How can I verifiy the trimming coefficients stored in the NVM of the BMP390 sensor? I would expect to find a checksum somewhere in the NVM section and a corresponding checksum formula in order to be able to verify the values. This is a memory dump of the trimming coefficients received from the BMP390 (Register addresses: 0x31 - 0x45):
Thanks for your inquiry.
BMP390 doesn't have checksum to verify if the read from NVM for the coefficient parameters are correct or not. Basically you could run self-test at https://www.bosch-sensortec.com/media/boschsensortec/downloads/application_notes_1/bst-mps-an006.pdf. If the self-test passes, then it means the parameters from NVM are correct. Otherwise, the self-test will fail.
BMP390 API source code can be found at https://github.com/BoschSensortec/BMP3-Sensor-API.