“usb_host_mouse”测试CPU的作为USB主设备，将USB接口鼠标插入CPU板上的HOST座，连接上255串口线，点击或移动鼠标观察超级终端。注意：JP2跳帽跳至右侧（短接2-3）（UART波特率设置115200 bps，8-N-1模式发送数据）。-As a USB host device, the mouse into the USB port " usb_host_mouse"　test the CPU HOST CPU board seat, 255 serial cable connection, click or move the mouse to observe the super terminal. Note: JP2 jumper cap jump to the right side (short 2-3) (UART baud rate setting 115200 bps ,8-N-1 mode to send data).