temperature values is always 0

[JimitP]

Hi ,

I am trying to integrate BESEC software to interface BME680  with EFR32BG22(Cortex M33).I sucessfully integrate libalgobsec.a file for GCC cortex M33F into my project.The project get  compiled sucessfully without any error.

I have problem with the output data from the BME680.The temperature value remain 0 all the time, and CO2,Iaq and breath values take quiet long time to show-up (initially they all shows 0 values)

My program take reading every 3 sec. I am using simplicity studio IDE and GNU ARM v10.2.1 compiler.

I susppect there is  someting wrong with bsec_init()(initialization in BESEC library) function .It looks like  temperature functionality of BME680 is not getting initialize properly.

I am attaching the snapshot output console:

Please help me to resolve this issue.

Thank You

 

[Minhwan]

Hello, 

If you are using BME680 + BSEC, I believe that you are using our latest BSEC library as below. (If you don't use our reference code, please let me know) 

https://www.bosch-sensortec.com/software-tools/software/bsec/

And there is example code you can refer to.

\BSEC Library\bsec_1-4-8-0_generic_release\BSEC_1.4.8.0_Generic_Release\examples\bsec_iot_example.c

After applying my suggestion, if you still have problem, please let me know. 

Thanks, 

[JimitP]

Yes, I am using Bosch latest BESEC library and, my program is based on besec_iot_example.c code.

I still have problem with temperature value.

[Minhwan]

Okay, 

Following two questions. 

1) Did you change any source code except bsec_iot_example.c? 

2) If no, please share your bsec_iot_example.c? If yes, you need to share the changed source code. 

Thanks, 

[JimitP]

I did not change any source code .

I have  rewrite bsec_iot_example.c into two separete files ,one file has all th defination of functions and the other contain only the main() function

I am attaching two files.

1. app.c (contain main() function)

2.BME.c (contain function defination)

please find the attached files

Thank You