SDC File Overview
Generally, the steps you follow when creating a new SDC file are:
- Create an empty SDC file.
- Add the file to your project. (You can also add multiple files.)
- Have the <project>.pt.sdc and <project>.pt_timing.rpt files ready so you can use them when creating constraints.
- Identify clocks and their relationships.
- Identify I/O constraints.
- Identify any timing exceptions.
- Debug your SDC constraints.
The following sections go over these steps in detail with examples.