文档介绍：进入Bootrom界面
用户键入<Ctrl+B>后,系统提示:
Please input Bootrom password:
此时需要用户要输入BootROM口令(路由器出厂时缺省没有BootROM口令,直接回车即可)。若用户已经修改过BootROM口令,应该输入正确的口令,若三次口令验证未通过,则系统中止。
 
3. 选择串口,进行配置升级
当用户输入了正确的BootROM口令,系统将出现如下提示信息:
===================<EXTEND-BOOTROM MENU>=====================
| <1> Boot From CF Card |
| <2> Enter Serial SubMenu |
| <3> Enter SubMenu |
| <4> File Control |
| <5> Modify Bootrom Password |
| <6> Ignore System Configuration |
| <7> Boot Rom Operation Menu |
| <8> Clear Super Password |
| <9> Device Operation |
| <a> Reboot |
=============================================================
Enter your choice(1-a):2
选择2进入串口子菜单:  Enter Serial SubMenu
======================<SERIAL SUB-MENU>======================
|Note:the operating device is CF Card |
| <1> Download Application Program To SDRAM And Run |
| <2> Update Main Application File |
| <3> Update Backup Application File |
| <4> Update Secure Application File |
| <5> Modify Serial Interface Parameter |
| <6> Exit To Main Menu |
=============================================================
Enter your choice(1-6):5
选择5对串口的速率进行调整
选择<5>系统会提示修改串口波特率:
========================<BAUDRATE SET>=======================
|Note: Change The HyperTerminal's Baudrate Accordingly, |
| Press 'Enter' to exit with things untouched. |
|--------------------<Baudrate Avaliable>--------------