Raspberry Pi 3 B Simulink Sensor Implementation SPI

Hello,

I need help to implement an angle sensor AMT203 CUI on a raspberrypi 3b using Matlab Simulink. Do I have to unlock the SPI Pins first in the Command Window? Which Simulink blocks do I use to read data from those pins, SPI register read, or GPIO read?

Answer 1

[Prasanth Sunkara]

Hello Ferdinand,

If you are working with a SPI sensor, you should have the SPI module enabled. In most cases, SPI module(and the SPI pins) are enabled by default. You can check this using raspi-config.

You can directly use the SPI blocks to interact with the sensor.

For reference, please see the below links.

SPI example: https://www.mathworks.com/help/supportpkg/raspberrypi/ref/communicating-with-an-eeprom.html

SPI Read: https://www.mathworks.com/help/supportpkg/raspberrypi/ref/spiregisterread.html

SPI Write: https://www.mathworks.com/help/supportpkg/raspberrypi/ref/spiregisterwrite.html

Hope this helps!

Thanks,

Prasanth

[Ferdinand]

Thank you Prasanth.

Where do I get the register adresses for SPI REGISTER WRITE/READ blocks, can I find them in the datasheet of the sensor's microchip?

With kind regards,

Ferdinand

[Prasanth Sunkara]

Sorry for the late reply. Yes, those values can be found in the sensor's datasheet.

Thanks,

Prasanth