某小型无人机飞控系统的中断控制器设计

Interrupt Controller Design of a UAV Flight Control System

为了提高无人机飞行控制系统对外部事件快速响应及实时处理的能力,中断是一种非常有效的实现手段;文章针对以TI公司DSP芯片TMS320LF2407A为核心的某小型无人机机载计算机系统,提出并实现了基于复杂可编程逻辑单元(CPLD),对无人机飞控系统外部中断端口进行扩展和管理的设计方案,详细给出了中断控制系统的硬件接口设计、程序设计及仿真结果;该设计已成功应用于某小型无人机飞控系统中,提高了无人机飞控系统对外部中断事件的管理和实时处理能力。

In order to make UAV flight control system response to external events faster and achieve real--time processing capability, interrupt is a very effective means. This paper introduces a small UAV flight control system based on TI＇s DSP chip TMS320LF2407A, and gives a method on how to expand and manage the external interrupt of the UAV flight control system based on CPLD. It also introduces the hardware interface design, the program design and simulation results of the interrupt control system in detail. This design has been successfully applied to a small UAV flight control system, and has improved the UAV flight control system on the external interrupt events management and real--time processing capabilities.