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AR# 9550

3.1i Map, Foundation ISE, 3.4 FPGA Express - ERROR:OldMap:206 - NCD was not produced

Description

Keywords: bufg, map, fpga, express, error, 206, ncd, ise, foundation

Urgency: Standard

General Description:
Express currently writes an IPAD to the netlist when a BUFG is inferred at the
port. However, if the BUFG is instantiated, then the IPAD is not inserted
(contrary to what is shown in FPGA Express' schematic viewer). Schematics
netlisted by ECS contain instantiated BUFG, thus most all schematics
through the express flow will fail in MAP.

解决方案

In Foundation ISE:

1. Right click on 'Implement Design' and select 'Properties ...'
2. Under the 'Translate Options' tab, select 'Create I/O Pads from Ports'
3. Delete the .ngd or .ngo file so that edif2ngd will run again.

These steps will execute the ngdbuild command with the -a swicth turned on.
AR# 9550
创建日期 06/21/2000
Last Updated 08/11/2003
状态 Archive
Type 综合文章