Uxrce_dds_client not sending data to my Jetson Nano

PX4 Autopilot
1

PX4 seems to not be sending any data to my uxrce agent on my jetson nano

I have a pixhawk 6c mini as my fc flashed with the latest firmware

My nano is ubuntu 20.04 with ros2 foxy and has the uxrce agent running via MicroXRCEAgent serial --dev /dev/ttyTHS1 -b 921600

my pixhawk is connected via telem2 to the nano GPIO pins 8/10/12

I have disabled mavlink on telem 2 and set uxrce_dds_cfg to telem 2 with the same baud rate as the nano agent 921600

when i run uxrce_dds_client status on in qgc i get no data being sent
uxrce_dds_client: cycle: 0 events, 0us elapsed, 0.00us avg, min 0us max 0us 0.000us rms
uxrce_dds_client: cycle interval: 0 events, 0.00us avg, min 0us max 0us 0.000us rms

the connection is is fine as i am able to get mavros msgs to work just seems to be something up with how uxrce is communicating and not sending any data?

2

Try reading the dmesg command output via MAVLink Console in QGC after a fresh boot. This should give you all of the system log messages and might give you more visibility into what’s going on at boot.

3

@tassalor1233 , which version of MicroXRCEAgent are you using and how did you install it?

4

In my case, it was connected correctly after I set UXRCE_DDS_SYNCT to disable.

5

v2.4.2 Is the version and I did everything that the docs said install wise nothing seems to work. I ended up downgrading to v1.3 for fast RTPS and it works fine.

I also tried on 2 separate FC. Seems the problem may be with the Micro agent on the nano