[PD] Raspberry Pi Behringer UCA222 boot problems
John Canning
johnnyboy7777 at hotmail.co.uk
Sat Jul 27 20:32:50 CEST 2013
@Pagano, Patrick
Grim!! That was the next one I was about to try
Have you guys seen this
http://createdigitalmusic.com/2013/07/roll-your-own-looper-cheap-raspberry-pi-pd-korg-monotron-hands-on/
Its at least a proof of concept but he has given no information about what
hardware he has used. I'll keep hunting and keep you guys informed
On Sat, Jul 27, 2013 at 7:22 PM, John Canning
<johnnyboy7777 at hotmail.co.uk>wrote:
> 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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