USB的VHDL实现源码\firmware.a51
.................\FIRMWARE.HEX
.................\GPL.txt
.................\SRAM.vhd
.................\TBxsp010.vhd
.................\TBxsp010pak.vhd
.................\usbEP0.vhd
.................\usbTSTPAK.vhd
.................\XSP010.vhd
.................\xspCLK.vhd
.................\xspCORE.vhd
.................\xspFPGA.vhd
.................\xspLED.vhd
.................\xspPHY.vhd
.................\xspUC.vhd
.................\xspUSB.vhd
USB的VHDL实现源码