Answers Database

PAR M1.3: baspl:291,292 - pullup could not be placed


Record #2720

Product Family:  Software

Product Line:  Merged Core

Problem Title:
PAR M1.3: baspl:291,292 - pullup could not be placed


Problem Description:
Keywords: PAR, baspl, 291, 292, pullup

Urgency: standard

General Description: PAR gives the following warnings and
errors on a design:
WARNING:baspl:291 - The PULLUP component "<instance_name>" could not be placed.
ERROR:baspl:292 - This is probably due either to lack of resources or to prefere
nce conflicts.


Solution 1:

This error can occur if the Pullup component is used
improperly.  Pullups should only be used on Input Pads,
Open-Drain outputs, and 3-State Outputs.  Pullups can not
be used to drive a logic 1 on other types of signals.  To
drive a logic 1 on other signals, use the VCC symbol.  For
more details about these and other components, please see
the Libraries Guide:

ftp://ftp.xilinx.com/pub/documentation/xactstep6/library.pdf



End of Record #2720