name of the copyright holder nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
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||||
*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* @file bme280.c
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* @date 10/01/2020
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* @version 3.4.1
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*
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*/
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/*! @file bme280.c
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* @brief Sensor driver for BME280 sensor
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@ -731,9 +722,9 @@ void bme280_parse_sensor_data(const uint8_t *reg_data, struct bme280_uncomp_data
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data_xlsb = (uint32_t)reg_data[5] >> 4;
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uncomp_data->temperature = data_msb | data_lsb | data_xlsb;
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/* Store the parsed register values for temperature data */
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data_lsb = (uint32_t)reg_data[6] << 8;
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data_msb = (uint32_t)reg_data[7];
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/* Store the parsed register values for humidity data */
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data_msb = (uint32_t)reg_data[6] << 8;
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data_lsb = (uint32_t)reg_data[7];
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uncomp_data->humidity = data_msb | data_lsb;
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}
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@ -781,6 +772,56 @@ int8_t bme280_compensate_data(uint8_t sensor_comp,
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return rslt;
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}
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/*!
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* @brief This API is used to calculate the maximum delay in milliseconds required for the
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* temperature/pressure/humidity(which ever at enabled) measurement to complete.
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*/
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uint32_t bme280_cal_meas_delay(const struct bme280_settings *settings)
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{
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uint32_t max_delay;
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uint8_t temp_osr;
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uint8_t pres_osr;
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uint8_t hum_osr;
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/*Array to map OSR config register value to actual OSR */
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uint8_t osr_sett_to_act_osr[] = { 0, 1, 2, 4, 8, 16 };
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/* Mapping osr settings to the actual osr values e.g. 0b101 -> osr X16 */
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if (settings->osr_t <= 5)
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{
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temp_osr = osr_sett_to_act_osr[settings->osr_t];
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}
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else
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{
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temp_osr = 16;
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}
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if (settings->osr_p <= 5)
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{
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pres_osr = osr_sett_to_act_osr[settings->osr_p];
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}
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else
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{
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pres_osr = 16;
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}
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if (settings->osr_h <= 5)
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{
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hum_osr = osr_sett_to_act_osr[settings->osr_h];
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}
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else
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{
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hum_osr = 16;
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}
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max_delay =
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(uint32_t)((BME280_MEAS_OFFSET + (BME280_MEAS_DUR * temp_osr) +
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((BME280_MEAS_DUR * pres_osr) + BME280_PRES_HUM_MEAS_OFFSET) +
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((BME280_MEAS_DUR * hum_osr) + BME280_PRES_HUM_MEAS_OFFSET)) / BME280_MEAS_SCALING_FACTOR);
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return max_delay;
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}
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/*!
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* @brief This internal API sets the oversampling settings for pressure,
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* temperature and humidity in the sensor.
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@ -1143,10 +1184,10 @@ static int32_t compensate_temperature(const struct bme280_uncomp_data *uncomp_da
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int32_t temperature_min = -4000;
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int32_t temperature_max = 8500;
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var1 = (int32_t)((uncomp_data->temperature / 8) - ((int32_t)calib_data->dig_T1 * 2));
