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A method of equivalent output after post-simulation circuit optimization

A circuit and output information technology, applied in the effective field, can solve the problem of lack of output information, and achieve the effect of reducing storage space, reducing dependence, and shortening simulation time

Active Publication Date: 2020-04-07
SHENZHEN HUADA EMPYREAN TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the deficiencies in the prior art, the purpose of the present invention is to provide a method for equivalent output after circuit optimization. Aiming at the lack of output information after circuit optimization in the current integrated circuit automation products, a calculation method is proposed. way to equivalent output method

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  • A method of equivalent output after post-simulation circuit optimization

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Embodiment Construction

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

[0021] figure 1 For the method flow chart of the equivalent output after the post-imitation circuit optimization according to the present invention, the following will refer to figure 1 , the method for the equivalent output after the post-imitation circuit optimization of the present invention is described in detail.

[0022] First, in step 101, circuit simulation is started.

[0023] In step 102, the output information in the circuit is discriminated, and the equivalent output information and the non-equivalent output information are distinguished.

[0024] In this step, firstly traverse all the output information, for the ones that can be equivalently divided into one group...

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Abstract

A method for optimizing that equivalent output of post-simulation circuit comprises the follow steps: 1) discriminating the output information required by circuit simulation and filter the equivalentoutput information; 2) storing the RC matrix before optimization in advance; 3) optimize that circuit and storing the optimize node information; 4) updating the RC matrix before optimization and solving to obtain the corresponding output information of the optimized node; 5) outputting the equivalent output information of the node. The method of the equivalent output after optimization of the post-simulation circuit of the invention ensures the integrity of the output according to the equivalence of the post-simulation circuit and realizes user-friendliness.

Description

technical field [0001] The invention relates to the field of integrated circuit automation product design, in particular to a method for equivalence of outputs after circuit optimization in integrated circuit design. Background technique [0002] The scale of equations in electronic circuits is an important factor restricting the performance of integrated circuit automation products. At present, most of the products on the market will optimize the circuit in advance to reduce the circuit scale, thereby reducing the complexity of the equation system calculation. However, most circuit optimizations are restricted by various factors, including the influence of circuit output information, which will reduce the efficiency of our circuit optimization. With the continuous progress of the technology to the nanometer level, the scale of the circuit is also expanding rapidly, and the scale of the problem to be solved is also increasing rapidly. It affects the design scale and design...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F30/38
CPCG06F30/20G06F30/39
Inventor 刘琳周振亚程明厚吴大可
Owner SHENZHEN HUADA EMPYREAN TECH CO LTD
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