Does the INTERNAL_FREQ_FINE register of ASM330LHH indicate that there is a frequency deviation? In this case, how should it be used under the standard time interval algorithm requirements?

[wb.2]

Hello, may I ask whether the INTERNAL_FREQ_FINE register was written before delivery?Can it be understood that the actual data frequency of each ASM330LHH IC is different?

My project will use many same sensors to collect acceleration and gyroscope at the same time, and the algorithm requires standard, fixed data intervals. When I used FIFO and timestamp of ASM330HHL to get each data from SPI, I found that the actual data and time obtained cannot exactly correspond to the time in the real world.

What should I do, please?

Thanks very much.

[wb.2]

If it is true that ASM330LHH has a frequency deviation, is it a common problem in the accelerometer and gyroscope sensor industry?Or do other brands or families of accelerometer and gyroscope sensors have the same problem?

[Eleon BORLINI]

Hi @wb.2​ ,

please check this thread for same question.

Regards