Data transfer between APP core and Net core.

RE: Data transfer between APP core and Net core.

Einar Thorsrud — Fri, 10 Nov 2023 13:38:34 GMT

Yes, it is possible (see the ESB samples), but it only runs on the network core.

That it is not directly relevant for this thread, though. Pleas make a new case if you have further questions.

RE: Data transfer between APP core and Net core.

Avgerinos89 — Fri, 10 Nov 2023 13:30:07 GMT

Is it possible to use ESB on nrf5340?

RE: Data transfer between APP core and Net core.

Einar Thorsrud — Fri, 19 Feb 2021 20:04:28 GMT

Hi,

If you want something simpler then you can refer to the example included in this post.

RE: Data transfer between APP core and Net core.

jakkra — Thu, 18 Feb 2021 17:38:32 GMT

Did you get something up and running? I cannot get OpenAMP to work.

RE: Data transfer between APP core and Net core.

Einar Thorsrud — Fri, 07 Aug 2020 14:59:21 GMT

Hi,

No, it is not necessary to use OpenAMP. That is just a library that implements a form of interprocess communication using shared memory. You could do it yourself if you like. The advantage of using a library is that you get a robust system ready to use, though.

RE: Data transfer between APP core and Net core.

Christian Wagner — Fri, 07 Aug 2020 10:59:07 GMT

Is it necessary to use OpenAMP for inter-core communication? I have an appilcation where the App core is responsible for sampling 8 sensors and doing some digital filtering. As a simple test, I'll just send out the data with a basic protocol like ESB to another nRF5340. So I don't have many fanctions accessing the same variables. I just want the App core to signal that the sampling and filtering has finished. Then the Net core should take that data and send it out.

I already have the IPC working, so I can signal events between cores, but I can't figure out how to share the data. I guess that I'd pass a pointer to the data from the App core to the Net core. This would only have to be done once. I just don't know how. Through a shared register?

RE: Data transfer between APP core and Net core.

Einar Thorsrud — Mon, 22 Jun 2020 12:40:47 GMT

Hi,

[quote user=""]Can we get a sample application for NRF5340 where App core and Net core exchanges data with each other ?[/quote]

The BLE examples use HCI over OpenAMP, so that is a reference of how this is done. There is no simple example demonstrating this on the nRF53, but you can refer to the implementation of Bluetooth: HCI RPMsg. You can also look at the OpenAMP Sample Application, though it does not support the nRF53 out of the box.