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var1 = (var1 * ((int32_t)calib_data->dig_T2)) / 2048;
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var2 = (int32_t)((uncomp_data->temperature / 16) - ((int32_t)calib_data->dig_T1));
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var2 = (((var2 * var2) / 4096) * ((int32_t)calib_data->dig_T3)) / 16384;
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var1 = (int32_t)((uncomp_data->temperature / 8) - ((int32_t)calib_data->dig_t1 * 2));
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var1 = (var1 * ((int32_t)calib_data->dig_t2)) / 2048;
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var2 = (int32_t)((uncomp_data->temperature / 16) - ((int32_t)calib_data->dig_t1));
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var2 = (((var2 * var2) / 4096) * ((int32_t)calib_data->dig_t3)) / 16384;
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calib_data->t_fine = var1 + var2;
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temperature = (calib_data->t_fine * 5 + 128) / 256;
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if (temperature < temperature_min)
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@ -1179,21 +1220,21 @@ static uint32_t compensate_pressure(const struct bme280_uncomp_data *uncomp_data
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uint32_t pressure_max = 11000000;
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var1 = ((int64_t)calib_data->t_fine) - 128000;
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var2 = var1 * var1 * (int64_t)calib_data->dig_P6;
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var2 = var2 + ((var1 * (int64_t)calib_data->dig_P5) * 131072);
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var2 = var2 + (((int64_t)calib_data->dig_P4) * 34359738368);
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var1 = ((var1 * var1 * (int64_t)calib_data->dig_P3) / 256) + ((var1 * ((int64_t)calib_data->dig_P2) * 4096));
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var2 = var1 * var1 * (int64_t)calib_data->dig_p6;
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var2 = var2 + ((var1 * (int64_t)calib_data->dig_p5) * 131072);
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var2 = var2 + (((int64_t)calib_data->dig_p4) * 34359738368);
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var1 = ((var1 * var1 * (int64_t)calib_data->dig_p3) / 256) + ((var1 * ((int64_t)calib_data->dig_p2) * 4096));
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var3 = ((int64_t)1) * 140737488355328;
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var1 = (var3 + var1) * ((int64_t)calib_data->dig_P1) / 8589934592;
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var1 = (var3 + var1) * ((int64_t)calib_data->dig_p1) / 8589934592;
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/* To avoid divide by zero exception */
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if (var1 != 0)
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{
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var4 = 1048576 - uncomp_data->pressure;
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var4 = (((var4 * INT64_C(2147483648)) - var2) * 3125) / var1;
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var1 = (((int64_t)calib_data->dig_P9) * (var4 / 8192) * (var4 / 8192)) / 33554432;
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var2 = (((int64_t)calib_data->dig_P8) * var4) / 524288;
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var4 = ((var4 + var1 + var2) / 256) + (((int64_t)calib_data->dig_P7) * 16);
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var1 = (((int64_t)calib_data->dig_p9) * (var4 / 8192) * (var4 / 8192)) / 33554432;
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var2 = (((int64_t)calib_data->dig_p8) * var4) / 524288;
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var4 = ((var4 + var1 + var2) / 256) + (((int64_t)calib_data->dig_p7) * 16);
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pressure = (uint32_t)(((var4 / 2) * 100) / 128);
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if (pressure < pressure_min)
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{
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@ -1289,16 +1330,16 @@ static uint32_t compensate_humidity(const struct bme280_uncomp_data *uncomp_data
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var1 = calib_data->t_fine - ((int32_t)76800);
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var2 = (int32_t)(uncomp_data->humidity * 16384);
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var3 = (int32_t)(((int32_t)calib_data->dig_H4) * 1048576);
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var4 = ((int32_t)calib_data->dig_H5) * var1;
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var3 = (int32_t)(((int32_t)calib_data->dig_h4) * 1048576);
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var4 = ((int32_t)calib_data->dig_h5) * var1;
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var5 = (((var2 - var3) - var4) + (int32_t)16384) / 32768;
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var2 = (var1 * ((int32_t)calib_data->dig_H6)) / 1024;
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var3 = (var1 * ((int32_t)calib_data->dig_H3)) / 2048;
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var2 = (var1 * ((int32_t)calib_data->dig_h6)) / 1024;
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var3 = (var1 * ((int32_t)calib_data->dig_h3)) / 2048;
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var4 = ((var2 * (var3 + (int32_t)32768)) / 1024) + (int32_t)2097152;
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var2 = ((var4 * ((int32_t)calib_data->dig_H2)) + 8192) / 16384;
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var2 = ((var4 * ((int32_t)calib_data->dig_h2)) + 8192) / 16384;
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var3 = var5 * var2;
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var4 = ((var3 / 32768) * (var3 / 32768)) / 128;
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var5 = var3 - ((var4 * ((int32_t)calib_data->dig_H1)) / 16);
