A Microcontroller Instruction Set Simulator for EMI Prediction

Yuan, Shih‐Yi; Chung, Huai-En; Liao, Shry‐Sann

doi:10.1109/temc.2009.2022836

Cited by 21 publications

(7 citation statements)

References 16 publications

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“…From [6], it has been confirmed that different code fragments will result in different conducted EMI. The time-domain power fluctuation measurement of each code fragment is called the "instruction wave" of the code fragment.…”

Section: A Definition and Measurement Of An Instruction Wavementioning

confidence: 91%

“…to generate different assembly programs with the same functionality [5]. We have manually developed many assembly programs [6] with different assembly code arrangements with the same functionality. These assembly programs are programmed into a target microcontroller and executed in a test embedded system.…”

Section: Introductionmentioning

confidence: 99%

“…The software EMI impacts are measured when these programs are in execution. According to [6] and [7], assembly programs with different assembly code arrangements present different EMI behaviors. We call the code arrangement with a low EMI effect a "low EMI assembly programs.…”

Section: Introductionmentioning

confidence: 99%

“…Based on [6] and [7], this paper proposes a software-level tool by a compiler technique to predict, select, and generate a low EMI assembly program. By the help of the tool, the generated assembly program can reduce EMI emitted from microcontrollers.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Compiler Design Technique for Impulsive VDD Current Minimization

Yuan¹,

et al. 2013

IEEE Trans. Electromagn. Compat.

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For electromagnet interference (EMI) optimization issues, different hardware-level techniques have been proposed. This paper focuses on an EMI optimization technique via a software-level technique. We propose a novel estimation and optimization tool for reducing conducted EMI at specified frequency by compiler technology. This study is not a research on compiler technique but an adaption of computer science-domain technology to EMI optimization research. The proposed tool can accept C language syntax and generate many versions of assembly programs. These assembly programs perform the same functionality defined by the input C program but with different conducted EMI behaviors when they are executed. The proposed tool can estimate, select, and generate the assembly program with the least amount of conducted EMI released during its execution. The experiment results show that the proposed tool can analyze test C-programs and generate lower EMI assembly programs. Currently, compared to a commercial compiler, the proposed technique can decrease conducted EMI by 2-5 dB at any specified frequency.Index Terms-Electromagnetic analysis, electromagnetic interference (EMI), electromagnetic measurements.

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Section: A Definition and Measurement Of An Instruction Wavementioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Compiler Design Technique for Impulsive VDD Current Minimization

Yuan¹,

et al. 2013

IEEE Trans. Electromagn. Compat.

Self Cite

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“…Since the model itself does not contain the EMC-related multiple hardware configurations, it follows that the researches based on those models cannot find IntZ's dynamic behaviours. Even some extensions ( [7], [8]) of the ICEM [6] that adds dynamic IntCA to ICEM, it also presumed a static IntZ for simplicity and 'lumps' the multi-configuration effects into IntCA.…”

Section: Introductionmentioning

confidence: 99%

IC-EMC model extension based on internal impulse response function

Yuan

Huang

Hsu

et al. 2012

2012 Asia-Pacific Symposium on Electromagnetic Compatibility

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This paper proposes a method for microcontroller's IC-EMC model extension. The internal impedance can be estimated without any prior knowledge of microcontroller. The internal impedance is represented by "impulse response" (IR) function and built into an extended IC-EMC model. Theoretical deduction, simulation, and a case study are presented in this paper. Currently, the case study shows that the proposed method is accurate within limited bandwidth (below 30 MHz) due to measurement limitations and is expected to be more accurate with more advanced equipments. This method can help IC design companies to keep their intellectual properties (IP) inside while providing an IP-unrelated EMC model for IC-EMC modellers. It can also help IC-EMC modellers to determine different IC's internal impedance by themselves.

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