I wanted to used internal filter of the accelerometer LIS3DSH, but I couldn't find proper documentation regarding this. Can anyone please help me regarding this.
could you give us more details about that?
In what respect does this application note does not bring enough info ?
The application note is for LIS3DH which is different device.
Hi, as Miroslav said the application note is of different IC. The LIS3DSH has internal 7 order FIR filter, I need to implement that filter. I need help regarding this. Any help will be appreciated.
The application note for LIS3DSH is AN3393.
In the application note describes the FIR filter, but I'm afraid it is not useful as you would expect. The FIR filter is used only on a vector value calculated from X,YZ and the output value is used in the state machine and is not available externally.
Miroslav B Thank you for your reply. I have look into the application note. There are couple of things I didn't understand. The filter use 8 input data, so should we mark FIFO to hold upto 8 data? Or does it automatically filter the data when we enable it regardless of FIFO? Also in the datasheet, there is a filter coefficient and claims it perform band-pass operation, but, it doesn't say about the cut-off frequencies or sampling rate to get that coefficient. Can you please help me regarding this?
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