The Implementation of 8051 MCU for IC-EMC Testing
Keywords:
8051; Electromagnetic Compatibility; Electromagnetic Compatibility of Integrated Circuits; In-System Programming; Microcontroller.Abstract
In recent years, several new methods for IC-level electromagnetic compatibility (EMC) testing have been introduced. Therefore, a handy vehicle for IC-EMC test is required to validate the effectiveness of the new IC-EMC testing methods. The ease-of-use, wide applicability, and high reliability of 8051 microcontroller units (MCUs) has led to their wide-scale application in embedded systems. To extend the scope of the application of 8051 MCU, this study implements an 8051 MCU of MC8051 architecture with I2C bus interface as a vehicle for EMC testing. The advantage of I2C is its ability of in-system programming (ISP), which allows the firmware upgrades of 8051 with a personal computer using an inexpensive download cable and therefore provides enhanced flexibility of 8051 for EMC testing. An IC-EMC testing platform composed of a multifunction test board and several off-board probes was fabricated according to IEC 61967 and IEC 62132 standards. It demonstrates the method to use the proposed 8051 chip in EMC testing and reveals the results of its EMC performance.
