流式细胞仪数据采集系统的USB接口设计  

USB interface design of data acquisition system in flow cytometer

作　　者：马玉婷[1] 吴云良[1] 裴智果[1] 刘健[1] 武晓东[1] 

机构地区：[1]中国科学院苏州生物医学工程技术研究所,江苏苏州215163

出　　处：《电子设计工程》2012年第18期82-86,共5页Electronic Design Engineering

基　　金：国家863基金资助项目(2011AA02A106);中科院知识创新工程主要方向项目(KGCX2-YW-912)

摘　　要：针对流式细胞仪中大量数据高速采集、处理和传输的需求,设计了基于USB的高速数据采集系统,并以FPGA为逻辑控制的核心。介绍了整体设计思路、硬件总体架构和软件流程。采用CY7C68013A的Slave FIFO数据传输模式满足高速传输的需求,以应用程序下载固件的方式满足仪器更新换代的需求。测试结果表明系统传输数据准确,传输速度可达25MB/s,对高速数据传输系统的设计开发具有一定的借鉴意义。According to the requirements of high-speed data acquisition, processing and transmission in flow cytometry, a high-speed data acquisition system based on USB interface is designed, using FPGA as core of logic control. The overall design, hardware architecture and software development are introduced. Slave FIFO data transfer mode of CY7C68013A is used to meet the needs of high-speed data transmission. Downloading firmware in application program meets the needs of apparatus update. Test results show that the system has high accuracy and high speed of up to 25MB/s in data transfer, which can provide reference in design and development of high-speed data transmission system.

关 键 词：高速数据传输 USB FPGA CY7C68013A SLAVE FIFO 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]