Transcription of Quartus II Handbook Volume 2: Design Implementation and ...
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Quartus II Handbook Volume 2: Design Implementation andOptimizationSubscribeSend Innovation DriveSan Jose, CA FeedbackConstraints, sometimes known as assignments or logic options, control the way the Quartus II softwareimplements a Design for an FPGA. Constraints are also central in the way that the TimeQuest TimingAnalyzer and the PowerPlay Power Analyzer inform synthesis, placement, and are several types of constraints: Global Design constraints and software settings, such as device family selection, package type, and pincount. Entity-level constraints, such as logic options and placement assignments.
Before running the TimeQuest timing analyzer, you must specify initial timing constraints that describe the clock characteristics, timing exceptions, and external signal arrival and required times. The Quartus II Fitter optimizes the placement of logic in the device to meet your specified constraints. Related Information About TimeQuest Timing ...
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