Reading Design Constraints - 2023.2 English

Vivado Design Suite User Guide: Dynamic Function eXchange (UG909)

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2023.2 English

New constraints can be applied for each configuration at various points in the flow. If an RM is read in as a DCP, then any constraints stored in the DCP are automatically applied. Additionally, the read_xdc command can be used to apply constraints scoped to the top-level, or to the specific cell (using -cell switch). If constraint are expected to directly or indirectly affect the RM, then the RM must be resolved (not a black box) prior to reading in the new constraints. Otherwise, the constraints may be dropped or not correctly propagated in the constraint system. Because Static is only placed and routed in the initial configuration, all constraints for subsequent configurations (where Static is locked) should be focused strictly on the RP regions being implemented.