感觉很合理啊,每次sroute就会卡住很长时间,然后挂掉。挂前提示
**WARN: (IMPSR-1254): Cannot find any block pin of net VSS. Check netlist, or change option to include the pin.
**WARN: (IMPSR-1256): Cannot find any CORE class pad pin of net VSS. Change routing area or layer to include the expected pin, or check netlist, or change port class in the technology file.