Custom nRF5340 board does not build parent/child images (no hci_rpmsg image built)

[Neel Polas]

Hello,

I am working on a custom board based on the nRF5340 SoC. When I build any BLE sample (for example, peripheral_hr or peripheral_uart) for the nRF5340DK, the build system correctly creates two images — a parent image (application core) and a child image (hci_rpmsg for the network core).

However, when I build the same BLE sample for my custom board, only the application image is built — the hci_rpmsg (network core) child image is not created.

What additional configuration or file is required so that sysbuild automatically builds the hci_rpmsg (network core) child image for a custom nRF5340 board, just like it does for the nRF5340DK?

Build environment:

• nRF Connect SDK: v2.9.0
  
• Toolchain: nRF Connect Toolchain v2.9.0
  
• OS: Windows 11

 

[Kazi Afroza Sultana]

Hello,

There is a previous case you can look at (6) Nordic DevZone.'

Most of the cases of BLE sample, the network core image should be hci_ipc or hci_rpmsg. We need to add the following config file to the sysbuild.conf file.

SB_CONFIG_NETCORE_HCI_IPC=y