摘要
USB总线是一种新型的计算机总线接口标准,而USB2.0的高速特点又是其他总线标准所无法替代的。文中针对外设与PC机的批量数据传输需求,设计了一个基于PIC18F4550的批量数据传输模块。详细阐述了软硬件设计方案,包括硬件电路设计、固件程序、驱动程序以及应用程序编写。实验证明,该模块的通信速率高达8Mb/s,满足全速USB2.0的要求。该设计具有电路简单、便于集成等特点,已成功应用于某存储测试系统中。
USB bus is a new standard for microcomputer＇s bus interface prevailing in recent years,and it is difficult to be substituted because of its high speed.According to the requirements of the mass data transmission between PC and peripherals, in this paper designs a bulk data transfer module based on PIC18F4550.It elaborates on the software and hardware designing proposal including design of hardware circuit, compilation of firmware, devices driver and application. Experiments improve that the communication rate can reach 8.0Mb/s and it meets the requirements of full speed USB2.0. The design has some advantages such as simple circuit and easy to integrate, which has been applied to some storage test system.
出处
《自动化与仪表》
北大核心
2010年第1期57-60,共4页
Automation & Instrumentation
