More specific constraints file
Clocks
NET CLK TNM=CLK;
NET CLK2 TNM=CLK2;
TIMESPEC TS_CLK01=PERIOD CLK 40;
TIMESPEC TS_CLK02=PERIOD CLK2 50;
Ignore paths between 2 async clocks
TIMESPEC TS_TIG1=FROM:CLK:TO:CLK2:TIG;
TIMESPEC TS_TIG2=FROM:CLK2:TO:CLK:TIG;
Generic path to outputs
TIMESPEC TS_IO1=FROM:FFS:TO:PADS:20;
Two cycle path to slow outputs
TIMESPEC TS_IO2=FROM:FFS:TO:PADS(SLOW*):TS_IO1*2;