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1.3.2.1. Using Simulation Signal Activity Data in Power Analysis
1.3.2.2. Signal Activities from RTL (Functional) Simulation, Supplemented by Vectorless Estimation
1.3.2.3. Signal Activities from Vectorless Estimation and User-Supplied Input Pin Activities
1.3.2.4. Signal Activities from User Defaults Only
1.5.1. Complete Design Simulation Power Analysis Flow
1.5.2. Modular Design Simulation Power Analysis Flow
1.5.3. Multiple Simulation Power Analysis Flow
1.5.4. Overlapping Simulation Power Analysis Flow
1.5.5. Partial Design Simulation Power Analysis Flow
1.5.6. Vectorless Estimation Power Analysis Flow
2.4.1. Clock Power Management
2.4.2. Pipelining and Retiming
2.4.3. Architectural Optimization
2.4.4. I/O Power Guidelines
2.4.5. Dynamically Controlled On-Chip Terminations (OCT)
2.4.6. Memory Optimization (M20K/MLAB)
2.4.7. DDR Memory Controller Settings
2.4.8. DSP Implementation
2.4.9. Reducing High-Speed Tile (HST) Usage
2.4.10. Unused Transceiver Channels
2.4.11. Periphery Power reduction XCVR Settings
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1.5.5.1. Specifying Start and End Time for Signal Activity Calculations
To specify a start and end time for signal activity calculations using the Limit VCD period option, follow these steps:
- In the Intel® Quartus® Prime software, click Assignments > Settings.
- Under the Category list, click Power Analyzer Settings.
- Turn on the Use input file(s) to initialize toggle rates and static probabilities during power analysis option.
- Click Add.
- In the File name and Entity fields, browse to the necessary files.
- Under Simulation period, turn on VCD file and Limit VCD period options.
- In the Start time and End time fields, specify the desired start and end time.
- Click OK.
You can also use the following Tcl or .qsf assignment to specify .vcd files:
set_global_assignment -name POWER_INPUT_FILE_NAME "test.vcd" -section_id test.vcd
set_global_assignment -name POWER_VCD_FILE_START_TIME "10 ns" -section_id test.vcd
set_global_assignment -name POWER_VCD_FILE_END_TIME "1000 ns" -section_id test.vcd
set_instance_assignment -name POWER_READ_INPUT_FILE test.vcd -to test_design