Hi, We are working on DM3730 custom board , designed with reference to BeagleXM RevC board. We are using USB3320 and LAN9514 for USB and Ethernet interface.
but in my board Ethernet and USB not working.
it shows in serial port
[ 13.774078] omap_vout omap_vout: : registered and initialized video device 1
[ 13.781280] omap_vout omap_vout: Buffer Size = 3686400
[ 13.787567] omap_vout omap_vout: : registered and initialized video device 2
[ 13.977783] usb 2-2: device descriptor read/64, error -71
[ 14.224700] usb 2-2: new high speed USB device using ehci-omap and address 3
[ 14.426300] usb 2-2: device descriptor read/64, error -71
[ 14.721923] usb 2-2: device descriptor read/64, error -71
[ 14.968597] usb 2-2: new high speed USB device using ehci-omap and address 4
[ 15.443786] usb 2-2: device not accepting address 4, error -71
[ 15.596496] usb 2-2: new high speed USB device using ehci-omap and address 5
[ 16.054748] usb 2-2: device not accepting address 5, error -71
[ 16.060729] hub 2-0:1.0: unable to enumerate USB device on port 2
we are monitor the DM and DP signals on usb3320 ic.
before booting it shows 3.1V on DP signal and 0V on DM signal in working and non-working boards
but after some time it shows on DP signal in both working and non-working boards
after some time it shows on DM signal in both working and non-working boards
after some fraction of seconds in working board DP signal go to low and at the same time non-working board DP signal go to high.
we are not decided, that is USB3320 problem or LAN9514 problem.
we are not able to see the device in software. Please help us in resolving this issue.
Regards
prasanna kumar
