Answers Database

M1 Constraints: How to specify a specific CLB to LOC an instance to.


Record #3416

Product Family:  Software

Product Line:  M1 Graphical/General

Problem Title:
M1 Constraints: How to specify a specific CLB to LOC an instance to.


Problem Description:
Keywords:  CLB, INST, LOC, specific, instance

Urgency: Standard

Problem Description:
How can a user select a specific CLB to lock and instance into?


Solution 1:

The solution is to place into the .UCF file the following:

INST [instance] LOC=CLB_RxCy;

where:
INST is the keyword used by M1 to attach an attribute or instance
[instance] is the instance reference. See Libraries Guide for
a list of valid instances (such as flops, FMAPs,HMAPs).
Rx is the row number
Cy is the column number

Example line in .UCF file:

INST U45 LOC=CLB_R5C2;




End of Record #3416