A Symbolic Methodology for the Verification of Analog and Mixed Signal Designs

Al-Sammane, Ghiath; Zaki, Mohamed H.; Tahar, Sofiène

doi:10.1109/date.2007.364599

Cited by 23 publications

(25 citation statements)

References 13 publications

(18 reference statements)

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“…Formal approaches like [11], [12], [13], [14], [15], [16] and semiformal approaches like [1], [2], [3], [17] are two main branches in the field. Mathematical origins of these approaches have Maler and Nickovic [18], [19] presented Signal Temporal Logic, STL, to monitor temporal properties of continuous signals by extending Metric Interval Time Logic, MITL [10].…”

Section: Related Workmentioning

confidence: 99%

Using haloes in mixed-signal assertion based verification

Ulus

Şen

2012

2012 IEEE International High Level Design Validation and Test Workshop (HLDVT)

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Abstract-We develop an assertion based verification solution for analog mixed-signal designs. We introduce the halo concept for analog signals to express them with their tolerance and variation values in assertions. The halo of a signal provides a relaxation over the signal and it defines an effective region for that signal which can be used in assertion based verification. Using haloes for analog signals allow us to define a new set of comparison relations between two analog signals including their equivalence. In our intended design flow, these new analog signal operators are placed into the Analog layer of mixed-signal assertion languages as an extension. We present experimental results on a programmable switch and a VCO.

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Section: Related Workmentioning

confidence: 99%

Using haloes in mixed-signal assertion based verification

Ulus

Şen

2012

2012 IEEE International High Level Design Validation and Test Workshop (HLDVT)

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“…Such formalization was found practical in modeling hybrid systems like discrete-time AMS design [2]. In the remaining of this paper, we will show how such recurrence equations can be suitable under certain conditions for modeling continuous-time AMS systems, hence allowing a unified modeling framework for discrete and continuous time AMS designs.…”

Section: A Systems Of Recurrence Equationsmentioning

confidence: 99%

Combining Symbolic Simulation and Interval Arithmetic for the Verification of AMS Designs

Zaki

Al-Sammane

Tahar

et al. 2007

Formal Methods in Computer Aided Design (FMCAD'07)

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Abstract-Analog and mixed signal (AMS) designs are important integrated circuits that are usually needed at the interface between the electronic system and the real world. Recently, several formal techniques have been introduced for AMS verification. In this paper, we propose a difference equations based bounded model checking approach for AMS systems. We define model checking using a combined system of difference equations for both the analog and digital parts, where the state space exploration algorithm is handled with Taylor approximations over interval domains. We illustrate our approach on the verification of several AMS designs including ∆Σ modulator and oscillator circuits.

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“…The corresponding algorithm for formal verification of AMS SoC maps the partition into DATS. Such method is able to detect the errors hidden in circuit design [6].…”

Section: Introductionmentioning

confidence: 99%

“…Experimental results Table 1 shows the experimental results comparison among PHAVer [8], LHPN [6] and the proposed method. The parameters used for the experiment stems from [2].…”

mentioning

confidence: 99%

A Novel Approach to Formal Verification for AMS SoC

Shao¹,

Fu²,

Zhang³

2016

Advanced Science and Technology Letters

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Abstract. This paper proposes a novel methodology for AMS SoC formal verification based on Hybrid Scheme combined with symbolic computing and LHPN model, FV-HS. The paper is concerned with a class of AMS designs, continuous-time AMS designs i.e., tunnel diode oscillator for research target. Firstly, Labeled Hybrid Petri Net model is established for safety property verification of tunnel diode oscillator, then mathematical expression for this model is extracted for efficiency enhancement, and then proof policy built in computer algebra Maple is applied to the corresponding LHPN model for tunnel diode oscillator to verify the property. The proposed method is implemented on tunnel diode oscillator and experiment results demonstrate the advantages of the proposed method over previous method. The proposed method overcomes the drawbacks of LHPN, makes full use of the merits of LHPN and symbolic computing, simplifies the workflow of algorithm and enhances the efficiency.

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A Symbolic Methodology for the Verification of Analog and Mixed Signal Designs

Cited by 23 publications

References 13 publications

Using haloes in mixed-signal assertion based verification

Using haloes in mixed-signal assertion based verification

Combining Symbolic Simulation and Interval Arithmetic for the Verification of AMS Designs

A Novel Approach to Formal Verification for AMS SoC

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