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  • Case ID: 266510
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NRF5340 Multi-Image example configuration help

user102664

I am working on a project that is being ported from the nRF52840 to the nRF5340 and the once unified radio and app codebase needs to be split to the app CPU and network CPU.

The problem I am facing is I don't quite understand how to create a multi image project and the examples provided by nrf_connect dont seme to have a multi image example.

All I see are options when selecting the example for app cpu or net cpu which look to configure the device tree  for that CPU but I don't see any for multi image projects.

When reading the documentation for the radio_test example I see that the app CPU needs to be flashed with the empty_app_core project but I would like to include this project as a parent to the radio_test child project.

Is there any examples on how to do this?

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  • 0

    Hello,

    I didn't get the mutlig image build to to work with the radio test example even though 'empty_app_core' is defined as a child image in \nrf\samples\CMakelists.txt. I need to investigate this a bit more and get back to you.

    That said, there are mulitple examples of multi image projects in NCS. The BLE projects do for instance include the 'HCI_rpsmg' sample as a child image when you build for the app core. Have you tried that?

    Best regards,

    Vidar

  • 0 in reply to user4240

    Hi,

    What I meant was to make empty_app_core, or any main core project the parent and when built would also build the child project to combine into one to flash.

    I tried some of the BLE projects and I see that HCI_rpsmg is a child image which I will look into more. I'm still new to this new SDK so it will take some getting used to.

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