智能测控终端到PC机的数据转存器  

Study on Equipment Taking Data from SCM to PC

作　　者：李永[1] 李芙玲[1] 

机构地区：[1]华北科技学院,河北三河065201

出　　处：《仪表技术与传感器》2009年第6期76-77,80,共3页Instrument Technique and Sensor

摘　　要：研制了一种具有USB接口和I2C总线接口的数据转存器,通过它可以方便地实现以单片机为核心的测控终端与PC机之间相互传递数据。存储器采用具有I2C总线的EEPROM芯片AT24C512作为数据存储芯片,利用USB总线转接芯片CH341A实现PC机读取EEPROM中数据的功能。文中介绍了CH341芯片、AT24C512芯片及I2C总线,设计了转存器的硬件结构,研制了转存器与测控终端和PC机通信的相关硬件及软件。A sort of equipment for taking data was developed. This equipment has USB and 12 C port. It can transmit data from terminal for measure and control that based on SCM to PC easily. The equipment used EEPROM CMOS chip AT24C512 for storing data, and used USB chip CH341 for transmitting data to PC. CH341, AT24C512 and the characteristic of I2C bus were introduced. The hardware for taking data and software for communication between terminal and PC were designed.

关 键 词：测控终端 USB接口 I2C总线 数据转存 CH341 AT24C512 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]