[PD] Raspberry Pi Behringer UCA222 boot problems
John Canning
johnnyboy7777 at hotmail.co.uk
Sat Jul 27 20:22:29 CEST 2013
Hi Martin,
I thought about this but since the Pi boots with the soundcard plugged in
at USB 2 speed I reckon that this is not the issue. That said, I am using
an iPhone charger that only outputs 1 amp. I will try it with another one
as soon as I can but that won't be for a few days at least. I'll keep you
informed.
John
On Sat, Jul 27, 2013 at 3:36 PM, Martin Peach <martin.peach at sympatico.ca>wrote:
> Maybe your power supply can't handle the load? 2 Amps regulated 5V is
> good, 1 Amp might not do it.
>
> Martin
>
>
> On 2013-07-27 05:51, John Canning wrote:
>
>> Hi Dan,
>>
>> I have done some more hunting around and on the Pd FrontPage site it
>> says that my Behringer soundcard has been proven to work with the
>> Raspberry Pi with reduced USB speed and I have found some posts that say
>> they have it running in full duplex. What I get is something like this
>> when I have the sound card plugged in on boot
>>
>> [ 2.469784] usb 1-1.3: new high-speed USB device number 4 using dwc_otg
>> [ 2.571518] usb 1-1.3: New USB device found, idVendor=05e3,
>> idProduct=0608
>> [ 2.571545] usb 1-1.3: New USB device strings: Mfr=0, Product=1,
>> SerialNumber=0
>> [ 2.571562] usb 1-1.3: Product: USB2.0 Hub
>> [ 2.573135] hub 1-1.3:1.0: USB hub found
>> [ 2.573640] hub 1-1.3:1.0: 4 ports detected
>> [ 2.849881] usb 1-1.3.4: new full-speed USB device number 5 using
>> dwc_otg
>> [ 2.953034] usb 1-1.3.4: New USB device found, idVendor=08bb,
>> idProduct=2704
>> [ 2.953064] usb 1-1.3.4: New USB device strings: Mfr=1, Product=2,
>> SerialNumber=0
>> [ 2.953081] usb 1-1.3.4: Product: USB Audio DAC
>> [ 2.953096] usb 1-1.3.4: Manufacturer: Burr-Brown from TI
>> [ 2.958781] input: Burr-Brown from TI USB Audio DAC
>> as /devices/platform/bcm2708_usb/**usb1/1-1/1-1.3/1-1.3.4/1-1.3.**
>> 4:1.2/input/input0
>> [ 2.960263] hid-generic 0003:08BB:2704.0001: input,hidraw0: USB HID
>> v1.00 Device [Burr-Brown from TI USB Audio DAC ] on
>> usb-bcm2708_usb-1.3.4/input2
>>
>> and it just hangs there. This is with nothing else plugged in to the
>> PI. Without the lowered USB speed I get so many dropouts that it is
>> completely unusable. I'm sorry to keep harping on about the same thing
>> but as with all of these things you find a little nugget that gives you
>> hope (and another and another). The videos that I have seen like this
>>
>> http://hackaday.com/2013/01/**28/raspberry-pi-becomes-a-**
>> guitar-effects-processor/<http://hackaday.com/2013/01/28/raspberry-pi-becomes-a-guitar-effects-processor/>
>>
>> are pretty much what I'm looking for. Imperceptible/minimal dropouts and
>> decent FX. Can you or anyone tell me why I can't even boot the Pi with
>> the (previously community tested) soundcard plugged in running at USB 1
>> speed? Or why if I plug it in after booting I crash the Pi?
>>
>> This post
>>
>> http://lists.puredata.info/**pipermail/pd-list/2013-01/**100560.html<http://lists.puredata.info/pipermail/pd-list/2013-01/100560.html>
>>
>> and others in the same thread are what started me on this mission so if
>> any of the contributors to it could tell me how they have got this up
>> and running I would eternally grateful
>>
>> Thanks again,
>> John
>>
>>
>> On Sat, Jul 27, 2013 at 12:26 AM, Dan Wilcox <danomatika at gmail.com
>> <mailto:danomatika at gmail.com>> wrote:
>>
>> For what it's worth, I tried force ing USB 1.1 mode on the pi with
>> my UA-25 and that resulted in a hard lock as well. Disappointing at
>> this point since I've worked with audio on slower embedded machines
>> before ...
>>
>> On Jul 26, 2013, at 7:19 PM, John Canning
>> <johnnyboy7777 at hotmail.co.uk <mailto:johnnyboy7777 at hotmail.**co.uk<johnnyboy7777 at hotmail.co.uk>
>> >>
>> wrote:
>>
>> Thanks for getting back to me Dan
>>>
>>>
>>> On Fri, Jul 26, 2013 at 11:50 PM, Dan Wilcox <danomatika at gmail.com
>>> <mailto:danomatika at gmail.com>> wrote:
>>>
>>> Actually I miss-typed. The issue is with "Isochronous" usb
>>> mode:
>>> http://www.raspberrypi.org/**phpBB3/viewtopic.php?f=28&t=**29226<http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=29226>Looks
>>> like things should be better for USB 2 audio devices, but
>>> still issues with USB 1.1 devices (aka mine :P):
>>>
>>> While Isoc has improved for pretty much everyone using USB2.0
>>>> devices (USB1.1 will still suffer from lost packets due to
>>>> split transaction breakage noted elsewhere) I'm still annoyed
>>>> at my webcams "kinda working" - I get 1-2 seconds of
>>>> uninterrupted video and then a half-garbled frame.
