driver and application files porting from SDK to linux kernel

RE: driver and application files porting from SDK to linux kernel

awneil — Thu, 17 Jan 2019 10:19:18 GMT

Excellent.

Time to Verify the Answer, then?

RE: driver and application files porting from SDK to linux kernel

ratnakar1978 — Thu, 17 Jan 2019 08:53:35 GMT

Thanks !! I could detect the port in linux enviornment.

RE: driver and application files porting from SDK to linux kernel

awneil — Tue, 15 Jan 2019 11:15:31 GMT

[quote userid="75657" url="~/f/nordic-q-a/42445/driver-and-application-files-porting-from-sdk-to-linux-kernel/165621"]CAn you please share example name(folder) where I can see the standard USB CDC/ACM Class device.[/quote]

Go to the documentation library

https://www.nordicsemi.com/DocLib

Choose 'SDK Documentation', and click on 'HTML'

https://www.nordicsemi.com/DocLib/Content/SDK_Doc/nRF5_SDK/v15-2-0/index

In the left-hand panel, choose 'Examples', then 'Hardware Peripheral Examples'

https://www.nordicsemi.com/DocLib/Content/SDK_Doc/nRF5_SDK/v15-2-0/examples_hw_peripheral_devices

Choose 'USB Examples' ...

RE: driver and application files porting from SDK to linux kernel

ratnakar1978 — Tue, 15 Jan 2019 03:29:55 GMT

Hi Awneil, Thanks for information !!

CAn you please share example name(folder) where I can see the standard USB CDC/ACM Class device.

I will look into serialisation and ble_driver_pc code.

Thanks again.

RE: driver and application files porting from SDK to linux kernel

awneil — Mon, 14 Jan 2019 15:28:28 GMT

OK - thanks for clarifying that.

That is the situation I was addressing in my first post - both here and in your other thread.

Nordic have examples where the nRF52840 implements a standard USB CDC/ACM Class device - ie, a "Virtual COM Port".

That would appear on a Linux host as a /dev/ttyusb... - just like a standard USB-to-Serial adaptor.

So, as previously mentioned, look at Serialisation and the ble-driver-pc

Or just devise your own protocol via the virtual COM Port

RE: driver and application files porting from SDK to linux kernel

ratnakar1978 — Mon, 14 Jan 2019 13:16:00 GMT

Hi Awneil, We are using Linux Kernel 4.9 under yocto build which is running on main CPU(i.MX7) board. With this CPU nRF52840 is interfaced with USB2.0 interface. Now with nRF52840 evaluation kit I am able to detect and program the device with "nrfjprog" command line tool as well as with Segger Embedded Studio. My main query is how can I detect the only nRF52840 chipset in target board with CPU using USB2.0 interface under linux OS. and then which basic test applications I can use to run on this chipset.

RE: driver and application files porting from SDK to linux kernel

awneil — Mon, 14 Jan 2019 13:08:18 GMT

Haven't we had this before:

https://devzone.nordicsemi.com/f/nordic-q-a/41595/port-driver-application-in-linux-enviorment-after-testing-done-using-nrf52-sdk

it remains unclear whether you're talking about developing code to run on your Linux system, or just using a Linux system as a development platform to create code to run on the nRF52840 ?

RE: driver and application files porting from SDK to linux kernel

awneil — Mon, 14 Jan 2019 13:04:53 GMT

The nRF52480 is a "SoC" - a "System-on-Chip" - it embeds a Cortex-M4 microcontroller and radio on a single chip.

I am talking about the Cortex-M4 within the nRF52840 chip.

Those files in the SDK are for running on the Cortex-M4 within the nRF52840 chip - they won't be of any use to run on an external Linux system.

EDIT

Or are you not talking about running on the Linux system? - see below

RE: driver and application files porting from SDK to linux kernel

ratnakar1978 — Mon, 14 Jan 2019 05:18:41 GMT

Hi Awneil, Thanks for response.

Can you please elaborate which SOC Embedded Cortex M4 CPU. As per my understanding nRF52480 contains ARM CORTEX-M4F CPU . So "nRF5_SDK_15.2.0_9412b96/modules/nrfx/drivers/src/" should support to nRF52480 based ARM M4 core CPU? Please confirm.

RE: driver and application files porting from SDK to linux kernel

awneil — Sat, 12 Jan 2019 14:32:43 GMT

[quote userid="75657" url="~/f/nordic-q-a/42445/driver-and-application-files-porting-from-sdk-to-linux-kernel/165292"]For USB interface also do I need to refer the above links ?[/quote]

AFAIK, the USB is just a standard CDC/ACM class - and Linux supports that.

[quote userid="75657" url="~/f/nordic-q-a/42445/driver-and-application-files-porting-from-sdk-to-linux-kernel/165292"]Can I use and port all nRF52480 chipset driver files from "nRF5_SDK_15.2.0_9412b96/modules/nrfx/drivers/src/" to my linux enviornment and use basic test application ?[/quote]

No - they are for running on the SoC's embedded Cortex-M4 CPU.

RE: driver and application files porting from SDK to linux kernel

ratnakar1978 — Sat, 12 Jan 2019 13:38:38 GMT

Hi Awneil, Thanks for prompt response.

For USB interface also do I need to refer the above links ?

Can I use and port all nRF52480 chipset driver files from "nRF5_SDK_15.2.0_9412b96/modules/nrfx/drivers/src/" to my linux enviornment and use basic test application ?

RE: driver and application files porting from SDK to linux kernel

awneil — Sat, 12 Jan 2019 10:46:47 GMT

[quote userid="75657" url="~/f/nordic-q-a/42445/driver-and-application-files-porting-from-sdk-to-linux-kernel"]basic communication from external CPU to nRF52480 chipset[/quote]

The most basic communication would be a UART link - you wouldn't need any special kernel drivers for that.

eg: devzone.nordicsemi.com/.../155534

Have you looked at Serialisation (also mentioned in the above link) ?

There's also the ble-driver-pc

github.com/.../pc-ble-driver

Try a forum search; eg,

https://devzone.nordicsemi.com/f/nordic-q-a/17903/hci-controlling-interface-nrf52/

https://devzone.nordicsemi.com/f/nordic-q-a/17783/nrf52832-hci-firmware

https://devzone.nordicsemi.com/f/nordic-q-a/36627/linux-central-and-52840-blinky-app

etc, ...