AR# 38455

12.2 Schematic - x74_238 component has an invalid drawing

Description

The X74_283 schematic macro is available for CPLD designs. The symbol can be added and appears OK. However, if a user pushes into the symbol, they will see "Error : Symbol Not Found: add4x2"

Attempting to implement a schematic design containing the X74_283 symbol fails in ngdbuild withan error similar to the following.

ERROR:NgdBuild:604 - logical block 'XLXI_1' with type 'X74_283_MXILINX_mytop'
could not be resolved. A pin name misspelling can cause this, a missing edif
or ngc file, or the misspelling of a type name. Symbol
'X74_283_MXILINX_mytop' is not supported in target 'xa9500xl'

Solution

The add4x2 sub component was removed from the Xilinx libraries. However, the X74_283 component was not updated to correctly use an ADD4 instead of the obsolete ADD4X2.

This drawing error is fixed in ISE Design Suite 12.3.
AR# 38455
Date 05/19/2012
Status Archive
Type Known Issues
Devices More Less
Tools