显示如下：请问是怎么回事
ccccc`FriendlyARM`BIOS`for`rttp`ccccc
[x]`bon`part`p`srpk`rsvxk
[v]`Download`vivi`
[k]`Download`linux`kernel`
[y]`Download`root_yaffs`image`
[a]`Absolute`User`Application
[n]`Download`Nboot`
[l]`Download`WinCE`bootmlogo
[w]`Download`WinCE`NKnbin`
[d]`Download`f`Run`
[z]`Download`zImage`into`RAM`
[g]`Boot`linux`from`RAM`
[f]`Format`the`nand`flash`
`Boot`the`system`
[s]`Set`the`boot`parameters`
`Backup`NAND`Flash`to`HOST`through`USBhuploadi`
[r]`Restore`NAND`Flash`from`HOST`through`USB`
[q]`Goto`shell`of`vivi`
`Versionz`qprvmqr
Enter`your`selectionz`
