Zigbee CLI communication failure

[DaKa]

Hello,

I am able to use the Zigbee CLI Agent and send some commands. I am using the zb-cli-wrapper python package to send commands from python. I wrote an application that configures the module as a zigbee coordinator. If it is already configured as such, that means if the zigbee stack is already running, I just connect the cli with bdb start command (so it will not create a new network). Then, when nodes join the network, I retrieve some information using simple descriptor command. Once I have all the informations about the network, I want to be able to control and monitor the nodes.

But for some reason that I don't understand, after sending some commands to the CLI, the communication stops working. I can not communicate with the CLI until I reset the module. What could be the issue? Do you think that I am sending commands too fast? Because when I send commands manually using Minicom, it never crashes or hangs.

Best regards,

Damien

[Marjeris Romero]

Hi,

Do you think that I am sending commands too fast?

I don't think this should be a problem.

What SDK version are you using? Can you post the python script you are using?

[DaKa]

Hi,

I still struggle to find the issue. I am not sure but maybe something goes wrong with threading. The memory is locked by the cli device thread when it handles a new line. But when sending a command using the write methods, the memory is never locked. Could that be that because it is not locked, it mixes stuff and sends a wrong command? I am not in ease with threading so... it is a bit hard for me to understand exactly how it works.

BR,
Damien

[Marjeris Romero]

Hi Damien,

Sorry for the late reply. It's a little bit difficult for me to guess what is going wrong here without more information. Could you please attach:

• Your python script (or a modified version of the script that generates the same behavior, you don't need to include all functionality in your application, just enough so I can reproduce the issue).

This way I can reproduce and debug at my end and be able to help you.

Best regards,

Marjeris

[DaKa]

Hi,

I am actually not using zb-cli-wrapper anymore. I wrote my own serial python module to interface with the BMD340 module. I still work on it so it is a bit hard to say if the problem is there still. I will let you know if the same behavior shows up when I will be able to test it.

Best regards,
Damien

[DaKa]

Hello Marjeris,

I wrote a little python example script that you can run to check if you get the same issue than me. How can I send it to you? I actually need to send you the python package I made in order to make the script work but it is private.

BR,
Damien

[Marjeris Romero]

Hi,

Sorry for the late reply. We are in the middle of vacation season here in Norway. You can create a private ticket here in Devzone and send your code for review to us.

Best regards,

Marjeris