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var5 = var3 - ((var4 * ((int32_t)calib_data->dig_h1)) / 16);
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var5 = (var5 < 0 ? 0 : var5);
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var5 = (var5 > 419430400 ? 419430400 : var5);
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humidity = (uint32_t)(var5 / 4096);
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@ -1370,19 +1411,19 @@ static void parse_temp_press_calib_data(const uint8_t *reg_data, struct bme280_d
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{
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struct bme280_calib_data *calib_data = &dev->calib_data;
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calib_data->dig_T1 = BME280_CONCAT_BYTES(reg_data[1], reg_data[0]);
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calib_data->dig_T2 = (int16_t)BME280_CONCAT_BYTES(reg_data[3], reg_data[2]);
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calib_data->dig_T3 = (int16_t)BME280_CONCAT_BYTES(reg_data[5], reg_data[4]);
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calib_data->dig_P1 = BME280_CONCAT_BYTES(reg_data[7], reg_data[6]);
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calib_data->dig_P2 = (int16_t)BME280_CONCAT_BYTES(reg_data[9], reg_data[8]);
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calib_data->dig_P3 = (int16_t)BME280_CONCAT_BYTES(reg_data[11], reg_data[10]);
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calib_data->dig_P4 = (int16_t)BME280_CONCAT_BYTES(reg_data[13], reg_data[12]);
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calib_data->dig_P5 = (int16_t)BME280_CONCAT_BYTES(reg_data[15], reg_data[14]);
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calib_data->dig_P6 = (int16_t)BME280_CONCAT_BYTES(reg_data[17], reg_data[16]);
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calib_data->dig_P7 = (int16_t)BME280_CONCAT_BYTES(reg_data[19], reg_data[18]);
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calib_data->dig_P8 = (int16_t)BME280_CONCAT_BYTES(reg_data[21], reg_data[20]);
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calib_data->dig_P9 = (int16_t)BME280_CONCAT_BYTES(reg_data[23], reg_data[22]);
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calib_data->dig_H1 = reg_data[25];
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calib_data->dig_t1 = BME280_CONCAT_BYTES(reg_data[1], reg_data[0]);
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calib_data->dig_t2 = (int16_t)BME280_CONCAT_BYTES(reg_data[3], reg_data[2]);
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calib_data->dig_t3 = (int16_t)BME280_CONCAT_BYTES(reg_data[5], reg_data[4]);
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calib_data->dig_p1 = BME280_CONCAT_BYTES(reg_data[7], reg_data[6]);
|
||||
calib_data->dig_p2 = (int16_t)BME280_CONCAT_BYTES(reg_data[9], reg_data[8]);
|
||||
calib_data->dig_p3 = (int16_t)BME280_CONCAT_BYTES(reg_data[11], reg_data[10]);
|
||||
calib_data->dig_p4 = (int16_t)BME280_CONCAT_BYTES(reg_data[13], reg_data[12]);
|
||||
calib_data->dig_p5 = (int16_t)BME280_CONCAT_BYTES(reg_data[15], reg_data[14]);
|
||||
calib_data->dig_p6 = (int16_t)BME280_CONCAT_BYTES(reg_data[17], reg_data[16]);
|
||||
calib_data->dig_p7 = (int16_t)BME280_CONCAT_BYTES(reg_data[19], reg_data[18]);
|
||||
calib_data->dig_p8 = (int16_t)BME280_CONCAT_BYTES(reg_data[21], reg_data[20]);
|
||||
calib_data->dig_p9 = (int16_t)BME280_CONCAT_BYTES(reg_data[23], reg_data[22]);
|
||||
calib_data->dig_h1 = reg_data[25];
|
||||
}
|
||||
|
||||
/*!
|
||||
@ -1392,20 +1433,20 @@ static void parse_temp_press_calib_data(const uint8_t *reg_data, struct bme280_d
|
||||
static void parse_humidity_calib_data(const uint8_t *reg_data, struct bme280_dev *dev)
|
||||
{
|
||||
struct bme280_calib_data *calib_data = &dev->calib_data;
|
||||
int16_t dig_H4_lsb;
|
||||
int16_t dig_H4_msb;
|
||||
int16_t dig_H5_lsb;
|
||||
int16_t dig_H5_msb;
|
||||
int16_t dig_h4_lsb;
|
||||
int16_t dig_h4_msb;
|
||||
int16_t dig_h5_lsb;
|
||||
int16_t dig_h5_msb;
|
||||
|
||||
calib_data->dig_H2 = (int16_t)BME280_CONCAT_BYTES(reg_data[1], reg_data[0]);
|
||||
calib_data->dig_H3 = reg_data[2];
|
||||
dig_H4_msb = (int16_t)(int8_t)reg_data[3] * 16;
|
||||
dig_H4_lsb = (int16_t)(reg_data[4] & 0x0F);
|
||||
calib_data->dig_H4 = dig_H4_msb | dig_H4_lsb;
|
||||
dig_H5_msb = (int16_t)(int8_t)reg_data[5] * 16;
|
||||
dig_H5_lsb = (int16_t)(reg_data[4] >> 4);
|
||||
calib_data->dig_H5 = dig_H5_msb | dig_H5_lsb;
|
||||
calib_data->dig_H6 = (int8_t)reg_data[6];
|
||||
calib_data->dig_h2 = (int16_t)BME280_CONCAT_BYTES(reg_data[1], reg_data[0]);
|
||||
calib_data->dig_h3 = reg_data[2];
|
||||
dig_h4_msb = (int16_t)(int8_t)reg_data[3] * 16;
|
||||
dig_h4_lsb = (int16_t)(reg_data[4] & 0x0F);
|
||||
calib_data->dig_h4 = dig_h4_msb | dig_h4_lsb;
|
||||
dig_h5_msb = (int16_t)(int8_t)reg_data[5] * 16;
|
||||
dig_h5_lsb = (int16_t)(reg_data[4] >> 4);
|
||||
calib_data->dig_h5 = dig_h5_msb | dig_h5_lsb;
|
||||
calib_data->dig_h6 = (int8_t)reg_data[6];
|
||||
}
|
||||
|
||||
/*!
|
||||
|
||||
94
bme280.h
94
bme280.h
@ -1,50 +1,40 @@
|
||||
/**
|
||||
* Copyright (C) 2018 - 2019 Bosch Sensortec GmbH
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* Neither the name of the copyright holder nor the names of the
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
|
||||
* OR CONTRIBUTORS BE LIABLE FOR ANY
|
||||
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
||||
* OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
|
||||
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
|
||||
*
|
||||
* The information provided is believed to be accurate and reliable.
|
||||
* The copyright holder assumes no responsibility
|
||||
* for the consequences of use
|
||||
* of such information nor for any infringement of patents or
|
||||
* other rights of third parties which may result from its use.
|
||||
* No license is granted by implication or otherwise under any patent or
|
||||
* patent rights of the copyright holder.
