[Milkymist-devel] Lastest sbapshot. Timing constraint not met

[Uwe Bonnes]

Hello,

trying to get an overview on FPGA resource requirement, I downloaded the
snapshot milkymist-20090709.tar.bz2, and started build_bitstream.sh in
milkymist/milkymist-core. Reading synthesis.log, I see:
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   
---------------------------------------------------------------------------
* TSclkin = PERIOD TIMEGRP "clkin" 10 ns HI | SETUP   |    -0.511ns|
  10.511ns|      11|        2720

Toolchain used is ISE 10.1. Is this expected outcome? Any special things
needed?

Bye 
-- 
Uwe Bonnes                bon at elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------