基于Blackfin 533 SPORTs口的USB主从接口设计  

Design of a Host /Slave USB Interface Based on SPORTs of Blackfin 533

作　　者：孙昊[1] 吴子贤[1] 王加加[1] 

机构地区：[1]西安电子科技大学电子工程学院,陕西西安710071

出　　处：《电子科技》2013年第6期85-88,110,共5页Electronic Science and Technology

摘　　要：采用SPI接口协议实现了SPORTs口与CH376的通信。描述了一种基于USB主从接口芯片CH376与Blackfin 533的通信设计方案,包括SPORTs口的接口配置、USB模块的硬件设计、驱动程序、CH376芯片的驱动程序等。实现了DSP对USB存储设备的读写访问,以及计算机与DSP的通信,实验表明,整个设计可实现对U盘的快速读写,并方便与PC机进行通信。This design realizes the communication of SPORTs and CH376 by using SPI interface protocol. This article describes the design of Host/Slave USB Interface based on SPORTs of Blackfin 533 DSP, including the con- figuration of SPORTs interface, the hardware and USB driver, the driver of CH376 chip and so on. It achieves the writing and reading access from DSP to the USB storage device and the communication between the computer and DSP. According to the tests, the overall design can realize fast writing and reading on the U disk and easy communi- cation between the DSP and PC.

关 键 词：SPORTS SPI CH376 USB 

分 类 号：TP335[自动化与计算机技术—计算机系统结构]