环境监测仪器的USB接口的扩展  

Extension of the USB Interface on Instrument for Monitoring the Environment

作　　者：孟宪春[1] 刘宇红[2] 张思祥[2] 

机构地区：[1]河北工业大学科研处,天津300130 [2]河北工业大学机械工程学院,天津300130

出　　处：《机电产品开发与创新》2008年第2期122-124,共3页Development & Innovation of Machinery & Electrical Products

摘　　要：通用串行总线(USB)具有传输速度快、可靠性高、实时性强、易于扩展、使用灵活、能够进行错误侦测等优点,作为一种通信接口规范,已被广泛地应用在PC外设和便携式系统中,在很大范围内取代了串口RS-232、PIO(并行数据传输)等通信方式。文中介绍了基于PDIUS-BD12芯片的USB接口的硬件电路设计,并介绍了USB固件编程的实现。USB has many advantages, including quick speed of transmission, high reliability, high real-time, easily extend, application flexibility, be capable of detecting wrong. USB is used to PC exterior equipment and portable system as a kind of communication interface standard, therefore, in the extensively, it substitute for several communication mode such as RS-232, PIO, etc. In this paper, the hardware circuit design of USB interface based on PDIUSBD12 chip is introduced, meanwhile implement of USB firmware program is introduced.

关 键 词：通用串行总线(USB) PDIUSBD12 固件编程 

分 类 号：TN919[电子电信—通信与信息系统]