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AR# 4082

M1.4 Map - Input signal driving two paths is corrupted.

Description

Input net B1 drives both ILFFX and combinational path (B2).
The resulting implementation is corrupted as B2 is driven by
a latch. Maps ok in M1.5.

(B1) (B2)
IPAD --------- IBUF ----------------- I1
|
|________ ILFFX _________ I2

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# 4082
Date Created 06/17/1998
Last Updated 04/03/2000
Status Archive
Type General Article