UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 47326

13.4 PAR - FATAL_ERROR:Place:PlXil_Uapflow1.c:3213:1.176 - FATAL ERROR DURING FAST FEEDBACK

Description

I run Place and Route (PAR) with the following command:
par w receiver_fpga_top.ncd receiver_fpga_final.ncd receiver_fpga_top.pcf
It fails with the error below:
 

FATAL_ERROR:Place:PlXil_Uapflow1.c:3213:1.176 - FATAL ERROR DURING FAST FEEDBACK

What can I do to resolve this?

Solution

To work around this issue, you can use the -k switch in PAR to resolve the error.

AR# 47326
Date Created 04/18/2012
Last Updated 01/30/2015
Status Active
Type Known Issues
Devices
  • Spartan-3A DSP
Tools
  • ISE Design Suite - 13.4