nRF5340 Network core and application core communication

RE: nRF5340 Network core and application core communication

Jørgen Holmefjord — Thu, 07 Mar 2024 16:47:59 GMT

Did you also flash it using command line?

west flash

If you build it from command line and then flash it from VS Code, VS Code will rebuild with the set build configuration before flashing.

To make sure, please try specifying a different build folder:

west build -p -b nrf5340dk_nrf5340_cpuapp -d build_rpc -- -DCONFIG_BT_RPC_STACK=y
west flash --recover -d build_rpc

RE: nRF5340 Network core and application core communication

geek — Wed, 06 Mar 2024 13:30:27 GMT

sorry i closed ticket by mistake !

[quote userid="14926" url="~/f/nordic-q-a/108876/nrf5340-network-core-and-application-core-communication/472468"]Have you tried building and flashing directly using west from command line?[/quote]

i already built and flashed the code from west using this command

"west build -b nrf5340dk_nrf5340_cpuapp -- -DCONFIG_BT_RPC_STACK=y"

as provided in the link

RE: nRF5340 Network core and application core communication

Jørgen Holmefjord — Wed, 06 Mar 2024 13:12:18 GMT

Your image shows hci_rpmsg, which is not the RPC host image.

How did you add the CONFIG_BT_RPC_STACK=y symbol to VS Code?

Have you tried building and flashing directly using west from command line?

I tested it with nRF Connect SDK v2.5.0, and it runs correctly on my DK when built from command line.

RE: nRF5340 Network core and application core communication

geek — Wed, 06 Mar 2024 11:57:51 GMT

I managed to build the Peripheral UART example using the provided command

" west build -b nrf5340dk_nrf5340_cpuapp -- -DCONFIG_BT_RPC_STACK=y "

but all i can see at the terminal as provided here and it can tells that the system reset and i can see any logs at the both cores also the BLE not advertising so i can discover it using the nRF connect mobile APP

RE: nRF5340 Network core and application core communication

Jørgen Holmefjord — Wed, 06 Mar 2024 09:54:16 GMT

See example build:

"The recommended way of building the nRF RPC Host sample is to use the multi-image feature of the build system, building the sample with the same Bluetooth configuration as the application core sample. In this way, the sample is built automatically as a child image when the CONFIG_BT_RPC_STACK option is enabled."

RE: nRF5340 Network core and application core communication

geek — Tue, 05 Mar 2024 15:54:11 GMT

Thank you for the guidance

I followed the sample
I have some questions

1- I only managed to flash the sample to the cpunet core and can't use multi image build ,but all i can see it this output “Starting nRF RPC bluetooth host” and the main function of sample is empty so i can't debug the code to understand its functionality how the sample is supposed to behave ? and how to perform the multi-image build ?

RE: nRF5340 Network core and application core communication

Jørgen Holmefjord — Mon, 04 Mar 2024 16:09:46 GMT

Hi,

See example in Full Bluetooth LE stack.

Best regards,
Jørgen

RE: nRF5340 Network core and application core communication

geek — Mon, 04 Mar 2024 11:10:21 GMT

Amanda Hsieh

could you help please