我前几天做的arm底板（核心板是天嵌的tq2440） 包含usb电路 usb的电路很简单 但是打样回来的测试
发现串口显示以下 信息
[root@EmbedSky /]# usb 1-1: new full speed USB device using s3c2410-ohci and add
ress 2
usb 1-1: device descriptor read/64, error -62
usb 1-1: device descriptor read/64, error -62
usb 1-1: new full speed USB device using s3c2410-ohci and address 3
usb 1-1: device descriptor read/64, error -62
usb 1-1: device descriptor read/64, error -62
usb 1-1: new full speed USB device using s3c2410-ohci and address 4
usb 1-1: device not accepting address 4, error -62
usb 1-1: new full speed USB device using s3c2410-ohci and address 5
usb 1-1: device not accepting address 5, error -62
hub 1-0:1.0: unable to enumerate USB device on port 1
usb无法挂载，这是硬件的问题么 ？还是需要软件设置？
核心板放到在开发板自带的底板上可以正常识别 |
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