PAR: Xilinx Place And Route M1.5.20. Copyright (c) 1995-1998 Xilinx, Inc. All rights reserved. Wed Oct 07 11:15:17 1998 par -ol 4 -k -p -w -i 10 -c 1 -d 0 bdes.ncd bdes.ncd bdes.pcf Constraints file: bdes.pcf Loading device database for application par from file "bdes.ncd". "bdes" is an NCD, version 2.27, device xc4010xl, package pq208, speed -1 Loading device for application par from file '4010xl.nph' in environment C:/fndtn. Device speed data version: x1_0.37 1.22 FINAL. Device utilization summary: Number of External IOBs 103 out of 160 64% Flops: 0 Latches: 0 Number of Global Buffer IOBs 2 out of 8 25% Flops: 0 Latches: 0 Number of CLBs 350 out of 400 87% Total Latches: 0 out of 800 0% Total CLB Flops: 441 out of 800 55% 4 input LUTs: 657 out of 800 82% 3 input LUTs: 153 out of 400 38% Number of BUFGLSs 2 out of 8 25% Overall effort level (-ol): 4 (set by user) Router effort level (-rl): 4 (default) Timing method (-kpaths|-dfs): -kpaths (default) Starting initial Timing Analysis. REAL time: 12 secs Finished initial Timing Analysis. REAL time: 18 secs 3402 connection(s) routed; 0 unrouted. Starting router resource preassignment Completed router resource preassignment. REAL time: 33 secs Improving timing. End of iteration 1 3402 successful; 0 unrouted; (16051) REAL time: 2 mins 41 secs WARNING:basrt:188 - Routing for this placement can not meet all timing constraints. It may have as many as 5 timing errors. Routing PWR/GND nets. Power and ground nets completely routed. End of iteration 2 3402 successful; 0 unrouted; (17810) REAL time: 6 mins 12 secs End of iteration 3 3402 successful; 0 unrouted; (17977) REAL time: 9 mins 46 secs End of iteration 4 3402 successful; 0 unrouted; (17651) REAL time: 13 mins End of iteration 5 3402 successful; 0 unrouted; (17714) REAL time: 16 mins 16 secs End of iteration 6 3402 successful; 0 unrouted; (17714) REAL time: 19 mins 43 secs End of iteration 7 3402 successful; 0 unrouted; (17714) REAL time: 22 mins 53 secs End of iteration 8 3402 successful; 0 unrouted; (17406) REAL time: 25 mins 9 secs End of iteration 9 3402 successful; 0 unrouted; (17594) REAL time: 29 mins 1 secs End of iteration 10 3402 successful; 0 unrouted; (17147) REAL time: 32 mins 21 secs Writing design to file "bdes.ncd". Starting cleanup WARNING:basrt:188 - Routing for this placement can not meet all timing constraints. It may have as many as 5 timing errors. Improving routing. End of cleanup iteration 1 3402 successful; 0 unrouted; (16902) REAL time: 33 mins 53 secs Writing design to file "bdes.ncd". Total REAL time: 33 mins 53 secs Total CPU time: 33 mins 48 secs End of route. 3402 routed (100.00%); 0 unrouted. No errors found. Completely routed. The design submitted for place and route did not meet the specified timing requirements. Please use the static timing analysis tools (TRCE or Timing Analyzer) to report which constraints were not met. To obtain a better result, you may try the following: * Use the Re-entrant routing feature to run more router iterations on the design. * Check the timing constraints to make sure the design is not over-constrained. * Specify a higher placer effort level, if possible. * Specify a higher router effort level. * Use the Multi-Pass PAR (MPPR) feature. This generates multiple placement trials from which the best (i.e., lowest design score) placement can be used with re-entrant routing to obtain a better result. Please consult the Development System Reference Guide for more detailed information about the usage options pertaining to these features. Total REAL time to Router completion: 33 mins 57 secs Total CPU time to Router completion: 33 mins 51 secs Generating PAR statistics. The Delay Summary Report The Score for this design is: 10073 The Number of signals not completely routed for this design is: 0 The Average Connection Delay for this design is: 3.933 ns The Average Connection Delay on critical nets is: 0.000 ns The Average Clock Skew for this design is: 0.186 ns The Maximum Pin Delay is: 27.422 ns The Average Connection Delay on the 10 Worst Nets is: 17.097 ns Listing Pin Delays by value: (ns) d <= 10 < d <= 20 < d <= 30 < d <= 40 < d <= 50 d > 50 --------- --------- --------- --------- --------- --------- 3267 125 10 0 0 0 Timing Score: 16902 WARNING:baspw:101 - Timing constraints have not been met. Asterisk (*) preceding a constraint indicates it was not met. -------------------------------------------------------------------------------- Constraint | Requested | Actual | Logic | | | Levels -------------------------------------------------------------------------------- * TS_01 = PERIOD TIMEGRP "clk" 20 nS HIG | 20.000ns | 25.789ns | 8 H 50.000 % | | | -------------------------------------------------------------------------------- 1 constraint not met. Writing design to file "bdes.ncd". All signals are completely routed. Total REAL time to PAR completion: 34 mins 6 secs Total CPU time to PAR completion: 33 mins 59 secs PAR done.