|
||||
*
|
||||
* @file bme280.h
|
||||
* @date 26 Aug 2019
|
||||
* @version 3.3.7
|
||||
* @brief
|
||||
*
|
||||
*/
|
||||
* Copyright (c) 2020 Bosch Sensortec GmbH. All rights reserved.
|
||||
*
|
||||
* BSD-3-Clause
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* 3. Neither the name of the copyright holder nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
||||
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* @file bme280.h
|
||||
* @date 10/01/2020
|
||||
* @version 3.4.1
|
||||
*
|
||||
*/
|
||||
|
||||
/*! @file bme280.h
|
||||
* @brief Sensor driver for BME280 sensor
|
||||
@ -237,6 +227,18 @@ int8_t bme280_compensate_data(uint8_t sensor_comp,
|
||||
struct bme280_data *comp_data,
|
||||
struct bme280_calib_data *calib_data);
|
||||
|
||||
/*!
|
||||
* @brief This API is used to calculate the maximum delay in milliseconds required for the
|
||||
* temperature/pressure/humidity(which ever are enabled) measurement to complete.
|
||||
* The delay depends upon the number of sensors enabled and their oversampling configuration.
|
||||
*
|
||||
* @param[in] settings : contains the oversampling configurations.
|
||||
*
|
||||
* @return delay required in milliseconds.
|
||||
*/
|
||||
|
||||
uint32_t bme280_cal_meas_delay(const struct bme280_settings *settings);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* End of CPP guard */
|
||||
|
||||
124
bme280_defs.h
124
bme280_defs.h
@ -1,50 +1,40 @@
|
||||
/**
|
||||
* Copyright (C) 2018 - 2019 Bosch Sensortec GmbH
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* Neither the name of the copyright holder nor the names of the
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
|
||||
* OR CONTRIBUTORS BE LIABLE FOR ANY
|
||||
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
||||
* OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
|
||||
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
|
||||
*
|
||||
* The information provided is believed to be accurate and reliable.
|
||||
* The copyright holder assumes no responsibility
|
||||
* for the consequences of use
|
||||
* of such information nor for any infringement of patents or
|
||||
* other rights of third parties which may result from its use.
|
||||
* No license is granted by implication or otherwise under any patent or
|
||||
* patent rights of the copyright holder.
|
||||
*
|
||||
* @file bme280_defs.h
|
||||
* @date 26 Aug 2019
|
||||
* @version 3.3.7
|
||||
* @brief
|
||||
*
|
||||
*/
|
||||
* Copyright (c) 2020 Bosch Sensortec GmbH. All rights reserved.
|
||||
*
|
||||
* BSD-3-Clause
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* 3. Neither the name of the copyright holder nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
||||
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* @file bme280_defs.h
|
||||
* @date 10/01/2020
|
||||
* @version 3.4.1
|
||||
*
|
||||
*/
|
||||
|
||||
/*! @file bme280_defs.h
|
||||
* @brief Sensor driver for BME280 sensor
|
||||
@ -221,6 +211,12 @@
|
||||
#define BME280_OVERSAMPLING_8X UINT8_C(0x04)
|
||||
#define BME280_OVERSAMPLING_16X UINT8_C(0x05)
|
||||
|
||||
/**\name Measurement delay calculation macros */
|
||||
#define BME280_MEAS_OFFSET UINT16_C(1250)
|
||||
#define BME280_MEAS_DUR UINT16_C(2300)
|
||||
#define BME280_PRES_HUM_MEAS_OFFSET UINT16_C(575)
|
||||
#define BME280_MEAS_SCALING_FACTOR UINT16_C(1000)
|
||||
|
||||
/**\name Standby duration selection macros */
|
||||
#define BME280_STANDBY_TIME_0_5_MS (0x00)
|
||||
#define BME280_STANDBY_TIME_62_5_MS (0x01)
|
||||
@ -269,24 +265,24 @@ struct bme280_calib_data
|
||||
*/
|
||||
|
||||
/**@{*/
|
||||
uint16_t dig_T1;
|
||||
int16_t dig_T2;
|
||||
int16_t dig_T3;
|
||||
uint16_t dig_P1;
|
||||
int16_t dig_P2;
|
||||
int16_t dig_P3;
|
||||
int16_t dig_P4;
|
||||
int16_t dig_P5;
|
||||
int16_t dig_P6;
|
||||
int16_t dig_P7;
|
||||
int16_t dig_P8;
|
||||
int16_t dig_P9;
|
||||
uint8_t dig_H1;
|
||||
int16_t dig_H2;
|
||||
uint8_t dig_H3;
|
||||
int16_t dig_H4;
|
||||
int16_t dig_H5;
|
||||
int8_t dig_H6;
|
||||
uint16_t dig_t1;
|
||||
int16_t dig_t2;
|
||||
int16_t dig_t3;
|
||||
uint16_t dig_p1;
|
||||
int16_t dig_p2;
|
||||
int16_t dig_p3;
|
||||
int16_t dig_p4;
|
||||
int16_t dig_p5;
|
||||
int16_t dig_p6;
|
||||
int16_t dig_p7;
|
||||
int16_t dig_p8;
|
||||
int16_t dig_p9;
|
||||
uint8_t dig_h1;
|
||||
int16_t dig_h2;
|
||||
uint8_t dig_h3;
|
||||
int16_t dig_h4;
|
||||
int16_t dig_h5;
|
||||
int8_t dig_h6;
|
||||
int32_t t_fine;
|
||||
|
||||
/**@}*/
|
||||
|
||||
@ -1,29 +1,208 @@
|
||||
/*
|
||||
* Linux userspace test code, simple and mose code directy from the doco.
