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AR# 29546

9.xi XST - "ERROR:Xst:2544 - Unsupported item in port list for module"

Description

When I run XST, I get the following error message. Why?

"ERROR:Xst:2544 - Unsupported item in port list for module."

Solution

XST does not accept bus bounds in Verilog module declaration.

For example, this error occurs when the code is written as shown below

module example (clk, datain[3:0], rst, dataout[3:0]);

input clk;

input [3:0] datain;

input rst;

output [3:0] dataout;

This issue is fixed in ISE 9.1i.

AR# 29546
Date Created 10/28/2007
Last Updated 12/15/2012
Status Active
Type General Article