Open Trace Summary Using Time Window - Open Trace Summary Using Time Window - 2026.1 English - UG1702

To open the VCD Trace Summary view, use the time window selection utility provided in the Vitis Analysis view. Use the vcdanalyze utility to extract and analyze a specific time window from a full VCD trace. When you run the AI Engine simulator with VCD enabled, open the Trace view as follows.

Open the Run Summary using vitis_analyzer command or upload the AI Engine run summary. The command is vitis_analyzer <default.aierun_summary>

Figure 1. Open Trace Summary Using Time Window

Upon opening the summary and clicking on the Trace view, the time window appears to make a selection and specify start time and the end time. By default, full VCD trace time line can be seen in the Analysis view.

• To go with the default, click OK to proceed. This runs vcdanalyze that processes full VCD and displays the trace waveform.
  Figure 2. VCD Analyze
  
  
  
• To get the desired trace for a particular time duration, click SET A TIME WINDOW and specify Start Time and End Time to proceed. vcdanalyze runs and processes a part of the VCD based on the time window you specified. The trace waveform displays as a result.
  Figure 3. Process Waveform Data
  
  
  Figure 4. Wavefrom Display from 800 ns to 2000 ns