|
||||
/**
|
||||
* Copyright (c) 2020 Bosch Sensortec GmbH. All rights reserved.
|
||||
*
|
||||
* BSD-3-Clause
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* 3. Neither the name of the copyright holder nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
||||
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* @file linux_userspace.c
|
||||
* @date 10/01/2020
|
||||
* @version
|
||||
*
|
||||
*/
|
||||
|
||||
/*!
|
||||
* @ingroup bme280GroupExample
|
||||
* @defgroup bme280GroupExample linux_userspace
|
||||
* @brief Linux userspace test code, simple and mose code directly from the doco.
|
||||
* compile like this: gcc linux_userspace.c ../bme280.c -I ../ -o bme280
|
||||
* tested: Raspberry Pi.
|
||||
* Use like: ./bme280 /dev/i2c-0
|
||||
* \include linux_userspace.c
|
||||
*/
|
||||
#include "bme280.h"
|
||||
#include <string.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#ifdef __KERNEL__
|
||||
#include <linux/i2c-dev.h>
|
||||
#include <sys/ioctl.h>
|
||||
#endif
|
||||
|
||||
/******************************************************************************/
|
||||
/*! System header files */
|
||||
#include <string.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
#include <sys/types.h>
|
||||
#include <fcntl.h>
|
||||
|
||||
/******************************************************************************/
|
||||
/*! Own header files */
|
||||
#include "bme280.h"
|
||||
|
||||
/*****************************************************************************/
|
||||
/*! Global variables */
|
||||
int fd;
|
||||
|
||||
int8_t user_i2c_read(uint8_t id, uint8_t reg_addr, uint8_t *data, uint16_t len);
|
||||
/****************************************************************************/
|
||||
/*! Functions */
|
||||
|
||||
/*!
|
||||
* @brief Function that creates a mandatory delay required in some of the APIs.
|
||||
*
|
||||
* @param[in] period : The required wait time in microseconds.
|
||||
* @return void.
|
||||
*
|
||||
*/
|
||||
void user_delay_ms(uint32_t period);
|
||||
int8_t user_i2c_write(uint8_t id, uint8_t reg_addr, uint8_t *data, uint16_t len);
|
||||
|
||||
/*!
|
||||
* @brief Function for print the temperature, humidity and pressure data.
|
||||
*
|
||||
* @param[out] comp_data : Structure instance of bme280_data
|
||||
*
|
||||
* @note Sensor data whose can be read
|
||||
*
|
||||
* sens_list
|
||||
* --------------
|
||||
* Pressure
|
||||
* Temperature
|
||||
* Humidity
|
||||
*
|
||||
*/
|
||||
void print_sensor_data(struct bme280_data *comp_data);
|
||||
|
||||
/*!
|
||||
* @brief Function for reading the sensor's registers through I2C bus.
|
||||
*
|
||||
* @param[in] id : Sensor I2C address.
|
||||
* @param[in] reg_addr : Register address.
|
||||
* @param[out] data : Pointer to the data buffer to store the read data.
|
||||
* @param[in] len : No of bytes to read.
|
||||
*
|
||||
* @return Status of execution
|
||||
*
|
||||
* @retval 0 -> Success
|
||||
* @retval > 0 -> Failure Info
|
||||
*
|
||||
*/
|
||||
int8_t user_i2c_read(uint8_t id, uint8_t reg_addr, uint8_t *data, uint16_t len);
|
||||
|
||||
/*!
|
||||
* @brief Function for writing the sensor's registers through I2C bus.
|
||||
*
|
||||
* @param[in] id : Sensor I2C address.
|
||||
* @param[in] reg_addr : Register address.
|
||||
* @param[in] data : Pointer to the data buffer whose value is to be written.
|
||||
* @param[in] len : No of bytes to write.
|
||||
*
|
||||
* @return Status of execution
|
||||
*
|
||||
* @retval BME280_OK -> Success
|
||||
* @retval BME280_E_COMM_FAIL -> Communication failure.
|
||||
*
|
||||
*/
|
||||
int8_t user_i2c_write(uint8_t id, uint8_t reg_addr, uint8_t *data, uint16_t len);
|
||||
|
||||
/*!
