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AR# 4080

M1.4 Map - FATAL_ERROR:x4kma:x4kmacarry.c:2842:1.122.12.8 - Illegal call to swap

Description

Xilinx Software : Alliance 1.3 on Sun work station.
Third Party Software: Synopsys
Part being targeted : XC4036XL
A case has been seen in M1.4 where a design fails in Map with
the error message:

Optimizing...
FATAL_ERROR:x4kma:x4kmacarry.c:2842:1.122.12.8 - Illegal call to
swap. Cannot move RAM to G because H1 pin is not free: I164/oh_we_reg/$1I13.

Solution

This problem is fixed in the latest M1.4 Core Tools Update
available on the Xilinx Download Area:

Solaris: http://www.xilinx.com/txpatches/pub/swhelp/M1.4_alliance/core_sol17_m14.tar.Z
SunOS http://www.xilinx.com/txpatches/pub/swhelp/M1.4_alliance/core_sun17_m14.tar.Z
HPUX: http://www.xilinx.com/txpatches/pub/swhelp/M1.4_alliance/core_hp17_m14.tar.Z
Win95/NT: http://www.xilinx.com/txpatches/pub/swhelp/M1.4_alliance/core_nt17.zip
AR# 4080
Date Created 06/17/1998
Last Updated 04/03/2000
Status Archive
Type General Article