The CAN FD (Controller Area Network with Flexible Data-Rate) analyzer is a tool for real-time monitoring, recording, decoding, analyzing and diagnosing data transmitted on the CAN FD bus, such as the GCAN USBCAN II FD.
The following are the general steps for using the CAN FD analyzer:

I. Preparation
Device connection:
Connect the CAN FD analyzer to the computer through the appropriate interface.
Make sure that the analyzer can be recognized normally by the computer and install the necessary drivers and software.
Software installation and configuration:
Install the software that comes with the analyzer or third-party software that supports the CANFD protocol (such as GCANTOOLS, etc.).
Open the software and make the necessary initial settings, such as selecting the correct device port, baud rate, etc.

II. Parameter configuration
CAN FD parameter settings:
Configure the relevant parameters of CAN FD in the software, including arbitration domain baud rate, data domain baud rate, data frame length, etc.
These parameters should match the network configuration being analyzed to ensure that the data can be captured and parsed correctly.
Trigger settings:
Set trigger conditions as needed, such as data frames with specific IDs, specific data content or time conditions, etc.
Trigger settings help to quickly locate the part of interest in a large amount of data.

Ⅲ. Data Capture and Analysis
Start Capture:
After configuration is complete, start the data capture function and start monitoring the data on the CAN FD bus.
The captured data will be displayed in real time in the software interface, and users can perform real-time analysis or save it for subsequent analysis as needed.
Data Analysis:
Use the functions provided by the software to analyze the data, such as viewing the detailed information of the data frame, analyzing the signal waveform, calculating statistical parameters, etc.
The analysis results can help users diagnose network problems, optimize network performance, or conduct other related research.

Ⅳ. Precautions
Safety:
When using the CAN FD analyzer, ensure that no damage is caused to the network or equipment.
Comply with relevant safety regulations and operating procedures.
Accuracy:
Ensure that the calibration and configuration of the analyzer are accurate to avoid analysis errors caused by equipment problems.
Compatibility:
Check the compatibility of the analyzer with the analyzed network to ensure that the data can be captured and parsed correctly.
Professionalism:
For complex network problems, professional network knowledge and experience may be required for effective analysis and diagnosis.