|
||||
* @brief Function reads temperature, humidity and pressure data in forced mode.
|
||||
*
|
||||
* @param[in] dev : Structure instance of bme280_dev.
|
||||
*
|
||||
* @return Result of API execution status
|
||||
*
|
||||
* @retval BME280_OK - Success.
|
||||
* @retval BME280_E_NULL_PTR - Error: Null pointer error
|
||||
* @retval BME280_E_COMM_FAIL - Error: Communication fail error
|
||||
* @retval BME280_E_NVM_COPY_FAILED - Error: NVM copy failed
|
||||
*
|
||||
*/
|
||||
int8_t stream_sensor_data_forced_mode(struct bme280_dev *dev);
|
||||
|
||||
/*!
|
||||
* @brief This function starts execution of the program.
|
||||
*/
|
||||
int main(int argc, char* argv[])
|
||||
{
|
||||
struct bme280_dev dev;
|
||||
|
||||
/* Variable to define the result */
|
||||
int8_t rslt = BME280_OK;
|
||||
|
||||
if (argc < 2)
|
||||
{
|
||||
fprintf(stderr, "Missing argument for i2c bus.\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* Make sure to select BME280_I2C_ADDR_PRIM or BME280_I2C_ADDR_SEC as needed */
|
||||
dev.dev_id = BME280_I2C_ADDR_PRIM;
|
||||
|
||||
/* dev.dev_id = BME280_I2C_ADDR_SEC; */
|
||||
dev.intf = BME280_I2C_INTF;
|
||||
dev.read = user_i2c_read;
|
||||
dev.write = user_i2c_write;
|
||||
dev.delay_ms = user_delay_ms;
|
||||
|
||||
if ((fd = open(argv[1], O_RDWR)) < 0)
|
||||
{
|
||||
fprintf(stderr, "Failed to open the i2c bus %s\n", argv[1]);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
#ifdef __KERNEL__
|
||||
if (ioctl(fd, I2C_SLAVE, dev.dev_id) < 0)
|
||||
{
|
||||
fprintf(stderr, "Failed to acquire bus access and/or talk to slave.\n");
|
||||
exit(1);
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Initialize the bme280 */
|
||||
rslt = bme280_init(&dev);
|
||||
if (rslt != BME280_OK)
|
||||
{
|
||||
fprintf(stderr, "Failed to initialize the device (code %+d).\n", rslt);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
rslt = stream_sensor_data_forced_mode(&dev);
|
||||
if (rslt != BME280_OK)
|
||||
{
|
||||
fprintf(stderr, "Failed to stream sensor data (code %+d).\n", rslt);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*!
|
||||
* @brief This function reading the sensor's registers through I2C bus.
|
||||
*/
|
||||
int8_t user_i2c_read(uint8_t id, uint8_t reg_addr, uint8_t *data, uint16_t len)
|
||||
{
|
||||
write(fd, ®_addr, 1);
|
||||
@ -32,11 +211,19 @@ int8_t user_i2c_read(uint8_t id, uint8_t reg_addr, uint8_t *data, uint16_t len)
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*!
|
||||
* @brief This function provides the delay for required time (Microseconds) as per the input provided in some of the
|
||||
* APIs
|
||||
*/
|
||||
void user_delay_ms(uint32_t period)
|
||||
{
|
||||
/* Milliseconds convert to microseconds */
|
||||
usleep(period * 1000);
|
||||
}
|
||||
|
||||
/*!
|
||||
* @brief This function for writing the sensor's registers through I2C bus.
|
||||
*/
|
||||
int8_t user_i2c_write(uint8_t id, uint8_t reg_addr, uint8_t *data, uint16_t len)
|
||||
{
|
||||
int8_t *buf;
|
||||
@ -45,14 +232,22 @@ int8_t user_i2c_write(uint8_t id, uint8_t reg_addr, uint8_t *data, uint16_t len)
|
||||
buf[0] = reg_addr;
|
||||
memcpy(buf + 1, data, len);
|
||||
if (write(fd, buf, len + 1) < len)
|
||||
{
|
||||
return BME280_E_COMM_FAIL;
|
||||
}
|
||||
|
||||
free(buf);
|
||||
return BME280_OK;
|
||||
|
||||
return BME280_OK;
|
||||
}
|
||||
|
||||
/*!
|
||||
* @brief This API used to print the sensor temperature, pressure and humidity data.
|
||||
*/
|
||||
void print_sensor_data(struct bme280_data *comp_data)
|
||||
{
|
||||
float temp, press, hum;
|
||||
|
||||
#ifdef BME280_FLOAT_ENABLE
|
||||
temp = comp_data->temperature;
|
||||
press = 0.01 * comp_data->pressure;
|
||||
@ -71,10 +266,21 @@ void print_sensor_data(struct bme280_data *comp_data)
|
||||
printf("%0.2lf deg C, %0.2lf hPa, %0.2lf%%\n", temp, press, hum);
|
||||
}
|
||||
|
||||
/*!
