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AR# 4194

1.5 4KXL PAR- PAR will not utilize "lone" OFFSET constraints

Description

Keywords: PAR, Timing, TRCE, OFFSET, Constraints, Analysis

Urgency: Standard

General Description: If the only constraints in a .ucf or .pcf are "TIMEGRP OFFSET" (no PERIOD, FROM TO, etc...) PAR doesn't invoke timing-driven operation. If the .ucf or .pcf contains a PERIOD, FROM TO, etc... the OFFSETs are then reported at the timing summary given at the end of the PAR job. TRCE always reports correctly, so this behavior seems to be unique to PAR.

解决方案

This is only related to PAR. TRCE works correctly.

This problem was fixed in the 1.5i release.
AR# 4194
创建日期 08/31/2007
Last Updated 10/21/2008
状态 Archive
Type 综合文章