timing.twr

来自「simple thermometr in vhdl」· TWR 代码 · 共 33 行

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   
------------------------------------------------------------------------------------------------------
  Autotimespec constraint for clock net clk | SETUP   |         N/A|    13.181ns|     N/A|           0
                                            | HOLD    |     2.823ns|            |       0|           0
------------------------------------------------------------------------------------------------------
  Autotimespec constraint for clock net XLX | SETUP   |         N/A|     8.126ns|     N/A|           0
  I_24/XLXI_4/ow_master_i/jcnt2/qi<9>       | HOLD    |     2.286ns|            |       0|           0
------------------------------------------------------------------------------------------------------
  Autotimespec constraint for clock net clk | SETUP   |         N/A|     5.757ns|     N/A|           0
  88_BUFGP                                  | HOLD    |     2.461ns|            |       0|           0
------------------------------------------------------------------------------------------------------
  Autotimespec constraint for clock net XLX | SETUP   |         N/A|    10.255ns|     N/A|           0
  I_24/XLXI_4/clkdivider/clk_gen            | HOLD    |     1.147ns|            |       0|           0
------------------------------------------------------------------------------------------------------
  Autotimespec constraint for clock net XLX | SETUP   |         N/A|     9.542ns|     N/A|           0
  I_23/XLXI_2/end_l                         | HOLD    |     2.976ns|            |       0|           0
------------------------------------------------------------------------------------------------------
  Autotimespec constraint for clock net XLX | SETUP   |         N/A|    17.428ns|     N/A|          81
  I_24/XLXI_8/cont<20>                      | HOLD    |    11.117ns|            |       0|           0
------------------------------------------------------------------------------------------------------


1 constraint not met.
INFO:Timing:2761 - N/A entries in the Constraints list may indicate that the 
   constraint does not cover any paths or that it has no requested value.