|
||||
* @brief This API reads the sensor temperature, pressure and humidity data in forced mode.
|
||||
*/
|
||||
int8_t stream_sensor_data_forced_mode(struct bme280_dev *dev)
|
||||
{
|
||||
int8_t rslt;
|
||||
uint8_t settings_sel;
|
||||
/* Variable to define the result */
|
||||
int8_t rslt = BME280_OK;
|
||||
|
||||
/* Variable to define the selecting sensors */
|
||||
uint8_t settings_sel = 0;
|
||||
|
||||
/* Variable to store minimum wait time between consecutive measurement in force mode */
|
||||
uint32_t req_delay;
|
||||
|
||||
/* Structure to get the pressure, temperature and humidity values */
|
||||
struct bme280_data comp_data;
|
||||
|
||||
/* Recommended mode of operation: Indoor navigation */
|
||||
@ -85,87 +291,43 @@ int8_t stream_sensor_data_forced_mode(struct bme280_dev *dev)
|
||||
|
||||
settings_sel = BME280_OSR_PRESS_SEL | BME280_OSR_TEMP_SEL | BME280_OSR_HUM_SEL | BME280_FILTER_SEL;
|
||||
|
||||
/* Set the sensor settings */
|
||||
rslt = bme280_set_sensor_settings(settings_sel, dev);
|
||||
if (rslt != BME280_OK)
|
||||
{
|
||||
fprintf(stderr, "Failed to set sensor settings (code %+d).", rslt);
|
||||
return rslt;
|
||||
}
|
||||
if (rslt != BME280_OK)
|
||||
{
|
||||
fprintf(stderr, "Failed to set sensor settings (code %+d).", rslt);
|
||||
|
||||
return rslt;
|
||||
}
|
||||
|
||||
printf("Temperature, Pressure, Humidity\n");
|
||||
|
||||
/*Calculate the minimum delay required between consecutive measurement based upon the sensor enabled
|
||||
* and the oversampling configuration. */
|
||||
req_delay = bme280_cal_meas_delay(&dev->settings);
|
||||
|
||||
/* Continuously stream sensor data */
|
||||
while (1)
|
||||
{
|
||||
/* Set the sensor to forced mode */
|
||||
rslt = bme280_set_sensor_mode(BME280_FORCED_MODE, dev);
|
||||
if (rslt != BME280_OK)
|
||||
{
|
||||
fprintf(stderr, "Failed to set sensor mode (code %+d).", rslt);
|
||||
break;
|
||||
}
|
||||
/* Wait for the measurement to complete and print data @25Hz */
|
||||
dev->delay_ms(40);
|
||||
|
||||
/* Wait for the measurement to complete and print data */
|
||||
dev->delay_ms(req_delay);
|
||||
rslt = bme280_get_sensor_data(BME280_ALL, &comp_data, dev);
|
||||
if (rslt != BME280_OK)
|
||||
{
|
||||
fprintf(stderr, "Failed to get sensor data (code %+d).", rslt);
|
||||
break;
|
||||
}
|
||||
|
||||
print_sensor_data(&comp_data);
|
||||
}
|
||||
|
||||
return rslt;
|
||||
}
|
||||
|
||||
int main(int argc, char* argv[])
|
||||
{
|
||||
struct bme280_dev dev;
|
||||
int8_t rslt = BME280_OK;
|
||||
|
||||
if (argc < 2)
|
||||
{
|
||||
fprintf(stderr, "Missing argument for i2c bus.\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
// make sure to select BME280_I2C_ADDR_PRIM
|
||||
// or BME280_I2C_ADDR_SEC as needed
|
||||
dev.dev_id =
|
||||
#if 1
|
||||
BME280_I2C_ADDR_PRIM
|
||||
#else
|
||||
BME280_I2C_ADDR_SEC
|
||||
#endif
|
||||
;
|
||||
|
||||
dev.intf = BME280_I2C_INTF;
|
||||
dev.read = user_i2c_read;
|
||||
dev.write = user_i2c_write;
|
||||
dev.delay_ms = user_delay_ms;
|
||||
|
||||
if ((fd = open(argv[1], O_RDWR)) < 0)
|
||||
{
|
||||
fprintf(stderr, "Failed to open the i2c bus %s\n", argv[1]);
|
||||
exit(1);
|
||||
}
|
||||
#ifdef __KERNEL__
|
||||
if (ioctl(fd, I2C_SLAVE, dev.dev_id) < 0)
|
||||
{
|
||||
fprintf(stderr, "Failed to acquire bus access and/or talk to slave.\n");
|
||||
exit(1);
|
||||
}
|
||||
#endif
|
||||
|
||||
rslt = bme280_init(&dev);
|
||||
if (rslt != BME280_OK)
|
||||
{
|
||||
fprintf(stderr, "Failed to initialize the device (code %+d).\n", rslt);
|
||||
exit(1);
|
||||
}
|
||||
rslt = stream_sensor_data_forced_mode(&dev);
|
||||
if (rslt != BME280_OK)
|
||||
{
|
||||
fprintf(stderr, "Failed to stream sensor data (code %+d).\n", rslt);
|
||||
exit(1);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -1,49 +1,40 @@
|
||||
/**\mainpage
|
||||
* Copyright (C) 2018 - 2019 Bosch Sensortec GmbH
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* Neither the name of the copyright holder nor the names of the
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
|
||||
* OR CONTRIBUTORS BE LIABLE FOR ANY
|
||||
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
||||
* OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
|
||||
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
|
||||
*
|
||||
* The information provided is believed to be accurate and reliable.
