They're sold by a number of vendors (see the wiki for links) but all are
out of stock. Looks like it will be months before they get more in.
On Sunday, July 5, 2015 at 1:27:14 PM UTC-6, Rick M wrote:
>
>
> > On Jul 5, 2015, at 08:41 , jrb...@colorado.edu wrote:
> >
> > Or wait 51 more days fo
Thanks Colin!
This means that the I2C protocol running on pins P9_19 and P9_20 (19 SCL,
20 SDA) is required to complete before the BBB will send audio data on
P9_28 (AUD_DOUT).
Without a cape, I don't see how I can get audio data... perhaps I can use
an Arduino and the Wire.h library to act as
Just an update on this: I used a scope without a cape (because I don't own
one, and estimated backorder on MCM is 52 days). I verified no life on
AUD_DOUT P9_28, but I _do_ see life on pins 19 and 20, which are the I2C
SDA and SCL lines. As soon as I commence sound output, the SCL goes live
w
Colin,
That would be phenomenally helpful! Do you have a scope?
I'm curious if you see any life on pin 28 of the P9 header with and without
a cape. I suspect you will see data with the cape (because the DAC on the
cape board is talking to the BBB's processor), but nothing without it.
I unfor
Latest thoughts on this: I think perhaps the problem is that I should not
expect to see serial data from P9_28 (I2S serial data out) without an
actual Audio Cape. There are probably I2C (control) and I2S (audio
content) requirements, such as clocks and so forth, that are required
before the B
Well, I'm perplexed then. I have bone47 on two different BBB's and both
have been configured the same way: compile dts and put the dtbo in
/lib/firmware, disable HDMI (and HDMIN), add BB-BONE-AUDI-02 to the capemgr
file so it gets added at startup.
But I don't see anything coming out of the AU
On Friday, July 3, 2015 at 9:59:05 PM UTC-6, William Hermans wrote:
>
> There was a change between 3.8.13-bone68, and 3.8.13-bone69 related to I2C
> as I recall. That caused his problem.
>
Thanks William. I read that thread (which has more to do with Audio Cape's
conflicts with the LCD Cape)
On Friday, July 3, 2015 at 7:14:16 PM UTC-6, colin@biocharger.com wrote:
>
> What distro and version are you using? I know on Debian after a certain
> build ( I don't know which ) that BB-BONE-AUDI-02 is installed as part of
> the kernel - if this is your case then the dts you are looking a
On Thursday, July 2, 2015 at 10:55:40 AM UTC-6, J Evans wrote:
>
> > I ran all steps as given by the instructions
> > (http://elinux.org/CircuitCo:Audio_Cape_RevB) including installing a
> new DT overlay, disabling HDMI and adding to the slots file.
>
> >Then I try speaker-test -D default:EVM
On Thursday, July 2, 2015 at 7:37:17 PM UTC-6, William Hermans wrote:
>
> *The spawned process inherits the real UID (and effective and saved UIDs)
>> from the parent. But here he needs root to write to the GPIO file.*
>>
>> *This is really only a security issue if there are ever other users on
On Wednesday, July 1, 2015 at 3:19:27 PM UTC-6, William Hermans wrote:
>
> debian@beaglebone:~$ *cat /sys/class/gpio/export*
> cat: /sys/class/gpio/export: *Permission denied*
> debian@beaglebone:~$ sudo *cat /sys/class/gpio/export*
> cat: /sys/class/gpio/export: *Permission denied*
> debian@beag
I'm sincerely sorry if this is a dupe, but I cannot find the note I
intended to post an hour ago...
I have followed the instructions
here: http://elinux.org/CircuitCo:Audio_Cape_RevB
I compiled the given dts file to obtain the dtbo. I have disabled HDMI
(and HDMIN). And I've added the new de
I don't have an Audio Cape (everywhere is out of stock) but I just want to
test the set up as if I did.
I ran all steps as given by the instructions
(http://elinux.org/CircuitCo:Audio_Cape_RevB) including installing a new DT
overlay,
disabling HDMI and adding to the slots file.
Then I try spea
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