FPGA和ARM之间一种简易高效的图像数据传输系统实现  

Implement of a Refined and Efficient Image Acquisition System between FPGA and ARM

作　　者：申福伟 赵志刚 牛憨笨[1] 郭宝平[1] 

机构地区：[1]教育部和广东省光电子器件与系统重点实验室,深圳大学光电子学研究所,广东深圳518060

出　　处：《仪表技术与传感器》2013年第11期101-103,共3页Instrument Technique and Sensor

基　　金：国家自然科学基金重点项目(60532090);国家自然科学基金委国家重大科研仪器设备研制专项项目(61227802);中国博士后科学基金资助项目(2012M511835)

摘　　要：为了满足硬件资源受限X射线相衬成像系统中图像数据实时采集的要求,在基于FPGA+ARM双核结构条件下,给出了一种FPGA与ARM之间精简的异步总线实现数据传输的方法,仅需要2根控制线就可以完成高效的数据传输。通过看门狗计时程序的测试表明:该方法能使传输时间缩短50%以上,特别适用于硬件资源紧张、接口信号有限的数据采集系统。In order to meet the requirement of real-time data acquisition for hardware resources limited X-ray phase contrast imaging systems, this paper proposed a refined asynchronous bus data transmission method between FPGA and ARM, based on FP- GA ＋ ARM dual-core structure. In this method ,only two control lines were required for efficiently data transmission. The watchdog timer program testing shows that this method can reduce the transmission time by more than 50%. It is especially suitable for data acquisition system that hardware resources and interface signals are limited.

关 键 词：图像采集系统 FPGA ARM 异步总线 

分 类 号：TP272[自动化与计算机技术—检测技术与自动化装置]