"no connect "device in nRF Connect for VSCode

RE: "no connect "device in nRF Connect for VSCode

Menon — Thu, 26 Sep 2024 12:29:56 GMT

Hello,

You can use nrfutil to create a merged DFU package after building your application. Once the package is created, you can use nrfutil to perform the DFU over serial. However, the concern I see here is the bootloader on your board. If the rak4631_factory_bootloader.zip file already has MCUboot flashed on your device, then what you've described should be possible.

Unfortunately, I'm not familiar with the specific bootloader file you mentioned

Kind Regards,

Abhijith

RE: "no connect "device in nRF Connect for VSCode

Claudio Rosa — Thu, 26 Sep 2024 12:27:34 GMT

Hi João,

This is a interesting point because, take a look in the @Menon post he said:

"I am not entirely sure as I haven't worked with the specific board you mentioned. I reviewed the guide you referred to, but it doesn't specify which bootloader is being used. It mentions the RAK4631 bootloader, which I'm not familiar with. I believe it should be possible to use MCUboot and USB DFU for this. To do so, you can use a JLink to flash MCUboot onto the board. Once MCUboot is installed, you won't need the JLink for future firmware updates; you can use USB DFU or Bluetooth DFU to update the firmware via MCUboot. You may want to follow this guide for configuring the application with MCUboot."

What I answered:

"What I want to do it is like this example: "nrfutil dfu serial -pkg merged_dfu_package.zip -p COM10 -p COM10 -B 115200" , where merged_dfu_package.zip it is (MCUBoot and Zephyr application). Is this possible?

Other important point is: Should I need to create a new MBR(Master Boot Record)?"

João, what do you think about my idea?

Regards,

Claudio

RE: "no connect "device in nRF Connect for VSCode

Claudio Rosa — Thu, 26 Sep 2024 11:58:01 GMT

If you take a look, I use to create RAKWireless RAK4631(nRF52840 - list of Zephyr supported board) using nrfutil: "nrfutil.exe dfu serial -pkg rak4631_factory_bootloader.zip -p COM5" where rak4631_factory_bootloader.zip is the RAKWireless bootloader.

What I want to do it is like this example: "nrfutil dfu serial -pkg merged_dfu_package.zip -p COM10 -p COM10 -B 115200" , where merged_dfu_package.zip it is (MCUBoot and Zephyr application). Is this possible?

Other important point is: Should I need to create a new MBR(Master Boot Record)?

Regards,

Claudio

RE: "no connect "device in nRF Connect for VSCode

Menon — Thu, 26 Sep 2024 08:56:59 GMT

Hello,

I am not entirely sure as I haven't worked with the specific board you mentioned. I reviewed the guide you referred to, but it doesn't specify which bootloader is being used. It mentions the RAK4631 bootloader, which I'm not familiar with. I believe it should be possible to use MCUboot and USB DFU for this. To do so, you can use a JLink to flash MCUboot onto the board. Once MCUboot is installed, you won't need the JLink for future firmware updates; you can use USB DFU or Bluetooth DFU to update the firmware via MCUboot. You may want to follow this guide for configuring the application with MCUboot.

Kind regards,
Abhijith

RE: "no connect "device in nRF Connect for VSCode

Claudio Rosa — Tue, 24 Sep 2024 11:13:57 GMT

Hi João,

As you can see, RAK4631 is connected with JLink, after some tests with nrfutil, I think that I have some communication problems between JLink and RAK4631.

I will try to prepare (I have to sold a pin bar ) to try to understand where is the problem.

Is this the only way to flash a build ? I mean with JLink. Could I do it with USB port?

Thank you by your suppor.

Claudio

RE: "no connect "device in nRF Connect for VSCode

Joao Dullius — Tue, 24 Sep 2024 06:55:06 GMT

Hello Claudio,

If you look on RAK4631 (nordicsemi.com), it is stated the following:

"The RAK4631 board shall be connected to a Segger Embedded Debugger Unit J-Link OB. This provides a debug interface to the NRF52840 chip. You can use JLink to communicate with the NRF52840."

So, you'll need to have an external j-link programmer connected to the RAK4631 j-link interface to program your Zephyr based MCUBOOT bootloader in it.

RE: "no connect "device in nRF Connect for VSCode

Claudio Rosa — Mon, 23 Sep 2024 13:17:11 GMT

Sorry, You are correct. I did both because I was not receiving any answer for the first one. If you want we can go with this one and I will close the first one.

RE: "no connect "device in nRF Connect for VSCode

Menon — Mon, 23 Sep 2024 12:53:02 GMT

Hello,

I found a similar case from you, and to me, the issue in both cases appears to be the same. Please let me know if there are any differences. If they are the same, I recommend closing one, as creating two threads for the same issue is not advisable.

Kind Regards,

Abhijith