Formal verification of mixed-signal circuits using extended PSL

Meng Zhang, Deyuan Gao, Xiaoya Fan
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引用次数: 4

Abstract

As an alternative approach, analyzing hybrid property, the formal method using extended PSL to express specification of mixed-signal circuits is addressed in this paper. With the ability to modeling discrete and continuous dynamic system, Hybrid Automata is adopted in verification of mixed-signal circuits. We extend the PSL to HAPSL (Hybrid Automata Based PSL) with Hybrid Automata, and define EBNF grammar for the syntax of HAPSL. The continuous temporal property and probabilistic property of mixed-signal circuit can be abstracted by HAPSL. Model Checking is proposed as a formal verifying methodology, in which an on-the- fly checking is preformed for the continuous temporal property, and the checking of probabilistic property is based on hypothesis test. We illustrated this method by analyzing two mixed-signal circuits. The specification of circuit that depends on continuous variables and stochastic process is expressed by HAPSL sentences.
使用扩展PSL的混合信号电路的正式验证
作为分析混合特性的一种替代方法,本文讨论了用扩展PSL表示混合信号电路规格的形式化方法。混合自动机具有对离散和连续动态系统建模的能力,可用于混合信号电路的验证。我们用Hybrid Automata将PSL扩展为HAPSL (Hybrid Automata Based PSL),并定义了HAPSL语法的EBNF语法。混合信号电路的连续时间特性和概率特性可以用HAPSL抽象出来。模型检验是一种形式化的检验方法,即对连续时间特性进行动态检验,对概率特性进行假设检验。我们通过分析两个混合信号电路来说明这种方法。基于连续变量和随机过程的电路规格用HAPSL语句表示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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