RAK 4631 over the air update

Alangward · May 7, 2023, 8:44am

I guessed that was the case. I use the ‘two bank’ mechanism on our Linux systems. There is a single atomic update on the boot sector to switch load sets- and you can always go back if you need to.
I assume the FUOTA supporting devices use the 2-bank mechanism?

Thank
Alan

Crichton · May 7, 2023, 7:53pm

This is something I’ve posted about a couple times. Any plans to update the bootloader to fix the issue and restore compatibility with latest versions of nRF Connect/DFU apps?

beegee · May 8, 2023, 3:16am

At the moment none of our modules support FUOTA, so we do not have the 2-bank implementation. Specially on MCU with small flash, like the RAK3172, the 2-bank implementation is not possible, there is not enough Flash available.

beegee · May 8, 2023, 3:17am

No, we don’t have plans to update the bootloader at the moment.

The bootloader is open source ==> WisBlock/bootloader/RAK4630 at master · RAKWireless/WisBlock · GitHub

Looking forward to merge your pull-request.

Crichton · May 9, 2023, 8:16pm

Submitted!

Thanks @beegee

beegee · May 10, 2023, 1:53am

Thanks. Will check it.

Crichton · May 18, 2023, 9:28pm

@beegee Submitted this last week, appreciate if you could take a look when you get a chance. Thanks!

github.com/RAKWireless/WisBlock

Set the default max MTU size within the DFU transport to 23

RAKWireless:master ← rcarteraz:master

opened 08:16PM - 09 May 23 UTC

rcarteraz

+2 -2

This is a copy of a fix that was applied to the Adafruit boot loader to resolve …an issue with OTAs not working with latest Nordic-DFU-Library. See: https://github.com/adafruit/Adafruit_nRF52_Bootloader/pull/293 which was used to resolve https://github.com/adafruit/Adafruit_nRF52_Bootloader/issues/287 and https://github.com/adafruit/Adafruit_nRF52_Bootloader/issues/269 The RAK bootloader is dealing with the same issues, attempting to do a BLE OTA (with android) will result in it being stuck at 100% the only current work around to this is to use extremely outdated versions of Nordic nRF Connect/DFU which isn't ideal.

beegee · May 19, 2023, 1:50am

Checked when you submitted, looks ok.
But I have no free resources to build a test version.

beegee · May 20, 2023, 10:00am

Anyone here who can test a new bootloader with iOS, please contact me.
I tested on Android and it seems to work now.

Alangward · May 20, 2023, 11:57am

I can test it.
Where do I find it?

Alan

beegee · May 20, 2023, 12:10pm

@Alangward
I sent you a PM

Alangward · May 20, 2023, 3:47pm

I’ll try and test it tomorrow.

Thanks

Alan Ward
07508 935833

Alangward · May 21, 2023, 8:02am

Hi Bernd

I tested it. It failed, unfortunately.

The 2 steps ‘Bootloader enabled’ and ‘DFU initialized’ worked OK.

The third step ‘Firmware upload’ started, but failed almost instantly.

Alan

beegee · May 22, 2023, 2:07am

Thanks for trying.
Two other testers on iOS found that you have to change the PRN settings on iOS:
a) enable PRN
b) set the number of packets to something like 10 or less

Alangward · May 22, 2023, 9:18am

I don’t understand the reference to PRN settings and it doesn’t appear if I search for it?

beegee · May 22, 2023, 9:56am

On Android nRF Connect
Menu bar on left ==> Settings ==> nRF5 DFU Options

carlrowan · May 22, 2023, 10:05am

Hi @Alangward ,

The nRF Connect in iOS seems not to allow you to change PRN settings. You should use nRF Device Firmware Update APP (you can change PRN settings here).

Alangward · May 22, 2023, 10:19am

Hi @carlrowan

Yes, I’m already using that app and have found the setting.

Thanks

Alangward · May 22, 2023, 10:50am

I now have it working after changing the PRN setting as advised. Thanks.
Presumably there will now be a formal release of this version?

Alan

beegee · May 22, 2023, 11:25am

Hi Alan,

We will release the new bootloader in our WisBlock repo and in our Download Center.
Update in production will take some time because of the existing stock.