nRF5 SDK for Mesh v2.2.0: SDK and SD compatibility?

RE: nRF5 SDK for Mesh v2.2.0: SDK and SD compatibility?

AndreasF — Wed, 19 Jun 2019 10:26:04 GMT

Hi again.

Speed of DFU over mesh:
Mesh networks are not designed to transfer a large number of packets in short intervals. It may choke the network bandwidth and bring down the performance of the whole network. Therefore, DFU over mesh is deliberately slow. You can try to get bit more performance by reducing the interval specified to nrfutil program. For example to use 300 ms interval (instead of default 500 ms):
nrfutil dfu serial -i 300 -pkg dfu_test.zip -p <COM port> -b 115200 -fc --mesh

Reliability of DFU over mesh:
Currently, we don't have any plans for updating existing DFU over mesh protocol. The suggestion of improving the speed is noted by the development team.

Best regards,

Andreas

RE: nRF5 SDK for Mesh v2.2.0: SDK and SD compatibility?

ti_me1 — Wed, 19 Jun 2019 07:57:41 GMT

Hi Andreas

Yes, at the moment we are forced to use the nRF 15.2 SDK DFU because the nRF Mesh 3.1.0 DFU is too slow when loading several hundreds of KB. We run the buttonless DFU service in parallel to Bluetooth Mesh.

Is Nordic working on any improvements for speed and reliability of DFU over mesh?

best regards

RE: nRF5 SDK for Mesh v2.2.0: SDK and SD compatibility?

AndreasF — Wed, 19 Jun 2019 07:35:27 GMT

Hi again.

I did not get any notifications for this follow up question, sorry.

It could be possible to implement SDK 15.3, but I think you have to change some parts of the API in order to make it match, since it is not API compatible. I have not tried this myself.

You are looking at implementing the nRF 15.3 SDK DFU module instead of the proprietary nRF Mesh 3.1.0 DFU?

Best regards,

Andreas

RE: nRF5 SDK for Mesh v2.2.0: SDK and SD compatibility?

ti_me1 — Wed, 12 Jun 2019 10:05:09 GMT

[quote userid="4846" url="~/f/nordic-q-a/39143/nrf5-sdk-for-mesh-v2-2-0-sdk-and-sd-compatibility/190962"]If I need e.g. a new DFU feature from the latest SDK, do you still advise against using the latest SDK v15.3.0 together with the Mesh SDK v3.1.0 ?[/quote]

Hello, can anyone help by answering this question? Thank you.

RE: nRF5 SDK for Mesh v2.2.0: SDK and SD compatibility?

ti_me1 — Wed, 05 Jun 2019 06:43:48 GMT

Hi Andreas

Thank you for your response. The same situation again. The Mesh SDK v3.1.0 requires SDK v15.2.0 which is not the latest version.

If I need e.g. a new DFU feature from the latest SDK, do you still advise against using the latest SDK v15.3.0 together with the Mesh SDK v3.1.0 ?

Regards

RE: nRF5 SDK for Mesh v2.2.0: SDK and SD compatibility?

awneil — Thu, 18 Oct 2018 18:45:55 GMT

I just had the exact same question!

Please could the Infocentre page be updated to be clear that it does have to be exactly v15.0.0 - not earlier and not later!

RE: nRF5 SDK for Mesh v2.2.0: SDK and SD compatibility?

AndreasF — Wed, 03 Oct 2018 12:39:30 GMT

Hi Timon.

The latest SDK v15.2.0 and SoftDevice v6.1.0 is not compatible with Mesh SDK v2.2.0.

You have to use SDK v15.0.0 and SoftDevice v6.0.0 for Mesh SDK v2.2.0.

- Andreas