Pymavlink "BAD_DATA" error with companion computer

ArduCopter
, ,
1

Hi
first of all, I should say I’m beginner at pymavlink and don’t know about it errors.

I Used pymavlink with my ORIN NX to connect my CUAV Autopilot.
It can detect Heartbeat but after this, gives “BAD_DATA” error.
first I used this config :
SERIAL2_PROTOCOL = 2
SERIAL2_BAUD = 57

after that config doesn’t work I try with 115 baud and still not working.
Then I try with SERIAL2_PROTOCOL = 1 , with 57 and 115 baud but still gives me “BAD_DATA” error.

I attached my code and terminal outputs photos.

Screenshot from 2023-10-12 13-34-15
Screenshot from 2023-10-12 13-34-151920×1080 269 KB

Screenshot from 2023-10-12 14-24-06
Screenshot from 2023-10-12 14-24-061920×1080 290 KB

Screenshot from 2023-10-12 14-24-11
Screenshot from 2023-10-12 14-24-111920×1080 325 KB

Can anyone help me?
@amilcarlucas @ppoirier @rmackay9

Regards, Joe

2

Hello

THS0 implementation is shitty, I suggest you connect to a FTDI dongle (USB0)

3

thank you for your reply.
I haven’t FTDI, but also tried with USB to TTL, convertor and I have same problem.

4

You have connected Ground-Tx -Rx between CC and FC ?

5

Yes.
And also manually disable flow control for serial2 in full parameter list.

6

Try installing mavproxy on ORIN and test connexion using mavproxy console just to make sure this is not a hardware issue.

7

As you said, I install mavproxy and test with that.
But I have “link 1 down” error!

I use HIL firmware for test some commands. Does this affect the result?

8

Looks like you have conflicting apps accessing the port

If you work with USB dongle it should cause no issue
Otherwise you may have not disabled the console to THS0