IMX51 UBOOT启动的问题

chkaihao2007 · 发表于 2011-11-29 11:23:50

各位高手：
我用imx51做了一块板子，在UBOOT启动的时候遇到了点问题：
在用USB下载的时候打印信息如下：
Initiating image launch in 1 seconds.
-----------------------------------------------------------------------------
Freescale iMX SOC Menu Item
-----------------------------------------------------------------------------
[0] IP Address : D?.冂8.BB0?
[1] Set IP Mask : 255.255.255.0
[2] Boot Delay : 3
[3] DHCP : Enabled
[4] Reset to Factory Default Configuration
[5] Select Boot Device : NK from SD/MMC
[6] Set MAC Address : FF-FF-FF-FF-FF-FF
[7] Format OS NAND Region
[8] Format All NAND Regions
[9] Bootloader Shell
[I] KITL Work Mode : Polling
[K] KITL Enable Mode : Disable
[P] KITL Passive Mode : Disable
[S] Save Settings
[D] Download Image Now
[L] Launch Existing Flash Resident Image Now
[E] Select Ether Device : USB Serial
[M] MMC and SD Utilities
Selection: d
+InitSpecifiedEthDevice
S USB SERIAL INIT
+UFNPDD_INIT
-UFNPDD_INIT
+HandleUSBDeviceRegistration 1
+HandleUSBDeviceRegistration 2
Mapping 1 to 1
+HandleUSBDeviceRegistration 3
logicalEndPoint= 1
physendpoint= 1
Mapping 2 to 2
+HandleUSBDeviceRegistration 3
logicalEndPoint= 2
+HandleUSBDeviceRegistration 4
-HandleUSBDeviceRegistration
这个地方表明我USB-OTG有问题，我的USB-OTG电路完全按照开发板做的，连接没有问题，IMX51供电没有问题，2.6V供电正常，3.15V供电也正常，不知道什么问题，有没有人碰到这个问题？

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