摘要
采用单片机设计了一款基于USB-HOST接口的低成本数据采集仪,它实现了单片机与U盘设备间的读写操作。为了适应长时间采集工作而对文件以时间信息命名,操作外设芯片DS1302进行授时,将每一固定时间间隔的数据写入同一文件从而方便桌面计算机的分析与后期处理。
A MCU-supported and USB-HOST-based data-acquisition instrument was developed to facilitate both write and read operation between MCU and U-disk.In order to adapt to long acquisition,the file was defined in U-disk with unique time information;and through DS130 peripheral chip,the time-give was implemented and the data at each fixed time-interval were written to the same file so as to benefit analysis and post-processing of the desktop computer.
出处
《化工自动化及仪表》
CAS
2013年第1期19-21,62,共4页
Control and Instruments in Chemical Industry
