Answers Database

M1.4 Map - FATAL_ERROR:x4ema:x4emaclb.c:663:1.44:5.2 - Flop in Y found


Record #3381

Product Family:  Software

Product Line:  FPGA Implementation

Problem Title:
M1.4 Map - FATAL_ERROR:x4ema:x4emaclb.c:663:1.44:5.2 - Flop in Y found


Problem Description:
Keywords:  M1.4, Map, fatal, error, x4ema, logic, reduction

Urgency: Standard

General Description:
    Design using Viewlogic targeting 4010E and brought into M1.4.  In MAP, durin
g Optimizing, the following error occurs:
FATAL_ERROR:x4ema:x4emaclb.c:663:1.44:5.2 - Flop in Y found.
Process will terminate.  Please call Xilinx support.
    This design ran through fine in Xact 6.0.1.  The error still occurs with the

latest core_nt patch.


Solution 1:

Resolution 1:
    The workaround is to run MAP with the "-l" option.	This option is
available in the Design Manager GUI under Implement Options.  Click on
Edit Template for Implentation and De-Select Replicate Logic to Allow
Logic Level Reduction.	This Fatal Error was caused because the trimming
step in logic replication has encoutered a fully constrained and packed
CLB.



Solution 2:

A fix for this error is included in the current M1.4 Core
Applications patch available from the Xilinx Download Area:

ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/core_sol14_m14.tar.Z
ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/core_sun14_m14.tar.Z
ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/core_hp14_m14.tar.Z
ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/core_nt14.zip



End of Record #3381