[{"title":"( 2 个子文件 4.42MB ) Xilinx FPGA最小系统原理图(XC3S400+USB2实用)","children":[{"title":"Xilinx FPGA最小系统原理图(XC3S400+USB2实用)","children":[{"title":"Xilinx_FPGA_minsystem_XC3S400_USB2.0.pdf <span style='color:#111;'> 4.54MB </span>","children":null,"spread":false},{"title":"使用说明请参看右侧注释====〉〉.txt <span style='color:#111;'> 774B </span>","children":null,"spread":false}],"spread":true}],"spread":true}]