I just purchased a Dronecode Probe. I tried connecting to the PX4 System console on a Pixhawk 4 FCU and couldn’t do it. I have never used any JTAG device before, so I’m not entirely sure what to expect. But here’s the behaviour that I observed:
First I followed the instructions on this page: https://kb.zubax.com/pages/viewpage.action?pageId=2195511
After that when I use
cat /dev/ttyACM0 nothing happens. There is absolutely no output and I can just press CTRL+C to quit. Is it supposed to be like this?
Afterwards I followed these instructions: https://kb.zubax.com/display/MAINKB/CLI+client+software
Again nothing happens. I can start picocom and “connect” to the device. At least picocom doesn’t complain about the device not being connected or anything like that. I tried
picocom /dev/ttyACM0 -b 115200 as well as
picocom /dev/ttyACM1 -b 115200. For both commands picocom startet, but except for that nothing is happening. Again I’m not exactly sure what I should expect to happen. I expected that I can use the command shell similarly to the Mavlink Command Shell from QGroundControl.
Can Anyone help me with this?