i.MX ProcessorsのトピックRe: How can I test audio

How can I test audio

zhengcl — Wed, 23 Dec 2015 10:32:25 GMT

Hi,

We are working on imx6q using android4.4.2. I want to test audio which is sgtl5000. When I run "aplay" command in the serial terminal coming from the debug port, it shows error "aplay: not found", show as follow:

root@sabresd_6dq:/ # aplay

/system/bin/sh: aplay: not found

127|root@sabresd_6dq:/ #

How can I test the audio in the serial terminal coming from the debug port?

thanks!

Re: How can I test audio

igorpadykov — Wed, 23 Dec 2015 12:08:42 GMT

Hi zhengcl

Sabre boards do not have sgtl5000, you can test it for example with

releases from boundary devices, as their boards have sgtl5000:

https://boundarydevices.com/android-kitkat-pre-release-mx6/

Best regards

igor

-----------------------------------------------------------------------------------------------------------------------

Note: If this post answers your question, please click the Correct Answer button. Thank you!

-----------------------------------------------------------------------------------------------------------------------

Re: How can I test audio

zhengcl — Wed, 23 Dec 2015 13:36:36 GMT

Hi igorpadykov,

I have ported sgtl5000 drivers to android kk4.4.2 with imx6q, and I can find sgtl5000 drivers in the boot logs.

How can I test the audio in the serial terminal coming from the debug port?

Below is the ALSA log from kernel boot log

……

sgtl5000 0-000a: Failed to get supply 'VDDD': -19

print_constraints: 0-000a: 850 <--> 1600 mV at 1200 mV normal

mmc0: new high speed DDR MMC card at address 0001

mmcblk0: mmc0:0001 SEM08G 7.28 GiB

mmcblk0boot0: mmc0:0001 SEM08G partition 1 2.00 MiB

mmcblk0boot1: mmc0:0001 SEM08G partition 2 2.00 MiB

hub 2-1.1:1.0: USB hub found

hub 2-1.1:1.0: 4 ports detected

sgtl5000 0-000a: sgtl5000 revision 17

mmcblk0: p1 p2 p3 < p5 p6 p7 p8 > p4

mmcblk0: p4 size 13090816 extends beyond EOD, truncated

mmcblk0boot1: unknown partition table

mmcblk0boot0: unknown partition table

asoc: sgtl5000 <-> imx-ssi.1 mapping ok

imx_3stack asoc driver

asoc: mxc-hdmi-soc <-> imx-hdmi-soc-dai.0 mapping ok

ALSA device list:

#0: sgtl5000-audio

#1: imx-hdmi-soc

……

I attached boot logs.

Re: How can I test audio

igorpadykov — Wed, 23 Dec 2015 13:44:53 GMT

do you provide VDDD externally? check

http://cache.freescale.com/files/analog/doc/errata/SGTL5000ER.pdf

sgtl5000 testing is described on

https://boundarydevices.com/audio-output-selection-under-linux-on-i-mx6/

~igor

Re: How can I test audio

zhengcl — Thu, 24 Dec 2015 07:46:21 GMT

We provide VDDD externally。

sgtl5000 testing described on https://boundarydevices.com/audio-output-selection-under-linux-on-i-mx6/ is under inux, however, I want to test sgtl5000 under android. Is there no difference between them?

thanks!

Re: How can I test audio

zhengcl — Wed, 20 Jan 2016 08:46:41 GMT

使用 tinyplay xxx.wav 可以播放音频。