摘要
提出一种基于DSP+FPGA+2块RAM+高速A/D的乒乓式存取高性能数据采集通道,设计FPGA控制两片SRAM轮流存储和读取数据的高速数据通道的控制电路,构建实时高速、大容量的数据采集和信息处理系统,有效地实现DSP处理数据过程中不间断采集数据.论述了乒乓式存取和系统电路的工作原理,FPGA内部各功能模块的设计,DSP控制FPGA工作模式通过仿真得到总时序控制图,数据采集率达到6 MSPS,达到了自动、高速、大容量、实时采集的目的.
This paper has proposed a kind of ping-pong access to high-performance data acquisition channels based on DSP, FPGA, two pieces of RAM and high-speed A / D and designed a high-speed data channel control circuit to control two pieces of SRAM and alternately store and retrieve data by FPGA. The designed control circuit builds a real-time high-speed, large-capacity data acquisition and information processing system, and implements uninterrupted data collection in the DSP processing data. This paper discusses the ping-pong access and the working principle of the system circuit, the FPGA internal design of each functional module, given the timing diagram by DSP control FPGA, the data acquisition rate reaches 6MHz, the goal of automatic, high speed, large capacity, real-time acquisition has been applied.
出处
《广西科技大学学报》
CAS
2015年第1期43-48,共6页
Journal of Guangxi University of Science and Technology
基金
广西科学基金项目(桂科自2014GXNSFAA118392)资助
关键词
高速数据采集
乒乓式存取
工作模式
FPGA功能模块
切换
high-speed data acquisition
access of ping-pong
working module
FPGA function module
switchover
