EMI Prediction Under Different Program Behavior

This paper discusses the estimation, measurement, and prediction on the EMI behaviors of a simple PIC controller under different program considerations. Using the "instruction current" concept, this work can predict, in time domain, very accurate current behavior of the conduct emission. This paper also propose a way to modify ICEM model to achieve a good prediction of the impact of EMI by different program behavior. Prediction improvement can be done if considering further on other effects. The kind of effects can also be applied into the adapted ICEM model with further studies. This work will be of great help to reduce parasitic emission by SW technology and may propose another dimension of techniques for embedded-system software design, software design methodology, driver design, and compiler optimization.