>>>>
>>>
>>>
>>> On Jul 26, 2013, at 6:35 PM, Dan Wilcox <danomatika at gmail.com
>>> <mailto:danomatika at gmail.com>> wrote:
>>>
>>> Sure, but that's only for certain types of USB devices. Some
>>>> are working and others aren't. More "professional" sound
>>>> cards require lower-latency/burst mode over USB which the PI
>>>> firmware currently doesn't allow and/or doesn't set the
>>>> correct priority for. The issue AFAICT is that essentially
>>>> the usb host is software defined on the SOC and they haven't
>>>> optimized it for usb audio, or something like that.
>>>>
>>>> For instance, I can get stereo out in Pd working fine with my
>>>> Edirol UA-25 . If I enable an audio input, I get instant
>>>> dropouts. Yeah, I guess it "works", but not well enough for me.
>>>>
>>>> On Jul 26, 2013, at 6:27 PM, John Canning
>>>> <johnnyboy7777 at hotmail.co.uk
>>>> <mailto:johnnyboy7777 at hotmail.**co.uk<johnnyboy7777 at hotmail.co.uk>>>
>>>> wrote:
>>>>
>>>> Hi Dan,
>>>>>
>>>>> Thanks for getting back to me. I'm still very new to the Pi
>>>>> but have found this post that seems to say that it can work.
>>>>> I'm confused. What do you reckon?
>>>>>
>>>>>
>>>>> On Fri, Jul 26, 2013 at 11:02 PM, Dan Wilcox
>>>>> <danomatika at gmail.com <mailto:danomatika at gmail.com>> wrote:
>>>>>
>>>>> Simply put, the RPI firmware does not work with USB
>>>>> audio correctly yet. See this thread:
>>>>> http://lists.puredata.info/**pipermail/pd-list/2013-07/**
>>>>> 103261.html<http://lists.puredata.info/pipermail/pd-list/2013-07/103261.html>
>>>>>
>>>>> I keep looking for fixes, but the way USB is handled,
>>>>> the only way for it to work without dropouts is to have
>>>>> *nothing* else plugged into the usb bus and ethernet
>>>>> disabled ... sucks.
>>>>>
>>>>> On Jul 26, 2013, at 5:41 PM, pd-list-request at iem.at
>>>>> <mailto:pd-list-request at iem.at**> wrote:
>>>>>
>>>>> *From:*John Canning <johnnyboy7777 at hotmail.co.uk
>>>>>> <mailto:johnnyboy7777 at hotmail.**co.uk<johnnyboy7777 at hotmail.co.uk>
>>>>>> >>
>>>>>> *Subject:**[PD] Raspberry Pi Behringer UCA222 boot
>>>>>> problems*
>>>>>> *Date:*July 26, 2013 5:40:49 PM EDT
>>>>>> *To:*Pure Data <pd-list at iem.at <mailto:pd-list at iem.at>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> Hi Folks,
>>>>>>
>>>>>> I have been trying for quite a while to get my
>>>>>> Raspberry Pi to work in full duplex with Pd. I have
>>>>>> installed the OS on the PdPi site and updated it. I am
>>>>>> using a Behringer UCA222 for audio. When I change the
>>>>>> USB speed down to 1 (dwc_otg.speed=1) in
>>>>>> /boot/cmdline.txt my Pi won't boot with the soundcard
>>>>>> plugged in. If I unplug the soundcard the Pi will boot
>>>>>> but as soon as I plug it in the Pi crashes. Has anyone
>>>>>> got any suggestions about why this is happening?
>>>>>>
>>>>>> Thanks,
>>>>>> John
>>>>>>
>>>>>
>>>>> --------
>>>>> Dan Wilcox
>>>>> @danomatika
>>>>> danomatika.com <http://danomatika.com/>
>>>>> robotcowboy.com <http://robotcowboy.com/>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>> --------
>>>> Dan Wilcox
>>>> @danomatika
>>>> danomatika.com <http://danomatika.com/>
>>>> robotcowboy.com <http://robotcowboy.com/>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>> --------
>>> Dan Wilcox
>>> @danomatika
>>> danomatika.com <http://danomatika.com/>
>>> robotcowboy.com <http://robotcowboy.com/>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>> --------
>> Dan Wilcox
>> @danomatika
>> danomatika.com <http://danomatika.com>
>> robotcowboy.com <http://robotcowboy.com>
>>
>>
>>
>>
>>
>>
>>
>>
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>
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