Does anybody make dmic work on blaze or panda?

sally wang

I am using arecord -D hw:0,10 on omap4 blaze installed 2.6.35-180 Linux Ubuntu kernel. I get set_param error. Does anybody make dmic work on omap4 blaze or panda?

Sally

over 14 years ago

0 Israel Cepeda over 13 years ago

TI__Expert 5515 points

Sally,

The arecord application is falling because you are trying to open an audio Back End, and that is not correct.

The way how alsa works in OMAP4 using ABE is to open a Front End connected to an audio Back End, you can look at the OMAP4 Audio Driver here: http://www.omappedia.org/wiki/Audio_Drive_Arch

ie you could record from MM_UL2 Front End if you set the path from dmic to there, and then run arecord -D hw:0,1 file.wav

Regards!

ICE

0 Jayabharath Goluguri over 13 years ago in reply to Israel Cepeda

TI__Prodigy 670 points

On the panda - in the record path there is one thing you should keep in mind that is documented here:

http://omappedia.org/wiki/PandaBoard_FAQ#I_am_not_able_to_record_Audio_using_Mic-in.3F

Note: I dont know for sure if the same note applies to Blaze platform.

Processors

Processors forum

Does anybody make dmic work on blaze or panda?