General Description:
The following timespec definition is not understood by Constraints Editor:
timespec ts05 = from pads(pclk) to ffs = 6 ns;
The following warning is generated:
WARNING: Unable to create FROM TO with ts05.
The warning can either be ignored, or you can modify the UCF file to include the timegrp, and then the timespec.
For example:
timegrp pad_pclk = pads(pclk);
timespec ts05 = from pad_pclk to ffs = 6ns;
This is fixed in the 4.1i software release.
AR# 6383 | |
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日期 | 01/18/2010 |
状态 | Archive |
Type | 综合文章 |