18.104.22.168. Enabling Glitch Filtering During Power Analysis
The second level of glitch filtering occurs while the Power Analyzer is reading the .vcd generated by a third-party simulator. To enable the second level of glitch filtering, follow these steps:
- In the Intel® Quartus® Prime software, click Assignments > Settings.
- In the Category list, select Power Analyzer Settings.
- Under Input File(s), turn on Perform glitch filtering on VCD files.
The .vcd file reader performs filtering complementary to the filtering performed during simulation and is often not as effective. While the .vcd file reader can remove glitches on logic blocks, the file reader cannot determine how a given glitch affects downstream logic and routing, and may eliminate the impact of the glitch completely. Filtering the glitches during simulation avoids switching downstream routing and logic automatically.
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