基于FT245BM和FPGA的数据采集设计  

The design of data acquisiton system based on FT245BM and FPGA

作　　者：梅文龙[1] 王辉[1] 

机构地区：[1]南京工业大学电子与信息工程学院,江苏南京211816

出　　处：《电子技术应用》2013年第6期118-120,123,共4页Application of Electronic Technique

摘　　要：基于FT245BM和FPGA设计了一个高速数据采集系统。主控制器采用MCU和FPGA,MCU通过串口接收PC机打包发送的命令,通过主控模块控制AD采集信号,在FPGA中形成数据流,并通过USB总线传输给PC机。此设计简化了USB通信,提高了软件编写效率,减少了电子元器件的使用。经过PC机软件测试,PC机采集到的数据和原输入数据变化趋势基本一致,符合设计要求。A high speed data acquisition system based on FT245BM chip and FPGA is designed in this paper. This system completes functions of data acquisition and data transmission by using MCU and FPGA as the master controller. MCU receives packaged commands sent through the serial port to PC. Controlled by the master controller, the AD collects signal, then the data stream is formed in the FPGA. At last the data is transferred to the PC via the USB bus and then stored. USB communication is simply designed in this system. The efficiency of software development is improved and hardware resources is saved. After testing by PC software, we can see that data collected by PC is broadly consistent with the trend of the original input data, and the sys- tem meets the design requirements.

关 键 词：FPGA USB MCU 数据采集 FT245BM 

分 类 号：TN79[电子电信—电路与系统]