timing.twr

该源码为xilinx ise教程的附带光盘源码

Asterisk (*) preceding a constraint indicates it was not met.
   This may be due to a setup or hold violation.

------------------------------------------------------------------------------------------------------
  Constraint                                |  Check  | Worst Case |  Best Case | Timing |   Timing   
                                            |         |    Slack   | Achievable | Errors |    Score   
------------------------------------------------------------------------------------------------------
* TS_clk = PERIOD TIMEGRP "clk" 5.59218559  | SETUP   |    -0.061ns|     5.653ns|       2|         103
  ns HIGH 50%                               | HOLD    |     1.456ns|            |       0|           0
------------------------------------------------------------------------------------------------------


1 constraint not met.