walt
Posts: 17
Joined: Wed Apr 02, 2014 3:32 am
Location: boston

[Fixed][Compute module] cannot boot up - USB Warning

Tue Sep 16, 2014 2:14 pm

HW: computer module + SMSC LAN9514
SW:
Official RASPBIAN
Debian Wheezy
Version:September 2014
Release date:2014-09-09
Default login:pi / raspberry
URL:raspbian.org
Kernel version:3.12
from http://www.raspberrypi.org/downloads/
-------------------
I captured UART during booting:
USB Error

[ 1.950354] dwc_otg bcm2708_usb: irq 32, io mem 0x00000000
[ 1.957544] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 1.965694] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.974295] usb usb1: Product: DWC OTG Controller
[ 1.980360] usb usb1: Manufacturer: Linux 3.12.28+ dwc_otg_hcd
[ 1.987544] usb usb1: SerialNumber: bcm2708_usb
[ 1.994219] hub 1-0:1.0: USB hub found
[ 1.999455] hub 1-0:1.0: 1 port detected
[ 2.005091] WARN::dwc_otg_handle_mode_mismatch_intr:68: Mode Mismatch Interrupt: currently in Device mode
[ 2.005091]
[ 2.019944] WARN::dwc_otg_handle_mode_mismatch_intr:68: Mode Mismatch Interrupt: currently in Device mode
Last edited by walt on Wed Sep 17, 2014 2:32 am, edited 1 time in total.

Briarios
Posts: 119
Joined: Thu Feb 21, 2013 11:35 am
Location: Perth, Western Australia
Contact: Website

Re: [Compute module] cannot boot up - USB Warning

Tue Sep 16, 2014 10:23 pm

Is the OTG pin grounded?, I think the OTG pin needs to be set in order to boot up as a host controller ( im just looking at the rpi documentation)
http://rpi.pmfg.me -- Test board Eagle Cad Files.

walt
Posts: 17
Joined: Wed Apr 02, 2014 3:32 am
Location: boston

Re: [Compute module] cannot boot up - USB Warning

Wed Sep 17, 2014 2:31 am

Great, I double check our IO board about USB_OTG_ID, which is float, while it is pulled low in RPI-CMIO-V1_2-SCHEMATIC.pdf.

Then I short it by GND.
The error is fixed!! Now, I could log in.

Thanks.

Briarios
Posts: 119
Joined: Thu Feb 21, 2013 11:35 am
Location: Perth, Western Australia
Contact: Website

Re: [Fixed][Compute module] cannot boot up - USB Warning

Wed Sep 17, 2014 3:07 am

Oh that is good :D
http://rpi.pmfg.me -- Test board Eagle Cad Files.

MDMoore313
Posts: 1
Joined: Wed Sep 17, 2014 3:47 pm

Re: [Compute module] cannot boot up - USB Warning

Wed Sep 17, 2014 3:54 pm

walt wrote:Great, I double check our IO board about USB_OTG_ID, which is float, while it is pulled low in RPI-CMIO-V1_2-SCHEMATIC.pdf.

Then I short it by GND.
The error is fixed!! Now, I could log in.

Thanks.
This worked for me as well, I have board rev. 1.2(c) for reference.

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