这是USB芯片CY68013和FPGA互连的读写的实例代码，sparten6是新的FPGA平台，对需要使用新的平台的朋友，有一定的帮助。-This is the USB chip and the FPGA interconnect CY68013 read the example code, sparten6 a new FPGA platform, the platform on the need to use the new friends, have some help.