General Description:
There is no specific constraint that will force the
use of a particular routing resource, unless you make a
hard macro.
Here are some possibilites:
1) Use timespecs
2) Align logic using given signal into column (using RLOCs/LOCs). This
will encourage use of vertical longlines.
3) Use PCF constraint: NET my_net PRIORITIZE = 90;
This, along with timespec, will encorage use of longlines.
4) Modify the design in EPIC to use longlines.
AR# 4085 | |
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日期 | 01/18/2010 |
状态 | Archive |
Type | 综合文章 |