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MPEG 2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。 Due to the increasing size and complexity of real-time hardware systems, the modular design of system architecture has become the development trend of hardware systems. The methods and features of module control in hardware system are studied. Combined with the characteristics of each function module in MPEG 2 TV encoder, a module control scheme suitable for the hardware system is proposed, and the hardware design idea and software implementation of the control module are described. Practice has proved that the program meets the real-time and reliability of the system design requirements.