PCIe Pipeline Adaptation

In the previous section, you learned how to build a basic pipeline and test it on the DevKit. However, that setup does not yet allow you to transfer data from the host to the DevKit or retrieve data from the DevKit back to the host over PCIe. To enable this functionality, you will need to modify the pipeline to incorporate PCIe plugins. Here is the general concept:

  • Update the gst-launch command in the application.json by:

    • Replacing the simaaisrc input plugin with the simaaipciesrc plugin, and including the required parameters.

    • Swapping the simple_overlay output plugin for the simaaipciesink plugin, and providing the necessary parameters.

    • Make other necessary changes to application.json to align with the PCIe system architecture.

  • Develop a host-side application using the PCIe Host Side C++ APIs or Python APIs to exchange data with the DevKit.

  • Alternatively, you can utilize the pciehost host side plugin provided by SiMa to test the pipeline without having to write any host side code.

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