LSM6DSV16BX TDM

Arduino library to support the TDM feature of the LSM6DSV16BX MEMS sensor. Currently, this library works only with the STEVAL-MKI237KA and a NUCLEO-U575ZI-Q. It requires a STM32 Core equal to or greater than version 2.0.0.

API

This library acquires PCM.

PCM

Before acquire PCM it is required to initialize it:

PCM.begin();

Thanks to PCM instance, it is possible to start to acquire the data, stop, pause the acquisition and resume.

• Start to acquire the PCM data:

PCM.Record(buffer);

• Stop to acquire the PCM data:

PCM.Stop();

• Pause the acquisition:

PCM.Pause();

• Resume the acquisition.

PCM.Resume();

• To perform a function to process the data (foo in the example), it can call the function below:

PCM.onReceive(foo);

Examples

• LSM6DSV16BX_TDM_Python_Wave_Serial_Encoder: This application shows how to record some TDM data with LSM6DSV16BX IMU sensor and send them through serial to a Python application which will write data to a wave file (Python application can be downloaded at https://github.com/stm32duino/Python-Wave-Serial-Encoder)

You need to connect the STEVAL-MKI237KA eval board directly to the NUCLEO-U575ZI-Q board with wires as explained below:

• pin 1 (VDD) of the STEVAL-MKI237KA eval board connected to pin 3V3 of the NUCLEO-U575ZI-Q board
• pin 2 (VDDIO) of the STEVAL-MKI237KA eval board connected to pin IOREF of the NUCLEO-U575ZI-Q board
• pin 3 (WCLK) of the STEVAL-MKI237KA eval board connected to pin FS of SAI_B of the NUCLEO-U575ZI-Q board
• pin 4 (BCLK) of the STEVAL-MKI237KA eval board connected to pin SCK of SAI_B of the NUCLEO-U575ZI-Q board
• pin 6 (TDM) of the STEVAL-MKI237KA eval board connected to pin SD of SAI_B of the NUCLEO-U575ZI-Q board
• pin 13 (GND) of the STEVAL-MKI237KA eval board connected to GND of the NUCLEO-U575ZI-Q board
• pin 19 (CS) of the STEVAL-MKI237KA eval board connected to pin AVDD of the NUCLEO-U575ZI-Q board
• pin 20 (SCL) of the STEVAL-MKI237KA eval board connected to pin D15 SCL of the NUCLEO-U575ZI-Q board
• pin 21 (SDA) of the STEVAL-MKI237KA eval board connected to pin D14 SDA of the NUCLEO-U575ZI-Q board

Dependencies

The LSM6DSV16BX-TDM library requires the following STM32duino library:

• STM32duino LSM6DSV16BX: https://github.com/stm32duino/LSM6DSV16BX

Documentation

You can find the source files at https://github.com/stm32duino/LSM6DSV16BX-TDM

The LSM6DSV16BX datasheet is available at https://www.st.com/en/mems-and-sensors/lsm6dsv16bx.html