diff --git a/install_vivado b/install_vivado
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+	1	下载vivado安装文件
+	2	下载vivado lisence
+	3	解压vivado的安装文件，sudo执行xsetup开始安装
+	4	安装vivado之后，安装 Hardware Server
+	5	通过执行安装路径的bin目录的vivado来启动
+	6	安装Xilinx Platform Cable USB II 下载器驱动
+	i	cd /tools/Xilinx/Vivado/2021.2/data/xicom/cable_drivers/lin64/install_script/install_drivers
+	ii	sudo ./install_drivers
+	iii	lsusb 检查安装的usb设备
+	iv	重新拔插后显示 Bus 005 Device 011: ID 03fd:0008 Xilinx, Inc. Platform Cable USB II
+	7	配置Unused pin，避免报错 end of startup status: low
+	i	在XDC文件里面添加 set_property BITSTREAM.CONFIG.UNUSEDPIN Pullup [current_design]
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