摘要
在介绍DSO传统设计方法并指出其不足的基础上,提出了一种基于嵌入式技术的数字存储示波器设计方案,设计硬件上采用FPGA+ARM的结构,由ARM负责系统控制和运算两大任务,同时充分利用FGPA快速、灵活的优势来控制采样,接收采样数据,并做缓冲和预处理;软件上使用Linux和Qt/Em-bedded,大大增强了软件的可移植性和人机互动性。给出了硬件结构基本框架和各个软件模块的详细处理方案。本系统的硬件、软件部分均能在其他智能仪器的开发中被方便地移植。
After the introduction of the traditional design method of DSO, a new method based on embedded system is presented, the hardware adopts the structure of FPGA and ARM. The superiority of FPGA in high speed signal sampling control is fully used. Also the flexibility of ARM core in wave refresh, human interface and communication protocol process is utilized. The software adopts Qt/Embedded as well as Linux, which will make the system simple and portable. The whole hardware and software system is easy to be transferred to other system.
出处
《测控技术》
CSCD
北大核心
2009年第1期9-11,15,共4页
Measurement & Control Technology
