BLE application on network processor not running when Application processor is programmed with any other project than empty_app_core on NRF5340

[AhmedPs19]

Hello,

I have a application that uses some spi for application core of the NRF5340 , it works fine when nothing is loaded into network core. My project requires some BLE feature which needs to run in parallel with the time critical features running on the application core , so I have utilized the network core of NRF5340 and programmed it with peripheral_lbs sample code (just for evaluation), BLE code only works when empty_app_core is loaded into the application core. Please advice me how can I use application core other that empty_app_core along with BLE application running on network core.

Regards,

Ahmed

[Amanda Hsieh]

Hi, 

You can run the NCS Bluetooth samples on the app core which would load HCI RPMsg on net core to run the Bluetooth Controller. 

See Developing with nRF5340 DK/Multi-image builds guide. 

Regards,
Amanda H.

[AhmedPs19]

Just to clarify me question , I have built the sample "peripheral_lbs" with the target corenrf5340dk_nrf5340_cpunet , and running some spi related code on application core . When I program both images with nrf connect for Desktop , both of them seems to work fine . But when I press the reset button on devkit my code gets stuck. Please advise what is causing the issue with reset.

Regards,

Ahmed

[Amanda Hsieh]

Hi,

"peripheral_lbs" doesn't support nrf5340dk_nrf5340_cpunet. See the supported development kits list. 

You could merge the spi code to peripheral_lbs. The sample would build the HCI RPMsg as a child image, and then west flash and VScode would program it as with the app image. 

-Amanda H.