Not able to get Gas Estimate Channel X from BSEC

[jadeja14890]

Hello All
Goof Day!!
We are integrating BSEC library with BME688 sensor on NRF SDK ,
We succesfully able to get compensated Temprature , Humidity,Pressure value from BSEC
But we are facing issue to get Gas Estimate X out from BSEC,it always show zero value even after 45 minute of test run.
And also IAQ value always show 25 and "Run in status"  flag always show 0 from BSEC output.

Please suggest possible solustion of issue.

Please find detail log in Attachedment

Let me know if more information require.

[jadeja14890]

 Hello BSTRobin

Please find attached .c and .h file along with the configuration file that we are using for getting GAS_ESTIMATE_X data.

bsec.c file is created using the arduino example present in bsec library downloaded from BOSCH website.

Your reply at the earliest will be very helpful.

Thanks,

Vishvaraj

[jadeja14890]

Hello Robin,

Any updates on our query. 

It will be really helpful to us as we are stuck and unable to find any solution

[jadeja14890]

hello,

any updates??

[BSTRobin]

Hello jadeja14890,

Sorry for delay reply.
You migrated Arduino project to nordic platform. Could we know the following two
1.What code do you call the API(BSEC_2.0.1.0_Internel_Release\API\bme680.c)?
2.Before you call bme680_init() in your code, what is the initialization code for struct bme680_dev?

struct bme680_dev {
/*! Chip Id */
uint8_t chip_id;
/*! Device Id */
uint8_t dev_id;
/*! Unique id */
uint32_t unique_id;
/*! SPI/I2C interface */
enum bme680_intf intf;
/*! Memory page used */
uint8_t mem_page;
/*! Ambient temperature in Degree C*/
int8_t amb_temp;
/*! Sensor calibration data */
struct bme680_calib_data calib;
/*! Read function pointer */
bme680_com_fptr_t read;
/*! Write function pointer */
bme680_com_fptr_t write;
/*! Delay function pointer */
bme680_delay_fptr_t delay_ms;
/*! Communication function result */
int8_t com_rslt;
/*! Store the info messages */
uint8_t info_msg;
};

[jadeja14890]

Hi BSTROBIN,

Please Find Below Answer

1.What code do you call the API(BSEC_2.0.1.0_Internel_Release\API\bme680.c)?

     [Ans]    BSEC api callerd from Main.c  in While(1) loop  please see atached snapshot Main_c.png

2. Before you call bme680_init() in your code, what is the initialization code for struct bme680_dev?

 [Ans.] Regarding initialization of bme68x structure and bme68x_init, we are actually initializing BME688 before calling "initialize_bsec_library" from Main function

Please find attached code snippet for same (Main_C.png,bme688_get_dev_structure.png, and BME688_Init.png).