The NRF52840 seems to not receive response from Green Power endpoints.

[c.tessierpiart]

Hi,

I am currently using a NRF52840 dongle with the python wrapper for the zigbee library.

When I send a Discover Attribute to a Green Power cluster in a Green Power Endpoint, it seems that the dongle does not receive any response from the device. I know the device send a response because I can see the frame with WireShark but the Wrapper seems to ignore it and sens a Request Timeout.

The command I use is the following : 

zcl cmd -w -d {ieee_addr} 242 21 -p A1E0 C -l 0000ff

Thanks for your help.

[Marjeris Romero]

Hi,

Do you have a sniffer trace you can share? Does the command packet you are sending look correct in the sniffer trace?

[c.tessierpiart]

Using Wireshark, the sniffer manage to capture the command frame : 

Then the selected device send to the dongle this response : 

The frame is here but it seems the dongle doesn't see it. To be a bit precise, I did not touch the GP feature of the dongle's firmware.

[Marjeris Romero]

Hi,

You may need to intercept this command response if you want to do more processing to the discover attribute response. From what I see on the ZCL specification there is not much to expect from the stack handling when the Discover attribute response is received:

Take a look at the documentation on "Executing interception mechanism" on the infocenter for more information on how to intercept ZCL packets.

Best regards,

Marjeris

[c.tessierpiart]

Hi,

The thing is that I can intercept any kind of data frame just fine but I can't intercept anything when I send any command with the Green Power Profile.

[Marjeris Romero]

Can you share with us the code you are using for intercepting these frames?