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https://github.com/boschsensortec/BME280_SensorAPI.git
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Removed self-test
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Bosch Sensortec
Kevin Goveas
parent
56de40696f
commit
3d686a3265
@ -1,146 +0,0 @@
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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
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* 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
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* contributors may be used to endorse or promote products derived from
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* 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
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* 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_selftest.c
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* @date 2020-01-24
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* @version v3.4.3
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*
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*/
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#include "bme280_selftest.h"
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#define BME280_CRC_DATA_ADDR UINT8_C(0xE8)
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#define BME280_CRC_DATA_LEN UINT8_C(1)
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#define BME280_CRC_CALIB1_ADDR UINT8_C(0x88)
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#define BME280_CRC_CALIB1_LEN UINT8_C(26)
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#define BME280_CRC_CALIB2_ADDR UINT8_C(0xE1)
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#define BME280_CRC_CALIB2_LEN UINT8_C(7)
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/*!
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* @brief This API calculates the CRC
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*
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* @param[in] mem_values : reg_data parameter to calculate CRC
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* @param[in] mem_length : Parameter to calculate CRC
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*
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* @return Result of API execution status
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* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
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*/
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static uint8_t crc_calculate(uint8_t *mem_values, uint8_t mem_length);
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/*!
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* @brief This API reads the stored CRC and then compare with calculated CRC
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*
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* @param[in] dev : Structure instance of bme280_dev.
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*
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* @return Result of API execution status
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* @retval zero -> self test success / +ve value -> warning(self test fail)
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*/
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int8_t bme280_selftest_crc(const struct bme280_dev *dev)
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{
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int8_t rslt;
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uint8_t reg_addr;
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uint8_t reg_data[64];
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uint8_t stored_crc = 0;
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uint8_t calculated_crc = 0;
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/* Read stored crc value from register */
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reg_addr = BME280_CRC_DATA_ADDR;
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rslt = bme280_get_regs(reg_addr, reg_data, BME280_CRC_DATA_LEN, dev);
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if (rslt == BME280_OK)
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{
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stored_crc = reg_data[0];
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/* Calculated CRC value with calibration register */
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reg_addr = BME280_CRC_CALIB1_ADDR;
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rslt = bme280_get_regs(reg_addr, ®_data[0], BME280_CRC_CALIB1_LEN, dev);
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if (rslt == BME280_OK)
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{
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reg_addr = BME280_CRC_CALIB2_ADDR;
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rslt = bme280_get_regs(reg_addr, ®_data[BME280_CRC_CALIB1_LEN], BME280_CRC_CALIB2_LEN, dev);
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if (rslt == BME280_OK)
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{
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calculated_crc = crc_calculate(reg_data, BME280_CRC_CALIB1_LEN + BME280_CRC_CALIB2_LEN);
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/* Validate CRC */
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if (stored_crc == calculated_crc)
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{
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rslt = BME280_OK;
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}
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else
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{
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rslt = BME280_W_SELF_TEST_FAIL;
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}
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}
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}
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}
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return rslt;
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}
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/*!
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* @brief This API calculates the CRC
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*
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* @param[in] mem_values : reg_data parameter to calculate CRC
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* @param[in] mem_length : Parameter to calculate CRC
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*
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* @return Result of API execution status
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* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
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*/
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static uint8_t crc_calculate(uint8_t *mem_values, uint8_t mem_length)
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{
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uint32_t crc_reg = 0xFF;
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uint8_t polynomial = 0x1D;
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uint8_t bitno, index;
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uint8_t din = 0;
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for (index = 0; index < mem_length; index++)
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{
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for (bitno = 0; bitno < 8; bitno++)
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{
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if ((crc_reg & 0x80) != (mem_values[index] & 0x80))
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{
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din = 1;
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}
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else
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{
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din = 0;
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}
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/* Truncate 8th bit for crc_reg and mem_values */
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crc_reg = (uint32_t)((crc_reg & 0x7F) << 1);
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mem_values[index] = (uint8_t)((mem_values[index] & 0x7F) << 1);
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crc_reg = (uint32_t)(crc_reg ^ (polynomial * din));
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}
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}
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return (uint8_t)(crc_reg ^ 0xFF);
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}
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@ -1,73 +0,0 @@
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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
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
|
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*
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* 2. Redistributions in binary form must reproduce the above copyright
|
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* notice, this list of conditions and the following disclaimer in the
|
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* 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
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* contributors may be used to endorse or promote products derived from
|
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* this software without specific prior written permission.
|
||||
*
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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
|
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* 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_selftest.h
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* @date 2020-01-24
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* @version v3.4.3
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*
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*/
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/*!
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* @addtogroup bme280_selftest
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* @brief
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*/
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#ifndef BME280_SELFTEST_H_
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#define BME280_SELFTEST_H_
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#include "bme280.h"
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/*! CPP guard */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**\name API warning code */
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#define BME280_W_SELF_TEST_FAIL INT8_C(2)
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/*!
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* @brief This API reads the stored CRC and then compare with calculated CRC
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*
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* @param[in] dev : Structure instance of bme280_dev.
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*
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* @return Result of API execution status
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* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
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*/
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int8_t bme280_selftest_crc(const struct bme280_dev *dev);
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/*! CPP guard */
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#ifdef __cplusplus
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}
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#endif
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#endif /* BME280_SELFTEST_H_ */
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/** @}*/
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