Hi @domenico_virgil,
I hope you are doing great.
We provide different examples, the one that we provide in our SDK or the Application notes for the Zigbee applications. Pleae look at the document JN-AN-1260 for a better reference.
You are working with the USB Dongle, it doesn't include a way to enter into debug mode, so you have to flash the device using our tool.
You can find the tool in the SDK that you downloaded. You could install the SW.
"\JN5189DK6\tools\JN-SW-4407-DK6-Flash-Programmer\JN-SW-4407 DK6 Production Flash Programmer v2282.exe"
You will find the commands in the next document
"\JN5189_SDKs\Version_2.6.2\JN5189DK6\docs\DK6-UG-3127-Production-Flash-Programmer.pdf"
For the sniffer process, please look at the next link, the get software section. You will download the Wireshark and the Kinetis Protocol Analyzer KPAA software.
Please let me know if you have any further questions.
Regards,
Mario