Linux/DRA750: Audio sampling rate

Louis Liao

Part Number: DRA750

Tool/software: Linux

Hi experts,

Our customized board does not have codec chip, that is, CPU DAI do loopback test (ex: mcasp3 axr0, tx short mcasp3 axr1, rx).

Could J6 / J6eco can work on 32K/42K sampling rate without codec support on 3.02.00.03 GLSDK? (I use dummp codec bt-sco.c, but it only support 8k/16k)

BRs

Louis

over 6 years ago

0 Mariya Petkova over 6 years ago

TI__Expert 4885 points

Hi, Louis Liao,

THe query has been sent to an expert for comment.

Regards,
Mariya

0 Misael Lopez Cruz over 6 years ago in reply to Mariya Petkova

TI__Expert 8415 points

Louis,

Yes, McASP driver supports multiple sample rates, 32kHz is among them. 42kHz is not standard and is not supported by the driver.

Since the loopback test is for experimental purpose (I believe), try adding the 32kHz sample rate to the dummy code list of supported rates.

0 Louis Liao over 6 years ago in reply to Misael Lopez Cruz

Intellectual 310 points

Hi Misael,

Thank you very much

BRs
Louis

Processors

Processors forum

Linux/DRA750: Audio sampling rate