[AudioI] Nothing works on RPi3b+

Mon Oct 19 01:30:18 UTC 2020

On Sun, Oct 18, 2020 at 6:16 PM Matt <matt at audioinjector.net> wrote:
>
>
> On 19/10/20 10:17 am, Ian McKellar wrote:
>
> Hmm, still no luck. I tried matching the mixer settings from that linked forum post but had the same issue:
> pi at raspberrypi:~ $ aplay loop.wav
> Playing WAVE 'loop.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
> aplay: pcm_write:2053: write error: Input/output error
>
> It is possible this is a hardware error, if for example the clocks don't come up and the play command hangs for too long - it will throw an error.
>
> However to be sure, perhaps you can try speaker-test :
>
> speaker-test -Dplughw:0 -r48000 -c 2 -F S32_LE

pi at raspberrypi:~ $ speaker-test  -Dplughw:0 -r48000 -c 2 -F S32_LE

speaker-test 1.1.8

Playback device is plughw:0
Stream parameters are 48000Hz, S32_LE, 2 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 64 to 65536
Period size range from 32 to 32768
Using max buffer size 65536
Periods = 4
was set period_size = 16384
was set buffer_size = 65536
 0 - Front Left
Write error: -5,Input/output error
xrun_recovery failed: -5,Input/output error
Transfer failed: Input/output error

>
> You should hear noise coming out the speakers or the headphones.

I hear a soft click through my headphones - sounds like the audio
routing / dac / amp / whatever is being configured, but then nothing.
The write error and following lines come after 20s.

I might try attaching a logic analyzer to the i2s pins tonight and see
if I can see anything going by.
>
> The mixer settings below look ok.
>
>
> Here's the amixer output:
> Simple mixer control 'Master',0
>   Capabilities: pvolume
>   Playback channels: Front Left - Front Right
>   Limits: Playback 0 - 127
>   Mono:
>   Front Left: Playback 121 [95%] [0.00dB]
>   Front Right: Playback 121 [95%] [0.00dB]
> Simple mixer control 'Master Playback ZC',0
>   Capabilities: pswitch
>   Playback channels: Front Left - Front Right
>   Mono:
>   Front Left: Playback [off]
>   Front Right: Playback [off]
> Simple mixer control 'Sidetone',0
>   Capabilities: pvolume pvolume-joined
>   Playback channels: Mono
>   Limits: Playback 0 - 3
>   Mono: Playback 0 [0%] [-15.00dB]
> Simple mixer control 'Line',0
>   Capabilities: cswitch
>   Capture channels: Front Left - Front Right
>   Front Left: Capture [on]
>   Front Right: Capture [on]
> Simple mixer control 'Mic',0
>   Capabilities: cswitch cswitch-joined
>   Capture channels: Mono
>   Mono: Capture [off]
> Simple mixer control 'Mic Boost',0
>   Capabilities: volume volume-joined
>   Playback channels: Mono
>   Capture channels: Mono
>   Limits: 0 - 1
>   Mono: 1 [100%] [20.00dB]
> Simple mixer control 'Playback Deemphasis',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [off]
> Simple mixer control 'Capture',0
>   Capabilities: cvolume
>   Capture channels: Front Left - Front Right
>   Limits: Capture 0 - 31
>   Front Left: Capture 23 [74%] [0.00dB]
>   Front Right: Capture 23 [74%] [0.00dB]
> Simple mixer control 'ADC High Pass Filter',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [on]
> Simple mixer control 'Input Mux',0
>   Capabilities: enum
>   Items: 'Line In' 'Mic'
>   Item0: 'Mic'
> Simple mixer control 'Output Mixer HiFi',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [on]
> Simple mixer control 'Output Mixer Line Bypass',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [off]
> Simple mixer control 'Output Mixer Mic Sidetone',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [off]
> Simple mixer control 'Store DC Offset',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [off]
>
> On Sun, Oct 18, 2020 at 1:32 PM Matt <matt at audioinjector.net> wrote:
>>
>> Hi Ian,
>>
>> On 18/10/20 10:00 am, Ian McKellar via People wrote:
>>
>> I bought an AudioInjector Zero and I can't get it to work on the hardware I have.
>>
>> I believe I have it configured correctly. I'm running Linux 5.4.70-v7+ and have
>>
>> dtparam=i2c_arm=on
>> dtparam=i2s=on
>> dtoverlay=audioinjector-wm8731-audio
>>
>> in /boot/config.txt
>>
>> During boot dmesg gets:
>> [    8.939739] audioinjector-stereo soc:sound: ASoC: failed to init link AudioInjector audio: -517
>> [    8.939762] audioinjector-stereo soc:sound: snd_soc_register_card failed (-517)
>> [    9.295473] audioinjector-stereo soc:sound: ASoC: failed to init link AudioInjector audio: -517
>> [    9.295496] audioinjector-stereo soc:sound: snd_soc_register_card failed (-517)
>> [    9.330667] audioinjector-stereo soc:sound: ASoC: failed to init link AudioInjector audio: -517
>> [    9.330692] audioinjector-stereo soc:sound: snd_soc_register_card failed (-517)
>> [   10.051168] wm8731 1-001a: Assuming static MCLK
>> [   10.051223] wm8731 1-001a: 1-001a supply AVDD not found, using dummy regulator
>> [   10.051357] wm8731 1-001a: 1-001a supply HPVDD not found, using dummy regulator
>> [   10.051452] wm8731 1-001a: 1-001a supply DCVDD not found, using dummy regulator
>> [   10.051574] wm8731 1-001a: 1-001a supply DBVDD not found, using dummy regulator
>> [   10.067882] audioinjector-stereo soc:sound: wm8731-hifi <-> 3f203000.i2s mapping ok
>>
>>
>> Good news, this last line indicates that the sound card is setup in software and ready to go.
>>
>>
>> But when I try to play something, eg: aplay /usr/share/sounds/alsa/Noise.wav
>> it hangs and doesn't appear to be actually playing anything. Also dmesg gets:
>> [  224.002383] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
>>
>>
>> This dmesg error isn't related to the soundcard, it is related to the Pi's I2S driver.
>>
>>
>> Any ideas? Might I have done a terrible job soldering the pin socket?
>>
>>
>>
>> Have you toggled the setting in alsamixer which enables the output mixer hifi ? You can read about it on our old forum :
>>
>> http://forum.audioinjector.net/viewtopic.php@t=5.html#p7
>>
>> thanks
>>
>> Matt
>>
>>
>> --
>> Checkout the community email list :
>> https://lists.audioinjector.net/mailman/listinfo/people
>
>
>
> --
> Ian McKellar <http://ian.mckellar.org/>
> ian at mckellar.org - http://twitter.com/ian
>
> --
> Checkout the community email list :
> https://lists.audioinjector.net/mailman/listinfo/people

-- 
Ian McKellar <http://ian.mckellar.org/>
ian at mckellar.org - http://twitter.com/ian