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NYao's avatar
NYao
Icon for New Contributor rankNew Contributor
6 years ago

Quartus中的路径约束

Hi， ​ 我需要在Qartus 18.1中做3个信号的路径约束。将三个寄存器的输出连到3个相邻的管脚上，要求3个信号的延时相同，最好走的路径也相近，请问怎么约束？​
KhaiChein_Y_Intel's avatar
KhaiChein_Y_Intel
Icon for Regular Contributor rankRegular Contributor
6 years ago

Hi,

You can create the Logic Lock region using the GUI or qsf assignment.

For example,

1) use the assignment below to create a new placement region with bounding box

coordinates X46 Y36 X65 Y49:

set_instance_assignment -name PLACE_REGION "X46 Y36 X65 Y49" -to <node names>

2) use the assignment below to create a routing region with bounding box coordinates X46 Y36 X65 Y49: set_instance_assignment -name ROUTE_REGION -to "X46 Y36 X65 Y49"

Please note that all instances with a routing region assignment must have a respective placement region; the routing region must fully contain the placement region.

Thanks.

Best regards,

KhaiY