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SmartRF™ Packet Sniffer is a PC application software that displays and stores RF packets captured by RF hardware node snooping. Supports multiple RF protocols. Packet sniffer filters and decodes packets and finally displays them in a neat way. The filter contains several options and is stored in binary file format. www.bjbjaudio.com

Packet Sniffer is installed separately from SmartRF Studio and must be downloaded from the Texas Instruments website. After installation, all shortcuts that support signaling protocols are displayed under the "Start menu" window. Note: The Packet Sniffer started after selecting the "IEEE802.15.4/ZigBee (CC2420)" protocol is unique. The most prominent difference is: The data packets are only stored in the RAM buffer area. When the packet sniffer is started, the supported protocols are Displayed under the startup window.www.bjbjaudio.com 

data flow
On the PC side the packets will be stored in the disk buffer. The total amount of packets that can be stored depends on the packet size and the size of the hard disk. When the data packets are to be displayed on the Graphical User Interface (GUI), the data packets during the operation will be buffered in the memory buffer to improve the access efficiency. www.bjbjaudio.com

Currently only the CC2520 transceiver supports packet sniffer. The buffer area is only available for system-on-chip (SoC) devices. If the PC application cannot read the packet buffer of the connected device fast enough, the device will prompt an "overflow" error and the data The packet sniffer will display errors on the screen. www.bjbjaudio.com

software
When the sniffer is started, the firmware on the SoC required to run the sniffer will be checked and loaded automatically if needed. This can be seen in the status bar in the lower left corner. The USB controller has the same requirements, but the user will be asked to update and the user has permission to deny the update. under these circumstances,
The sniffer may not be working properly. The following operating systems are supported: Windows 2000/Pro, Windows XP/Pro. www.bjbjaudio.com

Packet Sniffer window
The main window of the packet sniffer is divided into two areas:
• Top: Packet list, showing each field of the decoded packet
• Bottom: Contains 6 tabs
o Settings: Select the evaluation board used, the capacity of the data packet buffer (default 20MB), and the channel for capturing packets
o Domain selection: select the domain to be displayed in the packet list
o Details: Displays additional information about the packet (such as raw data).
o Address table: including all nodes known by the current process. Addresses can be registered automatically or manually, and can be changed or deleted.
o Display Filter: Filter packets based on user-defined filter criteria. The list gives all fields that can be used to define filter conditions. Under this list, fields can be combined with AND and OR operators to define filter conditions.
o Timeline: Displays a long sequence of packets, approximately 20 times the length of the packet list, sorted by source or destination address. www.bjbjaudio.com