FPGA、CPLD芯片的usb数据下载线，下载速度是并口的5位，内有原理图用程序-FPGA, CPLD chip usb data download lines, download speed is the parallel port of the five, with a schematic diagram of procedures in

The design is designed partly in VHDL, partly in schematic drawings and targets a Xilinx Spartan-2E FPGA. However, since the design was tailored specifically for the aforementioned boards it is highly unlikely that it can be ported to other hardware.

Lattice USB FT2232 JTAG Programming Cable Schematic