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/**
* Copyright (C) Bosch Sensortec GmbH. All Rights Reserved. Confidential.
*
* Disclaimer
*
* Common:
* Bosch Sensortec products are developed for the consumer goods industry. They may only be used
* within the parameters of the respective valid product data sheet. Bosch Sensortec products are
* provided with the express understanding that there is no warranty of fitness for a particular purpose.
* They are not fit for use in life-sustaining, safety or security sensitive systems or any system or device
* that may lead to bodily harm or property damage if the system or device malfunctions. In addition,
* Bosch Sensortec products are not fit for use in products which interact with motor vehicle systems.
* The resale and/or use of products are at the purchaser's own risk and his own responsibility. The
* examination of fitness for the intended use is the sole responsibility of the Purchaser.
*
* The purchaser shall indemnify Bosch Sensortec from all third party claims, including any claims for
* incidental, or consequential damages, arising from any product use not covered by the parameters of
* the respective valid product data sheet or not approved by Bosch Sensortec and reimburse Bosch
* Sensortec for all costs in connection with such claims.
*
* The purchaser must monitor the market for the purchased products, particularly with regard to
* product safety and inform Bosch Sensortec without delay of all security relevant incidents.
*
* Engineering Samples are marked with an asterisk (*) or (e). Samples may vary from the valid
* technical specifications of the product series. They are therefore not intended or fit for resale to third
* parties or for use in end products. Their sole purpose is internal client testing. The testing of an
* engineering sample may in no way replace the testing of a product series. Bosch Sensortec
* assumes no liability for the use of engineering samples. By accepting the engineering samples, the
* Purchaser agrees to indemnify Bosch Sensortec from all claims arising from the use of engineering
* samples.
*
* Special:
* This software module (hereinafter called "Software") and any information on application-sheets
* (hereinafter called "Information") is provided free of charge for the sole purpose to support your
* application work. The Software and Information is subject to the following terms and conditions:
*
* The Software is specifically designed for the exclusive use for Bosch Sensortec products by
* personnel who have special experience and training. Do not use this Software if you do not have the
* proper experience or training.
*
* This Software package is provided `` as is `` and without any expressed or implied warranties,
* including without limitation, the implied warranties of merchantability and fitness for a particular
* purpose.
*
* Bosch Sensortec and their representatives and agents deny any liability for the functional impairment
* of this Software in terms of fitness, performance and safety. Bosch Sensortec and their
* representatives and agents shall not be liable for any direct or indirect damages or injury, except as
* otherwise stipulated in mandatory applicable law.
*
* The Information provided is believed to be accurate and reliable. Bosch Sensortec 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 Bosch. Specifications mentioned in the Information are
* subject to change without notice.
*
* It is not allowed to deliver the source code of the Software to any third party without permission of
* Bosch Sensortec.
*
*/
/*!
* @file bsec_iot_example.c
*
* @brief
* Example for using of BSEC library in a fixed configuration with the BME68x sensor.
* This works by running an endless loop in the bsec_iot_loop() function.
*/
/*!
* @addtogroup bsec_examples BSEC Examples
* @brief BSEC usage examples
* @{*/
/**********************************************************************************************************************/
/* header files */
/**********************************************************************************************************************/
#include "bsec_integration.h"
/**********************************************************************************************************************/
/* functions */
/**********************************************************************************************************************/
/*!
* @brief Write operation in either Wire or SPI
*
* param[in] reg_addr register address
* param[in] reg_data_ptr pointer to the data to be written
* param[in] data_len number of bytes to be written
* param[in] intf_ptr interface pointer
*
* @return result of the bus communication function
*/
int8_t bus_write(uint8_t reg_addr, const uint8_t *reg_data_ptr, uint32_t data_len, void *intf_ptr)
{
// ...
// Please insert system specific function to write to the bus where BME68x is connected
// ...
return 0;
}
/*!
