Answers Database
2.1i XC4000XL PAR - Guided par of XC4000XL device does not work in 2.1i Service Pack 1 or 2.
Record #7938
Product Family: Software
Product Line: FPGA Implementation
Product Part: par
Product Version: 2.1i
Problem Title:
2.1i XC4000XL PAR - Guided par of XC4000XL device does not work in 2.1i Service Pack 1 or 2.
Problem Description:
Urgency: Standard
General Description:
PAR is unable to guide a 4000XL design in Cs1 or Cs2. It fails with
the following errors, even though the clock networks are identical
and there are no prohibits in the .pcf file.
ERROR:Place:489 - The clock group consisting of the following components is
impossible to legally place, as all of the site sets that could hold this
configuration contain a prohibited site that this group requires. Please
consult the Xilinx Programmable Logic Data Book for more information on clock
buffers.
<I_178, CLOCK>
ERROR:Place:489 - The clock group consisting of the following components is
impossible to legally place, as all of the site sets that could hold this
configuration contain a prohibited site that this group requires. Please
consult the Xilinx Programmable Logic Data Book for more information on clock
buffers.
<I_95, WR_CLOCK>
Solution 1:
This problem is fixed in the latest 2.1i Service Pack available at:
http://support.xilinx.com/support/techsup/sw_updates/
End of Record #7938 - Last Modified: 01/25/00 16:11 |
