Configuring RAM retention in 7002dk

RE: Configuring RAM retention in 7002dk

Menon — Fri, 23 Feb 2024 14:54:45 GMT

Hello,

[quote user="bug123"]So if I am running Wifi shell example in nrf7002dk_5340 then I can configure RAM in what all configurations?[/quote]

Could you elaborate a little bit on this, like what you mean by configuration here? Are you asking about the Kconfig or the prj.config here? What is your use case here?

Kind Regards,

Abhijith

RE: Configuring RAM retention in 7002dk

Ishika123 — Wed, 21 Feb 2024 07:44:13 GMT

[quote userid="115767" url="~/f/nordic-q-a/108168/configuring-ram-retention-in-7002dk/469562"]This depends on your application, like whatever configurations you are using inside the project.[/quote]

So if I am running Wifi shell example in nrf7002dk_5340 then I can configure RAM in what all configurations?

Regards

Ishika

RE: Configuring RAM retention in 7002dk

Ishika123 — Wed, 21 Feb 2024 04:48:51 GMT

Hi,

Okay.

[quote userid="115767" url="~/f/nordic-q-a/108168/configuring-ram-retention-in-7002dk/469390"]

See the file ncs\v2.5.x\zephyr\boards\arm\nrf5340dk_nrf5340 inside the SDK for better understanding.

[/quote]

I saw the file inside this path and it gave me much better understanding.

Just curious where I can get this type of description for nRF7002dk_nrf5340? or the partition configs are same for nrf5340dk_nrf5340 and nrf7002dk_nrf5340.

And if we want to change memory allocation where can we do that?

Regards

Ishika

RE: Configuring RAM retention in 7002dk

Menon — Mon, 19 Feb 2024 14:18:12 GMT

Hello,

This depends on your application, like whatever configurations you are using inside the project. But if you are asking if there is any minimal shared_SRAM to be maintained for the proper working of the softdevice controller, then I can't give a minimal number here. Take a look at this thread.

See the detailed explanation of the memory report inside the VSCode extension.

Kind Regards,

Abhijith

RE: Configuring RAM retention in 7002dk

Ishika123 — Mon, 19 Feb 2024 07:35:22 GMT

I am using nrf7002dk_5340 for running the samples.

RE: Configuring RAM retention in 7002dk

Ishika123 — Mon, 19 Feb 2024 07:21:36 GMT

Okay. Also regarding ram configurations, are there any pre defined configs you guys do or have any API regarding the same. Or user can just configure any RAM size just by manually editing?

Regards,

Ishika

RE: Configuring RAM retention in 7002dk

Menon — Mon, 19 Feb 2024 07:16:01 GMT

Hello,

The image gives an idea of the total available RAM for the app_core and the RAM used by the application. The "Region Size" section inside the image (448 kb) shows the available RAM. It is like 448KB app_core+. 64 KB of shared SRAM (by default, but it is adjustable) makes for 512KB of RAM. See the inter-core communication section.

See the file ncs\v2.5.x\zephyr\boards\arm\nrf5340dk_nrf5340 inside the SDK for better understanding.

Kind Regards,

Abhijith

RE: Configuring RAM retention in 7002dk

Ishika123 — Mon, 19 Feb 2024 04:47:41 GMT

Hi Abhijith,

Surely will look into this. One last thing, while building the sample example in terminal we get the Ram and the memory, what does that memory signify? Is it the total RAM being allocated or the RAM used?

Regards,

Ishika

RE: Configuring RAM retention in 7002dk

Menon — Fri, 16 Feb 2024 12:55:53 GMT

Hello Ishika,

Sorry for the delay occurred.

[quote user=""]I want to know whether there is any provision for knowing the RAM retained and configuring it.[/quote]

I recommend you read about the partition manager, which helps in allocating and configuring RAM.

[quote user=""]How to know how much RAM is allotted and is there any method or change in code by which we can configure it?[/quote]

Configuring the RAM is done in the partition manager itself. The memory report you are seeing is a bit self-explanatory, like a good view of what is being used where.

[quote user=""]How to change power states from shutdown to sleep and know the ram retained for both the cases.[/quote]

Take a look at the nRF5x system OFF demo; this explains both system OFF and RAM retention in low power mode.

Kind Regards,

Abhijith

RE: Configuring RAM retention in 7002dk

Ishika123 — Fri, 16 Feb 2024 05:15:24 GMT

Hi Abhijith,

Any update regarding the same?

Regards,

Ishika

RE: Configuring RAM retention in 7002dk

Menon — Wed, 14 Feb 2024 15:38:05 GMT

Hello,

Sorry for the delay. I was held up by attending a training. I will get back to you soon.

Kind Regards,

Abhijith

RE: Configuring RAM retention in 7002dk

Ishika123 — Wed, 14 Feb 2024 07:20:15 GMT

Hi, please could you give any update regarding the same, as I am not able to proceed any further in my project.

RE: Configuring RAM retention in 7002dk

Ishika123 — Mon, 12 Feb 2024 04:39:20 GMT

Hi, is there any update regarding this?