【摘要】 该文先对USB接口在通信方面的应用做了一定的研究后 ,提出了一个用USB接口来实现的通信系统 ,整个系统包括硬件电路、固件及Windows设备驱动程序。接着分析了USB接口芯片USBN960 2的原理及其应用电路设计 ,分析了USBWindows设备驱动程序的原理。最后编程实现了USBWindows设备驱动程序。实验结果证明 ,此USB接口系统 ,测试数据传输率可达 5 0 0Kbps左右 ,符合通信设备的需要。更多还原

【Abstract】 This paper firstly gives some research on USB interface system applied in communication. Then a complete USB communication interface system is propose d. The system includes the electrical circuit, the firmware and the Windows devi ce driver. The operating principles and applied circuits of the USB interface c hip USBN9602 is emphatically analyzed in the paper. It also introduces the princ iple of USB Windows device driver. Finally the USB interface is realized by comp uter programming .The experiment suggests that data transport ratio of the syste m is about 500Kbps.更多还原