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Old 13th July 2019, 01:40 PM   #2821
amigo1 is offline amigo1
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Default Debian 10 Buster for Beaglebone Black!

Quote:
Originally Posted by miero View Post
Here you can disscuss and report issues with Botic Linux driver available at http://bbb.ieero.com/
Hi Miero! Maybe you can help? Using Debian 10 Buster is a good solution for Beaglebone black software upgrade!
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Old 18th July 2019, 07:14 AM   #2822
amigo1 is offline amigo1
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List of Linux OS used for Beaglebone Black for audio tasks.
1) Debian 10.0 2019-07-07 4GB SD IoT image Buster
BeagleBoard.org - latest-images
2) volumio-2.194-2017-06-11-bbb.img.zip
Beaglebone Black rev C - сетевой плеер - Arduino и Raspberry Pi - Форум по радиоэлектронике
3) RuneAudio 0.2-beta
Download RuneAudio from SourceForge.net
4) ArchLinux
Support for Botic Linux driver
Filebin
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Old Yesterday, 03:11 PM   #2823
Blitz is offline Blitz  Germany
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Location: Cologne, Germany
Is this the official uEnv.txt of Botic 7 ? There are tons of other, non-botic related entries in there....

platform-bbb/uEnv.txt at master * volumio/platform-bbb * GitHub

As this comes from Miero, I giess this entry is meant for Hermes/chronus:

snd_soc_botic.serconfig=MDR-

Can anyone using BbB and Hermes confirm that ?

......

From Miero's page:

"Emulation of mute pin on some of 1-4 data pins:
- kernel option snd_soc_davinci_mcasp.mute_pin
- file /sys/module/snd_soc_davinci_mcasp/parameters/mute_pin
which can be updated while system is running, but change
will be applied on the next start of playback

Supported values for mute_pin:
-1 ... mute pin functionality is disabled
or these additive numbers:
+ 1 ... signal mute on pin 0
+ 2 ... signal mute on pin 1
+ 4 ... signal mute on pin 2
+ 8 ... signal mute on pin 3
+ 16777216 ... invert the mute signal

For example (stereo playback of I2S/DSD on TPA Hermes-BBB):
$ echo 12 > /sys/module/snd_soc_davinci_mcasp/parameters/mute_pin
$ echo MD-- > /sys/module/snd_soc_botic/parameters/serconfig
Two pins are needed, because Hermes-BBB switches pins 2 and 3 when I2S/DSD mode
is switched. After playback start/stop there should appear a mute pin on D5
output pin of Cronus."

I am not sure what to put where as I am not a Linux expert...please help. Where need the $Echo commands get intoand how are they related to uEnv.txt.

Last edited by Blitz; Yesterday at 03:24 PM.
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Old Yesterday, 05:46 PM   #2824
Blitz is offline Blitz  Germany
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Quote:
Originally Posted by miero View Post
ChrisMmm, with new driver you need to use different data pin (P9_30), or set kernel option snd_soc_davinci.sermask=4 ... or 12 if you want 2ch DSD too.

twluke, lrck position is fixed on BBB. The Botic cape will remap/route pins to correct positions. That's why there is I2S/DSD format switch pin.
Have I missed something ? Where has this parameter been documented ?
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