Any version of RuneAudio likely to support this interesting HAT ?
[https://www.infineon.com/cms/en/product/evaluation-boards/kit_40w_amp_hat_zw/?redirId=119773]
Chris
by ceejayemm » 22 May 2020, 22:42
by rern » 25 May 2020, 08:29
by ceejayemm » 01 Jun 2020, 20:24
by rern » 02 Jun 2020, 05:30
cat /boot/config.txt
aplay -l
aplay -L
/srv/http/bash/mpd-data.sh
by ceejayemm » 02 Jun 2020, 09:49
1. Verify /boot/config.txt contains these 2 lines:
dtparam=i2s=on
dtoverlay=merus-amp
over_voltage=2
hdmi_drive=2
force_turbo=1
gpu_mem=32
initramfs initramfs-linux.img followkernel
max_usb_current=1
disable_splash=1
disable_overscan=1
dtparam=audio=off
dtparam=i2s=on
dtoverlay=merus-amp
aplay -l
root@raamp1+R e3:~ # aplay -l
aplay: device_list:274: no soundcards found...
aplay -L
root@raamp1+R e3:~ # aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
/srv/http/bash/mpd-data.sh
root@raamp1+R e3:~ # /srv/http/bash/mpd-data.sh
amixer: Mixer attach default error: No such file or directory
aplay: device_list:274: no soundcards found...
/srv/http/bash/mpd-devices.sh: line 51: ((: == 0 : syntax error: operand expected (error token is "== 0 ")
Invalid card number.
{ "devices":[{ "aplayname":"" , "card": , "device": , "dop":0 , "mixercount":1 , "mixermanual":"" , "mixertype":"software" , "name":" " , "hw":"" , "hwmixer":"" , "routecmd":"" }] , "mixerdevices":[""] , "audiooutput":"MERUS Audio Amp" , "audioaplayname":"merus-amp" , "autoplay":false , "autoupdate":false , "buffer":"" , "crossfade":0 , "ffmpeg":false , "mixertype":"software" , "mpd":true , "normalization":false , "reboot":"" , "replaygain":"off" , "usbdac":"" }
by ceejayemm » 02 Jun 2020, 11:36
root@raamp1+R e3:~ # aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sndrpimerusamp [snd_rpi_merus_amp], device 0: Merus Audio Amp ma120x0p-amp-0 [Merus Audio Amp ma120x0p-amp-0]
Subdevices: 1/1
Subdevice #0: subdevice #0
root@raamp1+R e3:~ # aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=sndrpimerusamp
snd_rpi_merus_amp, Merus Audio Amp ma120x0p-amp-0
Default Audio Device
sysdefault:CARD=sndrpimerusamp
snd_rpi_merus_amp, Merus Audio Amp ma120x0p-amp-0
Default Audio Device
root@raamp1+R e3:~ # /srv/http/bash/mpd-data.sh
MERUS Audio Amp
{ "devices":[{ "aplayname":"merus-amp" , "card":0 , "device":0 , "dop":0 , "mixercount":4 , "mixermanual":"" , "mixertype":"software" , "name":"MERUS Audio Amp" , "hw":"hw:0,0" , "hwmixer":"A.Mstr Vol" , "routecmd":"" }] , "mixerdevices":["A.Mstr Vol","B.L Vol","C.R Vol","D.Lim thresh","F.Limiter Enable","G.Limiter Attck","H.Limiter Rls","I.Err flycap","J.Err overcurr","K.Err pllerr","L.Err pvddunder","M.Err overtempw","N.Err overtempe","O.Err pinlowimp","P.Err dcprot","Q.PM Prof","R.Power Mode"] , "audiooutput":"MERUS Audio Amp" , "audioaplayname":"merus-amp" , "autoplay":false , "autoupdate":false , "buffer":"" , "crossfade":0 , "ffmpeg":false , "mixertype":"software" , "mpd":true , "normalization":false , "reboot":"" , "replaygain":"off" , "usbdac":"" }
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