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Budgeting global constraints on local constraints in an autorouter

机译:在自动布线器中对局部约束的全局约束进行预算

摘要

Local constraints on placement of routing objects for direct connections between terminals in a circuit layout are determined from global constraints on the placement of the routing objects in a process referred to as global constraint budgeting. An autorouter finds paths in the layout to satisfy the local constraints and ignores the global constraints. The local constraints are updated before each routing pass to ensure that routes are completed on individual direct connections while also satisfying the global constraint.
机译:由在称为全局约束预算的过程中对布线对象的布置的全局约束来确定对电路布局中的端子之间的直接连接的布线对象的布置的局部约束。自动布线器会在布局中找到满足局部约束的路径,而忽略全局约束。在每次通过路由之前更新本地约束,以确保在单个直接连接上完成路由,同时还满足全局约束。

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