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Synplify 8.6.2: Internal Error in c_ver.exe

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Big Boy

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internal error in c_ver.exe

Hello

I came across a bug in Synplify 8.6.2. When compiling a project, I received:

---------------------------------------------------

#Build: Synplify Pro 8.6.2, Build 013R, Jun 5 2006
#install: C:\Winappl\Electro\FPGA\Synplicity\fpga_862
#OS: Windows XP 5.1
#Hostname: ERIC-AMD

#Sun Aug 19 14:25:20 2007

$ Start of Compile
#Sun Aug 19 14:25:20 2007

Synplicity Verilog Compiler, version 3.6t, Build 206R, built Aug 8 2006
Copyright (C) 1994-2006, Synplicity Inc. All Rights Reserved

@I::"C:\Winappl\Electro\FPGA\Synplicity\fpga_862\lib\xilinx\unisim.v"
@I::"C:\Winappl\Electro\FPGA\Synplicity\fpga_862\bin\..\lib\xilinx\unisim.v"
@I::"C:\WinWork\FPGA\Erix\Erix\rtl\Erix_PS2_Keyboard.v"
@I:"C:\WinWork\FPGA\Erix\Erix\rtl\Erix_PS2_Keyboard.v":".\Erix_timescale.v"
@I::"C:\WinWork\FPGA\Erix\Erix\rtl\Erix_PS2_Dev.v"
@I:"C:\WinWork\FPGA\Erix\Erix\rtl\Erix_PS2_Dev.v":".\Erix_timescale.v"
Verilog syntax check successful!
File C:\WinWork\FPGA\Erix\Erix\rtl\Erix_PS2_Dev.v changed - recompiling
Selecting top level module Erix_PS2_Devices

@E:Internal Error in c_ver.exe
Stack trace
===========
004C67A2

Please call Synplicity Support (USA) at (408) 215-6000 or send
email including this log and test case to support@synplicity.com

---------------------------------------------------

After some while, and some unsuccessful Internet search, I found the problem to be caused by a 'wire' having the same name as a 'localparam'.

...
localparam PS2_KB_ASCII = 8'h03;
...
wire [7:0] PS2_KB_ASCII;
...

Although this was a bug in my code, this is definitively something that Synplicity overlooked, and should give an appropriate error message!

So, if you're having internal error, check for that potential problem...

...and let's hope that this thread get referenced sometime on Google, so that other people googleing for that problem won't spend too much time pulling their hairs :)

Regards

Big Boy
 

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