Question

For the LIS3MDL sensor chip, find out the appropriate values to be written into the control registers with the following parameter setting in the format of reg_name ← val: (a) Enable temperature sensor, select high-performance mode for X- and Y-axes, and set output data rate to 20 Hz

(b) Set full-scale magnetic flux density to ±12 gauss (c) Select non-low power mode, 4-wire SPI mode, and continuous conversion mode (d) Select high-performance mode for Z-axis and little endian format (e) Enable block data update

Answer 1

To configure the LIS3MDL sensor chip with the appropriate values for the given parameter settings, the following register values need to be written:

(a) Enable temperature sensor, select high-performance mode for X- and Y-axes, and set output data rate to 20 Hz:

- CTRL_REG1 ← 0x78

This sets the temperature sensor to enabled, enables high-performance mode for the X and Y axes, and sets the output data rate to 20 Hz.

(b) Set full-scale magnetic flux density to ±12 gauss:

- CTRL_REG2 ← 0x60

This sets the full-scale magnetic flux density to ±12 gauss.

(c) Select non-low power mode, 4-wire SPI mode, and continuous conversion mode:

- CTRL_REG3 ← 0x00

This selects the non-low power mode, 4-wire SPI mode, and continuous conversion mode.

(d) Select high-performance mode for Z-axis and little endian format:

- CTRL_REG4 ← 0x0C

This selects high-performance mode for the Z-axis and little endian format.

(e) Enable block data update:

- CTRL_REG5 ← 0x40

This enables block data update.

By writing these values to the corresponding control registers, the LIS3MDL sensor chip will be configured according to the given parameter settings. Please note that the register values mentioned above are in hexadecimal format and may need to be converted to the appropriate format depending on the interface used to communicate with the sensor chip.