Answers Database


PPR 5.x: Possible cause of ERROR 9929


Record #2205

Product Family: Software

Product Line: XACT FPGA

Product Part: ppr

Problem Title:
PPR 5.x: Possible cause of ERROR 9929


Problem Description:
Urgency: Standard

General Description:
You may get the following error:

*** PPR: ERROR 9929:
        Clock pins not sourced by global buffers, and/or TBUF input pins
        and/or T pins cannot be completely routed.
        An LCA file will be generated to permit analysis of this problem.
        Possible resolutions are discussed below by load pin type.


Solution 1:

1. Check for clock pins and tbuf's as suggested in the error message. If everything is OK, turn ON x blox optimization.
If you are running the tool from DOS/UNIX prompt, use '-b' option with xmake.
(ex: xmake -p 5204pq100-6 -x -b design_name)

If running Design Manager(windows), do this:
Design -> Implement -> edit Template(Implementation) -> Optimization -> Merge Flip-Flops into I/Os.





End of Record #2205 - Last Modified: 10/27/97 15:56

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