1.2.2. Guidelines for Time Constraints
For best results, use real time requirements. Applying more demanding timing requirements than the design needs can cause the Compiler to trade off by increasing resource usage, power utilization, or compilation time.
Comprehensive timing requirement settings achieve the best results for the following reasons:
- Correct timing assignments enable the software to work hardest to optimize the performance of the timing-critical parts of the design and make trade-offs for performance. This optimization can also save area or power utilization in non-critical parts of the design.
- If enabled, the Intel® Quartus® Prime software performs physical synthesis optimizations based on timing requirements.
- Depending on the Fitter Effort setting, the Fitter can reduce runtime if the design meets the timing requirements.
The Intel® Quartus® Prime Timing Analyzer determines if the design implementation meets the timing requirement. The Compilation Report shows whether the design meets the timing requirements, while the timing analysis reporting commands provide detailed information about the timing paths.
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