基于SOPC和Nios Ⅱ的一种数码相框设计  

Kind of digital photo frame based on SOPC and Nios Ⅱ

作　　者：张雷[1] 王紫婷[1] 王忠峰[1] 

机构地区：[1]兰州交通大学电子与信息工程学院,甘肃兰州730070

出　　处：《电子测试》2012年第2期87-90,共4页Electronic Test

摘　　要：主要介绍了一种在Altera DE 2平台上的数码相框的实现方案。基于μC/OSII实时操作系统实现多任务管理运行模式,采用Nios Ⅱ 32位处理器作为LED显示屏控制系统的核心。使用SOPC Builder软件定制集成IP核,通过外扩存储设备实现数据的海量存储,解决了FPGA内部资源相对不足的问题。同时,合理组织数据存储方式,降低了数据处理和控制系统的复杂度。讨论了NiosII软核处理器设计过程,通过NiosⅡ控制用户自定义模块以乒乓操作的方式实现对硬盘视频数据与两片内存间的DMA传输。FPGA作为整个系统的控制核心,它负责对采集到的图像数据进行汇总,并对整个系统进行智能控制。结果证明,该系统操作简单,工作稳定可靠,快速高效,具有广阔的应用前景。This paper describes a digital photo frame implementations in the Altera DE 2 platform.It is based on μC /OS II real-time operating system,multi-task management operation mode,using the Nios II 32-bit processor LED display control system as the core.Using the SOPC Builder software custom IP cores,Mass storage of data Conducted by external devices to solve the the lack of resources within the FPGA.Meanwhile,the rational organization of data storage,reducing the complexity of Data Processing and Control System.And discussed the design process of NiosII Soft-core processor.Through Nios Ⅱ control user-defined module as ping-pong operation Achieve the transfer between hard drive and video data between two memory DMA transfer.FPGA as the core of the whole system;which is responsible for the acquired image data aggregation and intelligent to control the whole system.It is proved that the system is simple,stable and reliable,fast and efficient,and has broad application prospects.

关 键 词：LTM控制器 FPGA技术 SOPC NIOS Ⅱ DE270 

分 类 号：TN873.93[电子电信—信息与通信工程] TP273.5[自动化与计算机技术—检测技术与自动化装置]