嵌入式系统中USB块数据传输的设计与实现

Design and realize ation of bulk-transport based on USB in embedded systems

为了提高USB块传输的速度和传输质量,从数据链路层方面探讨了块数据如何在USB中传送的方法,给出了利用HDLC进行块数据传输的工作原理和具体的通信过程和块传输实现。从硬件设计和固件(Firmware)设计方面给出了基于USB总线的嵌入式系统中实现块数据传输的设计与实现实例,并给出了测试结果。

In order to improve the speed and quality of the transmission of USB Bulk-transport dataflow, how to deal with the transmission of USB Bulk-transport dataflow with data link protocol HDLC was proposed, and the theory of realization the method of communication and material communication process was explained, An instance about Bulk-transport between USB devices in embedded systems from hardware design and firmware design was given, additionally some testing results.