摘要:数据采集系统是通过串行口、并行口或内部总线等与计算机连接的，但是它们都有一个很明显的缺点，即安装不太方便，灵活性受到限制。USB是一个外部总线标准，用于规范电脑与外部设备的连接和通讯。
在本论文中介绍了USB体系结构和数据流的相关内容以及数据采集系统的设计，数据采集系统的设计包括硬件设计、固件程序设计、驱动程序开发和应用程序开发四大部分。在硬件部分介绍了CY7C68013芯片的性能和特点，然后给出AD转换器、单片机、接口芯片的连接。程序开发部分是设计中的重点，论文从总体上介绍了程序的设计思想及层次结构。
关键词 数据采集器；USB；系统设计
Abstract:Data acquisition system through the serial port, parallel port or internal bus is connected to the computer, but they all have one obvious disadvantage, namely the installation is not very convenient, flexibility is limited. USB is a foreign bus standard, used to regulate computer connections and communications with external devices.
In this paperdescribes theUSB architectureand data flowof relevant contentand data acquisitionsystem design,data acquisitionsystem designincluding hardware design, firmwareprogramming,driver developmentand application developmentof four parts.In the hardwaresection describes the CY7C68013 chipperformance and features, and then givesan AD converter, microcontroller,interface chipconnections.Program developmentpart isthe focus ofthe design, the paperdescribes the overalldesignof the programand thehierarchy.
Keywords The data collector USB The system design
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