BME688: Chip ID and operation

[huytyskland]

Hello everyone,

Currently, I am working with the sensor BME 688 with the board Nucleo-WL55JC1. 

I am reading and testing the code with the self-test (https://github.com/BoschSensortec/BME68x-Sensor-API/blob/master/examples/self_test/self_test.c) and the code did not work. I tracked the code and in the file bme68x.c line 156, the chip id was not equal to the constant BME68X_CHIP_ID which led to the error Device Not Found.

I have 2 assumptions:

• There was something happened with the chip or the code (I only changed the I2C read and write function - attached later). For this I am not sure where to check.
• The  sensor BME688 did not work properly (did not turn on, hardware error,...). How can I check if this assumption is correct.

I changed the code of I2C read and write based on the attached folder of this reference (In the comment) . Basically, I used the

HAL_I2C_Master_Transmit and HAL_I2C_Master_Receive. I also commented out the SPI related functions.

Does anyone have any idea how to clarify my 2 assumptions?

Thank you, Huy Nguyen.

[huytyskland]

Hello Robin,

My apologies for replying you this late.

It turns out that the way I implement was correct but somehow the tool (Visual Code) I used had some issue which I had no idea. Later I changed to STM32Cube IDE and it worked great without any issue.

Thank you very much for your response, Huy Nguyen. 

[BSTRobin]

Hi huytyskland,

It is good as it could work normally.