Development of a communication interface testing system based on ARM

As the use of private protocols becomes popular in distributed data acquisition system, it is urgent to test interfaces of these systems. The interfaces cannot be tested by general communication protocol testing equipment, so a simple strategy of how to develop an efficient custom interface testing system with a testing module based on PC is proposed.In this paper, we focus on the design and implementation of how to realize an interface testing module based on ARM. Analyses of the interface characteristics, basic structure and software processes of the interface testing module, and application method of interface testing with the PC and the interface testing module, are discussed. Experimental results show that the custom interface testing system well meets the testing requirements. This proposes a way to do a rapid development of custom interface testing systems. (authors)