Hi all,
I have a CircuitCo audio cape, rev. B1 (
http://elinux.org/CircuitCo:Audio_Cape_RevB) that works great on a BBB with
Wheezy. When I flash the BBB with Jessie (2015-02-15 release), I can't get
it working.
In /boot/uEnv.txt, I have these lines active:
cape_disable=capemgr.disable_partno=BB-BONELT-HDMI
cape_enable=capemgr.enable_partno=BB-BONE-AUDI-02
When the board boots, I can see the right stuff in the kernel command line:
Kernel command line: console=ttyO0,115200n8
capemgr.disable_partno=BB-BONELT-HDMI capemgr.enable_partno=BB-BONE-AUDI-02
root=UUID=625467d4-5b2b-4ade-96f2-43a61ed56731 ro rootfstype=ext4 rootwait
fixrtc quiet
Kernel is: Linux 3.14.33-ti-r50 #1 SMP PREEMPT Wed Feb 11 18:16:43 UTC 2015
armv7l
I have BB-BONE-AUDI-02-00A0.dtbo in /lib/firmware, and the pins listed in
dmesg match what I would expect from the .dts file.
>From dmesg:
[ 2.665131] bone-pinmux-helper P9_25_pinmux.52: Set initial pinmux
mode to audio
[ 2.669150] bone-pinmux-helper P9_28_pinmux.55: Set initial pinmux
mode to audio
[ 2.670689] bone-pinmux-helper P9_29_pinmux.56: Set initial pinmux
mode to audio
[ 2.673912] bone-pinmux-helper P9_31_pinmux.58: Set initial pinmux
mode to audio
And in BB-BONE-AUDI-02-00A0.dts:
exclusive-use =
/* the pin header uses */
"P9.31", /* mcasp0: mcasp0_aclkx */
"P9.29", /* mcasp0: mcasp0_fsx */
"P9.28", /* mcasp0: mcasp0_axr2 */
"P9.25", /* mcasp0: mcasp0_ahclkx */
But when I try playing a WAV file with aplay, no sound comes out, but no
errors are reported.
Does it seem like it should be working, or am I missing something obvious?
Thanks,
Brandon
--
Brandon Stafford
Rascal Micro: small computers for art and science
Somerville, MA, USA
--
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