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ＦＰＧＡ是８０年代发展起来的先进的ＡＳＩＣ技术。由于其具有现场可编程特性，故特别适用于现场动态改变结构的多任务系统。本文利用这一特点实现了一个高速采集、处理多任务的系统。在系统中用ＦＰＧＡ实现了动态总线结构，结构随系统任务的要求，在线改变存储器数据总线、地址总线组织方式，节省了硬件资源，减小了体积，提高了系统的灵活性和可靠性。
FPGA is an advanced ASIC technology developed in the 80’s. Because of its field programmable features, it is especially suitable for multi-tasking systems that dynamically change the structure on site. This article uses this feature to achieve a high-speed acquisition and processing of multi-tasking system. In the system, the dynamic bus structure is realized by FPGA. The structure changes the memory data bus and address bus online according to the requirements of the system tasks, saves the hardware resources, reduces the size and improves the system’s flexibility and reliability.