Hi, I am using LSM6D33 accelerometer sensor. I want to measure vibration and I didn’t find anything this subject. How can I calculate vibration ?

I am trying to use the SPI interface with a SPI ADXL345 sensor and the STM32F072 Nucleo board.I want to make a very basic read operation.Now the read function is blocked in waiting the the RXNE signal.But the RXNE is never set . SPI always read 0. I ...