嵌入式WinCE平台下的频谱数据传输控制  

Real-time Acquisition of Spectrum Data Based on Embedded WinCE

作　　者：韦晏旭[1] 王志刚[1] 罗光坤[1] 

机构地区：[1]电子科技大学自动化工程学院,成都611731

出　　处：《单片机与嵌入式系统应用》2011年第11期14-17,共4页Microcontrollers & Embedded Systems

摘　　要：针对频谱仪中频谱数据的有序传输控制问题,设计并实现了一种基于ARM+FPGA的运行于WinCE环境下的频谱数据实时采集系统。设计中主要完成了ARM+WinCE通过虚拟地址映射机制与外设缓存FIFO进行数据通信;同时,运行在WinCE系统环境下的人机监控软件,采取了合理高效的算法,实时有序地采集FIFO中缓存的大量频谱数据,实现了被测信号的频率特性数据在LCD上的高保真度显示。To overcome the problem of orderly transferring control of spectrum data of spectrum analyzer, a real time acquisition system which runs on WinCE Operating System is implemented, and it is designed on ARM＋FPGA hardware platform. The main achievements of this paper are as follows.. ARM＋WinCE communicate with the external device buffer FIFO through a virtual address mapping mechanism. What＇s more,the real time system acquires real time spectrum data buffered in FIFO according to a reasonable and efficient algo rithm, and it realizes high definition display of frequency characteristic data of the measured signal on LCD.

关 键 词：WINCE 虚拟地址映射 实时有序采集 传输控制 高保真度显示 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构] TM935.1[自动化与计算机技术—计算机科学与技术]