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大多数微处理器系统中都有一个中断系统及优先级逻辑。在NIOS II系统中也包含这些功能。NIOS II系统利用硬件抽象层系统库的应用程序接口函数创建中断服务子程序和管理寄存器窗口。该文主要分析了基于NIOS II的中断处理技术,并提供了导航解算芯片数据传输的解决方案,选择以FPGA作为导航解算芯片,结合配置芯片和接口芯片构建硬件系统,在NIOS II集成开发环境下开发应用程序,利用中断处理技术实现数据传输,并且满足数据信息传输和处理的精度和可靠性要求。
Most microprocessor systems have an interrupt system and priority logic. The NIOS II system also includes these features. The NIOS II system utilizes the application programming interface functions of the hardware abstraction layer system library to create interrupt service routines and management register windows. This paper mainly analyzes the interrupt processing technology based on NIOS II, and provides the solution of navigation solution chip data transmission. It chooses FPGA as the navigation solution chip, and combines the configuration chip and interface chip to build the hardware system. Based on NIOS II Integrated Development Environment development applications, the use of interrupt processing technology to achieve data transmission, and to meet the data transmission and processing of information accuracy and reliability requirements.