FPGA Fitter Chipplaner "set_instance_assignment -name REGION ..."

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FPGA Fitter Chipplaner "set_instance_assignment -name REGION ..."

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We aim to optimize the timing by restricting the routing area, and by limiting the placement positions and positional relationships of each module on the chip. We used the set_instance_assignment -name REGION "X20 Y230 X380 Y280" -to "top0_name|u_top1_entity_name|u_top2_entity_name" statement on Quartus 24.3, but it seems to have no effect. Is it because the grammar we used is incorrect? Can anyone provide assistance?

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