介绍了TMS320DM642系统中的高速USB2.0芯片ISP1761的接口设计方法。首先对ISP1761的主要特点进行了介绍并给出了关键的电路连接图,然后对软件架构进行了介绍,详细说明了USB芯片的配置、USB驱动、UFI驱动和文件系统的设计。
In this paper, the interface' s design used the high-speed USB 2.0 chip ISP1761 based on TMS320DM642's system is described. First, the main features of the ISP1761 are introduced and the key circuit is given, the software architecture is introduced. Then the configuration of USB chip, USB driver and UFI driver, and the design of the file system are described in detail.