* @brief Read operation in either Wire or SPI
*
* param[in] reg_addr register address
* param[out] reg_data_ptr pointer to the memory to be used to store the read data
* param[in] data_len number of bytes to be read
* param[in] intf_ptr interface pointer
*
* @return result of the bus communication function
*/
int8_t bus_read(uint8_t reg_addr, uint8_t *reg_data_ptr, uint32_t data_len, void *intf_ptr)
{
// ...
// Please insert system specific function to read from bus where BME68x is connected
// ...
return 0;
}
/*!
* @brief System specific implementation of sleep function
*
* @param[in] t_us Time in microseconds
* @param[in] intf_ptr Pointer to the interface descriptor
*
* @return none
*/
void sleep_n(uint32_t t_us, void *intf_ptr)
{
// ...
// Please insert system specific function sleep or delay for t_ms milliseconds
// ...
}
/*!
* @brief Capture the system time in microseconds
*
* @return system_current_time current system timestamp in microseconds
*/
int64_t get_timestamp_us()
{
int64_t system_current_time = 0;
// ...
// Please insert system specific function to retrieve a timestamp (in microseconds)
// ...
return system_current_time;
}
/*!
* @brief Handling of the ready outputs
*
* @param[in] outputs output_t structure
* @param[in] bsec_status value returned by the bsec_do_steps() call
*
* @return none
*/
void output_ready(output_t *outputs, bsec_library_return_t bsec_status)
{
// ...
// Please insert system specific code to further process or display the BSEC outputs
// ...
}
/*!
* @brief Load previous library state from non-volatile memory
*
* @param[in,out] state_buffer buffer to hold the loaded state string
* @param[in] n_buffer size of the allocated state buffer
*
* @return number of bytes copied to state_buffer
*/
uint32_t state_load(uint8_t *state_buffer, uint32_t n_buffer)
{
// ...
// Load a previous library state from non-volatile memory, if available.
//
// Return zero if loading was unsuccessful or no state was available,
// otherwise return length of loaded state string.
// ...
return 0;
}
/*!
* @brief Save library state to non-volatile memory
*
* @param[in] state_buffer buffer holding the state to be stored
* @param[in] length length of the state string to be stored
*
* @return none
*/
void state_save(const uint8_t *state_buffer, uint32_t length)
{
// ...
// Save the string some form of non-volatile memory, if possible.
// ...
}
/*!
* @brief Load library config from non-volatile memory
*
* @param[in,out] config_buffer buffer to hold the loaded state string
* @param[in] n_buffer size of the allocated state buffer
*
* @return number of bytes copied to config_buffer
*/
uint32_t config_load(uint8_t *config_buffer, uint32_t n_buffer)
{
// ...
// Load a library config from non-volatile memory, if available.
//
// Return zero if loading was unsuccessful or no config was available,
// otherwise return length of loaded config string.
// ...
return 0;
}
/*!
* @brief Main function which configures BSEC library and then reads and processes the data from sensor based
* on timer ticks
*
* @return result of the processing
*/
int main()
{
return_values_init ret;
struct bme68x_dev bme_dev;
memset(&bme_dev,0,sizeof(bme_dev));
/* Call to the function which initializes the BSEC library
* Switch on low-power mode and provide no temperature offset */
ret = bsec_iot_init(BSEC_SAMPLE_RATE_LP, 0.0f, bus_write, bus_read, sleep_n, state_load, config_load, bme_dev, 0);
if (ret.bme68x_status)
{
/* Could not intialize BME68x */
return (int)ret.bme68x_status;
}
else if (ret.bsec_status)
{
/* Could not intialize BSEC library */
return (int)ret.bsec_status;
}
/* Call to endless loop function which reads and processes data based on sensor settings */
/* State is saved every 10.000 samples, which means every 10.000 * 3 secs = 500 minutes */
bsec_iot_loop(sleep_n, get_timestamp_us, output_ready, state_save, 10000);
return 0;
}
/*! @}*/