AR# 14772

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ISE 4.2i ECS - The ECS symbol does not retain the attribute value for "bit_vector" type

Description

Keywords: Generics, ECS, VHDL, schematic, attribute, bit_vector

Urgency: Standard

General Description:
To add a generic (instance attribute) to a VHDL symbol in ECS, I right-click on the symbol, and select Object Properties -> New. I then define the attribute properties by selecting the attribute and clicking on the "Edit Traits" button.

However, if the "Attribute Value Type" is set to "bit_vector", the type will not be retained even though I save the schematic before closing. If I close, then reopen the schematic, the attribute value type will have changed to "integer".

Solution

This problem is fixed in the latest 4.2i Service Pack, available at:
http://support.xilinx.com/support/techsup/sw_updates
The first service pack containing the fix is 4.2i Service Pack 3.
AR# 14772
Date 08/12/2003
Status Archive
Type General Article
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