time_sim.alf

实用的程序代码

Loading device database for application ngdanno from file "use_gsr.ncd".
   "use_gsr" is an NCD, version 2.27, device xc4005e, package pc84, speed -2
Loading device for application ngdanno from file '4005e.nph' in environment
/home/zeppelin2/tech_apps/m1_4.12.
Loading constraints from file "use_gsr.pcf"...
Reading .ngm file "map.ngm"...
Building NGA image...
Annotating NGA image...
Distributing delays...
Reading component libraries for design expansion...
WARNING:basna:22 - NGDANNO found physical components for which 100 percent
   back-annotation is not possible.  (These components are listed below.)  Some
   reasons these components may not be fully back-annotatable include:
   

1. The logic was replicated during physical mapping.
   

2. MAP was directed to optimize the logic through use of the -oe or -os
   option, or the OPTIMIZE or OPT_EFFORT design attribute.
   

3. The component's configuration implies a more complex delay model than can
   be accurately represented in the original design logic.  An example of such a
   configuration is an XC4000-family CLB containing both carry logic and
   multiple flip-flops.
   

Simulation models for the following components will be constructed from the
   NCD netlist.  Signal names buried within these components will be lost.
   n257
   n261
Writing .nga file "time_sim.nga"...
   13 logical models annotated
   2 physical models annotated