用可编程逻辑实现SOC的中断扩展

针对传统的航天控制系统中断控制电路集成度低,可移植性差的特点,在SOC系统中,利用可编程逻辑设计实现了二级中断控制电路。介绍了用VHDL语言实现中断控制器的方法,及如何使用SOC实现对中断的控制,设计去除了传统IC电路的繁琐,实现了数字化、集成化设计,这种设计方法的优点是方便更改中断顺序,设计更改周期短、成本低。

Expanded Interrupt Control by Programmable Logic in SOC

Low integrating and transplanting level has always been a consideration in the design of conventional aerospace control system.This work describes how to realize secondary interrupt control by programmable logic in SOC,which may assist control system in fulfilling corresponding function compactly.Realizing interrupt controller by VHDL and the method to control interruption through SOC is introduced.Substitute to complicated traditional IC circuit design,this approach achieves digitalization and integrative accomplishment.Easy interrupting program modification,short design cycle and low cost are all advantages.