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AR# 3597

Fatal_error:x3kma:x3kmarmunused.c:120:1.8 remove input sig U9/$Net00047_ from comp U9/$I67 causes empty F func.

Description

Keywords: x3kma, unused, empty.

Urgency : Hot

General Description:
This error was caused by "optimize" creating a logic 1 F function driving a flop when it saw a FDCE with the D pin pulled up to VCC, and an active CLK and CLR signal.

Solution

This problem is fixed in the latest M1.4 Core Tools Patch 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# 3597
Date Created 03/10/1998
Last Updated 04/19/2000
Status Archive
Type General Article