UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 32025

10.1 EDK - ERROR:NgdBuild:809 - output pad net 'Bus2IP_BE<0>' has an illegal load

Description

I have an ISE project with an EDK project as a submodule.

The peripheral was created using the Create and Import Peripheral Wizard. After that, I added some ports to the IP core and made them external to the EDK project.

When I run the implementation of the design, NGDBuild gives the following error:

"ERROR:NgdBuild:809 - output pad net 'Bus2IP_BE<0>' has an illegal load"

How do I overcome this error?

Solution

1. Make a copy of "system.make" to "user_system.make".

2. Search for the line where the makefile launches PlatGen.

3. Add a switch -toplevel no to the PlatGen command line.

4. In Project > Project Options, specify the custom makefile field and point to "user_system.make".

AR# 32025
Date Created 02/26/2009
Last Updated 12/15/2012
Status Active
Type General Article