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AR# 20968

7.1 NGDBuild - LOC Constraints on lower level block RAM components (x1) are not getting passed to the pcf

Description

Keywords: PCF, UCF, BRAM, constraint, ignored

Urgency: Standard

General Description:
I put LOC constraints on lower-level components (x1) of x2 or x4 block RAM in the ucf, but these constraints do not appear in the pcf. These constraints should be applied to the higher-level block RAM.

Solution

To work around this issue, constraint the x2 or x4 components and let the tools apply them to the lower level. This will be acknowledged in the physical constraints file.
AR# 20968
Date 02/21/2007
Status Archive
Type General Article