|
||||
* The copyright holder assumes no responsibility
|
||||
* for the consequences of use
|
||||
* of such information nor for any infringement of patents or
|
||||
* other rights of third parties which may result from its use.
|
||||
* No license is granted by implication or otherwise under any patent or
|
||||
* patent rights of the copyright holder.
|
||||
*
|
||||
* File bme280_selftest.c
|
||||
* Date 26 Aug 2019
|
||||
* Version 3.3.7
|
||||
*
|
||||
*/
|
||||
/**
|
||||
* Copyright (c) 2020 Bosch Sensortec GmbH. All rights reserved.
|
||||
*
|
||||
* BSD-3-Clause
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* 3. Neither the name of the copyright holder nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
||||
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* @file bme280_selftest.c
|
||||
* @date 10/01/2020
|
||||
* @version 3.4.1
|
||||
*
|
||||
*/
|
||||
|
||||
#include "bme280_selftest.h"
|
||||
|
||||
@ -73,7 +64,7 @@ static uint8_t crc_calculate(uint8_t *mem_values, uint8_t mem_length);
|
||||
* @return Result of API execution status
|
||||
* @retval zero -> self test success / +ve value -> warning(self test fail)
|
||||
*/
|
||||
int8_t bme280_crc_selftest(const struct bme280_dev *dev)
|
||||
int8_t bme280_selftest_crc(const struct bme280_dev *dev)
|
||||
{
|
||||
int8_t rslt;
|
||||
uint8_t reg_addr;
|
||||
@ -128,14 +119,14 @@ static uint8_t crc_calculate(uint8_t *mem_values, uint8_t mem_length)
|
||||
{
|
||||
uint32_t crc_reg = 0xFF;
|
||||
uint8_t polynomial = 0x1D;
|
||||
uint8_t bitNo, index;
|
||||
uint8_t bitno, index;
|
||||
uint8_t din = 0;
|
||||
|
||||
for (index = 0; index < mem_length; index++)
|
||||
{
|
||||
for (bitNo = 0; bitNo < 8; bitNo++)
|
||||
for (bitno = 0; bitno < 8; bitno++)
|
||||
{
|
||||
if (((crc_reg & 0x80) > 0) != ((mem_values[index] & 0x80) > 0))
|
||||
if ((crc_reg & 0x80) != (mem_values[index] & 0x80))
|
||||
{
|
||||
din = 1;
|
||||
}
|
||||
|
||||
@ -1,49 +1,40 @@
|
||||
/**\mainpage
|
||||
* Copyright (C) 2018 - 2019 Bosch Sensortec GmbH
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* Neither the name of the copyright holder nor the names of the
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
|
||||
* OR CONTRIBUTORS BE LIABLE FOR ANY
|
||||
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
||||
* OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
|
||||
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
|
||||
*
|
||||
* The information provided is believed to be accurate and reliable.
|
||||
* The copyright holder assumes no responsibility
|
||||
* for the consequences of use
|
||||
* of such information nor for any infringement of patents or
|
||||
* other rights of third parties which may result from its use.
|
||||
* No license is granted by implication or otherwise under any patent or
|
||||
* patent rights of the copyright holder.
|
||||
*
|
||||
* File bme280_selftest.h
|
||||
* Date 26 Aug 2019
|
||||
* Version 3.3.7
|
||||
*
|
||||
*/
|
||||
/**
|
||||
* Copyright (c) 2020 Bosch Sensortec GmbH. All rights reserved.
|
||||
*
|
||||
* BSD-3-Clause
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* 3. Neither the name of the copyright holder nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
||||
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* @file bme280_selftest.h
|
||||
* @date 10/01/2020
|
||||
* @version 3.4.1
|
||||
*
|
||||
*/
|
||||
|
||||
/*!
|
||||
* @addtogroup bme280_selftest
|
||||
@ -71,7 +62,7 @@ extern "C" {
|
||||
* @return Result of API execution status
|
||||
* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
|
||||
*/
|
||||
int8_t bme280_crc_selftest(const struct bme280_dev *dev);
|
||||
int8_t bme280_selftest_crc(const struct bme280_dev *dev);
|
||||
|
||||
/*! CPP guard */
|
||||
#ifdef __cplusplus
|
||||
|
||||
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Reference in New Issue
Block a user