Slow dfu throughput in nRF Connect Desktop

RE: Slow dfu throughput in nRF Connect Desktop

mrono — Wed, 03 Nov 2021 09:44:06 GMT

[quote userid="103347" url="~/f/nordic-q-a/81230/slow-dfu-throughput-in-nrf-connect-desktop/337210#337210"]Windows should be faster, and even more so with the new pc-ble-driver release[/quote]

I just tried this. I got about 4kB/s earlier, and now around 5-6kB/s. So the new release is faster.

[quote userid="108060" url="~/f/nordic-q-a/81230/slow-dfu-throughput-in-nrf-connect-desktop/337215#337215"]it used to be faster, sadly I don't remember which versions I used before[/quote]

I seem to recall that when SDK 15 was new I got around 8 kB/s. Then a new version came out that halved the speed.

[quote userid="108060" url="~/f/nordic-q-a/81230/slow-dfu-throughput-in-nrf-connect-desktop/337215#337215"]I'll definitely have a look at pc-nrfutil, thanks for the tip![/quote]

Doing dfu from command line with nrfutil used to be much slower than with nRF Connect for Desktop. I think the latest update sometime last summer got the speed roughly up to the same ballpark.

If you can automate a manual process then you might get a speedup with nrfutil. But the actual DFU speed should not be faster.

RE: Slow dfu throughput in nRF Connect Desktop

Totto — Wed, 03 Nov 2021 09:26:45 GMT

Hi Elfving, luckily I don't have any Windows OS available ^^

It's weird that it used to be faster, sadly I don't remember which versions I used before.

I'll definitely have a look at pc-nrfutil, thanks for the tip!

Best regards

Totto

RE: Slow dfu throughput in nRF Connect Desktop

Elfving — Wed, 03 Nov 2021 09:15:23 GMT

Hey again Totto!

In any case Windows should be faster, and even more so with the new pc-ble-driver release. This new release sadly won't affect the speeds on MacOS however.

If the issue mainly is the amount of DFUs to go through, I would recommend you to take a look at pc-nrfutil instead. You might be able to automate the process using a shell script.

Best regards,

Elfving

RE: Slow dfu throughput in nRF Connect Desktop

Elfving — Mon, 01 Nov 2021 12:46:32 GMT

Hey Totto!

What SDK version is the bootloader based on?

Best regards,

Elfving