Running from SD...
Superboot-6410
Ver: 1150
CPU: S3C6410 533MHz
RAM: 256MB
NAND: 2GB(MLC2) ID:ECD58472
Touch Device: 1-wire
LCD Type: N43(Auto)
##### FriendlyARM Superboot for 6410 #####
[f] Format the nand flash
[p] Download superboot
[v] Download uboot.bin
[k] Download Linux/Android kernel
[y] Download root yaffs2 image
Download root ubifs image
[a] Download Absolute User Application
[n] Download Nboot.nb0 for WinCE
[l] Download WinCE bootlogo
[w] Download WinCE NK.bin
Boot the system
[s] Set the boot parameter of Linux
[d] Download and Run an Absolute User Application
Version: 1150, RAM 2048 MiB, NAND(MLC2) 2GiB
Please enter your Selection:v
Download uboot...
Take default address 0x50200000
Download address 0x50200000
在这种情况下，usb下载不了程序？为什么呢？
串口，和usb都连接正常。
