Assigning Pin Numbers in Block Diagram Editor

Description

How do I assign device specific pin numbers to the I/O ports using the block diagram editor? I want the pin numbers to show-up on my schematics.

Solution

In order for it to work, you need to add attribute declarations (in addition to attribute specification) to the block diagram.

Please follow these steps:

1. Select Diagram | VHDL | Declaration for an Entity from the main menu (there is a button on the toolbar as well). Place the Entity Declaration anywhere on the diagram.

2. Inside the Entity Declaration type: attribute LOC: string;

3. Save the file and compile it. The errors should disappear.