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AR# 19051

8.1 Ngdbuild - Upper case extension UCF files are not being recognized

描述

Keywords : IOSTANDARDS, ucf, iostandards, pad, report, fpga, FPGA, editor, drive, strength, 6.3.3 

 

After implementing a design using a ".UCF" file ( upper case extension ), I see that the PAD report shows the incorrect drive strength, IOSTANDARDS, and LOC constraints. FPGA Editor also shows this incorrect information.

解决方案

The problem is caused by NGDBuild. NGDBuild is not picking up the ".ucf" because the file extension is in upper case. 

 

To work around the issue, you must use the file extension in lower case.

AR# 19051
日期 05/16/2014
状态 Archive
Type 综合文章
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