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How do I interface the GPIOs on zedboard?

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Vallabh
Vallabh on 26 Sep 2024
Edited: Sameer Mule on 9 Oct 2024
I have setup the Zedboard using the HDL coder support package for xilinx devices. But I don't find any available interfaces to use the onboard GPIOs or any peripherals. I have looked into the resolution by simulink https://in.mathworks.com/matlabcentral/answers/426029-how-to-control-gpio-of-arm-on-zedboard that it currently does not support any FPGAs.
Is it possible to do with the S functions?

Answers (1)

Sameer Mule
Sameer Mule on 8 Oct 2024
You can utilize the addExternalIOInterface function within the board plugin to incorporate GPIO into your design. For more detailed information, please refer to the documentation at the following link: MathWorks Documentation.
For more information about Zedboard plugins, please visit the following link: MathWorks Documentation.
  2 Comments
Vallabh
Vallabh on 9 Oct 2024
Is there any example to interface GPIOs using the function available?
Sameer Mule
Sameer Mule on 9 Oct 2024
Edited: Sameer Mule on 9 Oct 2024
In MATLAB R2024a and later, navigate to matlabroot/toolbox/hdlcoder/boards/amd/+ZedBoard/. For versions before R2024a, go to support_package_installation_folder/toolbox/hdlcoder/supportpackages/zynq7000/+ZedBoard/. In these directories, you can see how addExternalIOInterface is utilized in plugin_board.m for LEDs, switches, and push buttons. You can use this as a reference to add GPIO similarly.

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