基于USB2.0的高速数据通信接口设计

High-Speed Data Communication Interface Implementation Based on USB2.0

随着数字信号处理速度的提高,传统的串口,并口已不能满足主机与DSP之间的高速数据传输要求,因而,介绍了一种基于TMS320C5402 DSP和CY7C68013的USB2.0系统。利用FPGA进行I/O口的扩展,克服了I/O口功能弱的缺点,提高了DSP的控制能力。实验表明,该系统具有速度快,可靠性高的优点。

With the increase in the speed of digital signal processor （DSP）, serial and parallel ports can＇t meet the demand of high-speed data transmission between computer and high-speed DSP. A system on the basis of TMS320C5402 and CY7C68013 is presented. By using FPGA to expand the I/O interface , the weakness of DSP I/O interface function is improved and the capacity of DSP control is enhanced. Through experiments , it is shown that the system is rapid and reliable.