Timing constraint checking method

Abstract

The invention discloses a timing constraint checking method, and belongs to the technical field of layout design. The method comprises the following steps of: A1: according to a hardware code related to the layout design, carrying out processing to obtain a corresponding netlist; A2: according to the netlist, carrying out simulation to generate corresponding standard delay data; A3: according to the standard delay data, carrying out a post simulation operation on the layout design so as to match with a timing constraint file used for representing the design constraint of the layout design, and outputting a matching result; A4: according to the matching result, regulating the timing constraint file until the matching result expresses that post simulation is qualified, and then, turning to A5; and A5: carrying out corresponding timing checking on the layout design, and exiting. The above technical scheme has the beneficial effects that a timing constraint checking process is brought forward to be simultaneously carried out with a P&R (Place& Route) process, and the problems that an error influence is great and extra human cost needs to be paid since a timing constraint problem is found too late are solved.

Description

technical field [0001] The invention relates to the technical field of layout design, in particular to a timing constraint checking method. Background technique [0002] In the existing technical field of layout design of integrated circuits, timing constraint checking for layout design usually needs to be performed after wiring and placement. In other words, in the prior art, the execution time of the timing constraint check for the layout design is later and closer to the final tape-out process. If there is a problem in the timing constraint inspection, it will have a huge impact because it is closer to the chip tape-out process, which will generally lead to a delay in chip tape-out, and more additional labor costs will be paid for this. Contents of the invention [0003] According to the problems existing in the prior art, a technical scheme of a timing constraint checking method is now provided, which aims to advance the timing constraint checking process to the same ...

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Problems solved by technology

[0003] According to the problems existing in the prior art, a technical scheme of a timing constraint checking method is now provided, which aims to advance the timing constraint checking process to the same time as the wiring and placement process, and solve the timing constraint problem and cause errors caused by late discovery. , need to pay extra manpower cost and other issues

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