wa5320-sl

请大神帮忙看下是哪里出问题了，引导至press Ctrl+B to access EXTENDED-BOOTWARE MENU…出现这个提示的时候按Ctrl+B怎么就是不进主菜单呢？下面是超级终端配合console看到的信息，请大神帮忙分析一下是哪里的问题谢谢 System is starting... Press Ctrl+D to access BASIC-BOOTWARE MENU Booting Normal Extended BootWare The Extended BootWare is self-decompressing................................. ..Done. **************************************************************************** * * * H3C WA5320-SI BootWare, Version 7.12 * * * **************************************************************************** Copyright (c) 2004-2017 New H3C Technologies Co., Ltd. Compiled Date : Dec 19 2017 CPU Type : ARM CPU L1 Cache : 32KB CPU L2 Cache : 256KB CPU Clock Speed : 710MHz Memory Type : DDR3 SDRAM Memory Size : 256MB Memory Speed : 533MHz Flash Size : 32MB PCB Version : Ver.B BootWare Validating... Press Ctrl+B to access EXTENDED-BOOTWARE MENU... Loading the main image files... Loading file flash:/wa5300-system.bin....................................... ........................................................................ Done. Loading file flash:/wa5300-boot.bin..................................... Done. Image file flash:/wa5300-boot.bin is self-decompressing..................... ............................................................................ ..........................................................................

超级终端配置，串口com1，波特率9600 数据位8 奇偶校验，无 停止位1.数据流量控制，无