i.MX ProcessorsのトピックHow to make iMx6 ASRC as SPDIF Back-End/Front-End

How to make iMx6 ASRC as SPDIF Back-End/Front-End

arc_lin — Mon, 23 Jul 2018 10:22:12 GMT

Hi Community,

My goal is to make 48kHz audio file can be playback in SPDIF 44.1kHz or 96kHz output. It need ASRC support.

I have tried to add ASCR as SPDIF sound card dai_link but totally not working.

Does anyone have done this before and could provide us some advice or reference code?

Thanks!

Arc.

Re: How to make iMx6 ASRC as SPDIF Back-End/Front-End

igorpadykov — Tue, 24 Jul 2018 09:55:43 GMT

Hi arc

one can try asrc unit test with i.MX6Q Sabre SD reference board

mxc_asrc_test\test - imx-test - i.MX Driver Test Application Software

and with Linux 4.9.88_2.0.0 Demo Images

https://www.nxp.com/webapp/Download?colCode=L4.9.88_2.0.0_MX6QDLSOLOX&appType=license&location=null&Parent_nodeId=133769…

Documentation

https://www.nxp.com/webapp/Download?colCode=L4.9.88_2.0.0_LINUX_DOCS&Parent_nodeId=1337699481071706174845&Parent_pageTyp…

sources

linux-imx - i.MX Linux kernel

Best regards
igor
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Re: How to make iMx6 ASRC as SPDIF Back-End/Front-End

arc_lin — Thu, 20 Dec 2018 03:58:21 GMT

Hi,

mxc_asrc_test is workable, but for some reason we need to combine ASRC and SPDIF in kernel driver,

Like SabreSD support WM8962 with ASRC FE/BE, and I know it needs professional services.

Thanks!

Arc.