Method and apparatus for utilizing constraints for the routing of a design on a programmable logic device
First Claim
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1. A method for designing a system on a target device, comprising:
- selecting routing resources for a user specified segment on a target device in response to user specified routing constraints specifying one of a specific wire and a category of wires on the target device; and
selecting routing resources for a non-user specified segment on the target device without utilizing the user specified routing constraints, wherein at least one of the selecting is performed by a processor.
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Abstract
A method for designing a system on a programmable logic device (PLD) is disclosed. Routing resources are selected for a user specified signal on the PLD in response to user specified routing constraints. Routing resources are selected for a non-user specified signal on the PLD without utilizing the user specified routing constraints.
65 Citations
20 Claims
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1. A method for designing a system on a target device, comprising:
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selecting routing resources for a user specified segment on a target device in response to user specified routing constraints specifying one of a specific wire and a category of wires on the target device; and selecting routing resources for a non-user specified segment on the target device without utilizing the user specified routing constraints, wherein at least one of the selecting is performed by a processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system designer, comprising:
a routing unit that selects routing resources for a user specified segment on a target device in response to user specified routing constraints specifying one of a specific wire and a category of wires on the target device, and that selects routing resources for a non-user specified segment on the target device without utilizing the user specified routing constraints. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A non-transitory computer readable medium including a sequence of instructions stored thereon for causing a computer to execute a method comprising:
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selecting routing resources for a user specified segment on a target device in response to user specified routing constraints specifying one of a specific wire and a category of wires on the target device; selecting routing resources for a non-user specified segment on the target device without utilizing the user specified routing constraints; and ordering segments such that segments having user specified routing constraints are routed before segments not having routing constraints. - View Dependent Claims (17, 18, 19, 20)
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Specification