实时硬件系统中控制方法的研究

由于实时硬件系统的规模和复杂度不断增大，系统结构的模块化设计已成为硬件系统开发的发展趋势。研究了硬件系统中模块控制的方法和特点。结合MPEG2电视编码器中各功能模块的特点，提出了适合该硬件系统的模块控制方案，说明了控制模块的硬件设计思想和软件实现。实践证明，该方案满足系统实时性和可靠性的设计要求。

Study on controlling modules in real time hardware system

The development of real time hardware systems tends to be module-based as the systems become more and more complicated. Two methods of modules controlling and features are studied. Based on the research of general methods for modules controlling and the analysis of module functions of MPEG-2 encoder, a suitable method of controlling the modules of the encoder is presented and the hardware and software implementations of its controlling module are analyzed in detail. This controlling method is proved to be capable of guaranteeing the reliability of the real time system.