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AR# 15740

5.1i Incremental Design - MAP reports more area groups than I created

描述

Keywords: area group, area, group, MAP, incremental design

Urgency: Standard

General Description:
When my design contains TBUFs, multipliers, or block RAMs, MAP reports more area groups than I created. For example, I created four area groups, but MAP reports that six area groups exist.

解决方案

This problem occurs because TBUFs, multipliers, and block RAMs are split into their own separate area groups. For instance, if a single area group is created for a piece of your design that contains slice logic, TBUFs, multipliers, and block RAMs, the area group is split into four separate area groups.

For example:
AREA_GROUP "Logic_Group_A" RANGE = SLICE_X0Y13:SLICE_X9Y0 ;
AREA_GROUP "Logic_Group_A" RANGE = TBUF_X0Y13:TBUF_X8Y0 ;
AREA_GROUP "Logic_Group_A" RANGE = RAMB16_X0Y0:RAMB16_X0Y0 ;
AREA_GROUP "Logic_Group_A" RANGE = MULT18X18_X0Y0:MULT18X18_X0Y0 ;
AR# 15740
日期 01/19/2006
状态 Archive
Type 综合文章
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