##### FriendlyARM BIOS 2.0 for 2440 #####
[x] format NAND FLASH for Linux
[v] Download vivi 
[k] Download linux kernel 
[y] Download root_yaffs image 
[a] Absolute User Application
[n] Download Nboot for WinCE 
[l] Download WinCE boot-logo
[w] Download WinCE NK.bin 
[d] Download & Run 
[z] Download zImage into RAM 
[g] Boot linux from RAM 
[f] Format the nand flash 
[b] Boot the system 
[s] Set the boot parameters 
[u] Backup NAND Flash to HOST through USB(upload) 
[r] Restore NAND Flash from HOST through USB 
[q] Goto shell of vivi 
Enter your selection: v
USB host is connected. Waiting a download.

Now, Downloading [ADDRESS:30000000h,TOTAL:127774]
RECEIVED FILE SIZE:  127774 (31KB/S, 4S)
Downloaded file at 0x30000000, size = 127764 bytes
Found block size = 0x00020000
Erasing...    ... done
Writing...    ... done
Written 127764 bytes