18.104.22.168. Synopsys* Design Constraint (SDC) on RTL
SDC-on-RTL supports SDC files written using SDC 2.1-compliant SDC commands and can support general Tcl code that the Tcl console can parse. These SDC files target your design netlist, allowing you to target hierarchical ports
- Currently, the Intel® Quartus® Prime software Tcl console does not support sdc_ext Tcl packages, but they are still supported in the Timing Analyzer Tcl console.
- Intel® Quartus® Prime software GUI-based constraint authoring is currently disabled for SDC-on-RTL SDC files and .sdc files with RTL_SDC_FILE assignments.
- Issues, such as incorrect options or other syntax errors, found in the SDC-on-RTL SDC files are posted as warnings in the Intel® Quartus® Prime software GUI and message console.
For more information about how to manage SDC-on-RTL SDC files, refer to the following topics: