add support for downloadUSDLogfile

[whoenig]

See #348

[whoenig]

Based on the previous implementation without crazyflie-link-cpp. Draft, because this has not been tested on physical hardware, yet.

[danteppc]

install dlusd

[whoenig]

What do you mean @danteppc ?

[danteppc]

What do you mean @danteppc ?

Apologies, this was by mistake

[whoenig]

Tested on hardware. As before, the transfer speed is very low (4082.26 B/s), but this can still be useful in some applications. Note that the slow speed might also be related to the particular firmware implementation.

[danteppc]

I did a few tests, it seems to be working:

read 31674 in 6.6077 s. (4793.5 B/s).
read 205771 in 53.2812 s. (3861.98 B/s).
read 283289 in 73.9767 s. (3829.43 B/s).

but sometimes it stops in the middle, and the drone resets in failure (red led blinks 7 times every 2s)

[whoenig]

This sort of failure would be a firmware bug and should be reported to Bitcraze. Normally, one would be able to see an error message with some details, but that's currently not enabled in downloadUSDLogfile.

[knmcguire]

Hi! If you test this on the latest development branch (master) of the stm firmware, make sure to also update the NRF chip as well to the latest master branchh commit. We noticed some crossplay issues with the latest master of the stm with older versions of the NRF. Or try it with the 2023.06 release for both stm and nrf.