topic ESAI for SPDIF receiver usage in i.MX Processors

topic ESAI for SPDIF receiver usage in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/ESAI-for-SPDIF-receiver-usage/m-p/1181355#M164775 <P>Hi,</P><P>I'm using i.MX 6ULL for audio encoder product, Its need two SPDIF receive interface.</P><P>But i.MX only have one origin SPDIF receiver. I'm looking for ESAI to handle this.</P><P> </P><P>as the ESAI document says:</P><P>The Enhanced Serial Audio Interface (ESAI) provides a full-duplex serial port for serial communication with a variety of serial devices, including industry-standard codecs, Sony/Phillips Digital Interface (SPDIF) transceivers, and other DSPs.</P><P> </P><P>My question is: Does ESAI can working on SPDIF receiver mode and working together with i.MX's origin SPDIF(receiver), and any sample code for reference?</P> Wed, 11 Nov 2020 08:43:16 GMT xkwy 2020-11-11T08:43:16Z ESAI for SPDIF receiver usage https://community.nxp.com/t5/i-MX-Processors/ESAI-for-SPDIF-receiver-usage/m-p/1181355#M164775 <P>Hi,</P><P>I'm using i.MX 6ULL for audio encoder product, Its need two SPDIF receive interface.</P><P>But i.MX only have one origin SPDIF receiver. I'm looking for ESAI to handle this.</P><P> </P><P>as the ESAI document says:</P><P>The Enhanced Serial Audio Interface (ESAI) provides a full-duplex serial port for serial communication with a variety of serial devices, including industry-standard codecs, Sony/Phillips Digital Interface (SPDIF) transceivers, and other DSPs.</P><P> </P><P>My question is: Does ESAI can working on SPDIF receiver mode and working together with i.MX's origin SPDIF(receiver), and any sample code for reference?</P> Wed, 11 Nov 2020 08:43:16 GMT https://community.nxp.com/t5/i-MX-Processors/ESAI-for-SPDIF-receiver-usage/m-p/1181355#M164775 xkwy 2020-11-11T08:43:16Z Re: ESAI for SPDIF receiver usage https://community.nxp.com/t5/i-MX-Processors/ESAI-for-SPDIF-receiver-usage/m-p/1181418#M164779 <P>Hi xkwy</P> <P> </P> <P>in general this is possibe, use spdif dts as examples :</P> <P><A href="https://source.codeaurora.org/external/imx/linux-imx/tree/arch/arm/boot/dts/imx6ull-14x14-ddr3-arm2-wm8958.dts?h=imx_4.14.98_2.0.0_ga" target="_blank">https://source.codeaurora.org/external/imx/linux-imx/tree/arch/arm/boot/dts/imx6ull-14x14-ddr3-arm2-wm8958.dts?h=imx_4.14.98_2.0.0_ga</A></P> <P><A href="https://source.codeaurora.org/external/imx/linux-imx/tree/arch/arm/boot/dts/imx6ul-14x14-ddr3-arm2-spdif.dts?h=imx_4.14.98_2.0.0_ga" target="_blank">https://source.codeaurora.org/external/imx/linux-imx/tree/arch/arm/boot/dts/imx6ul-14x14-ddr3-arm2-spdif.dts?h=imx_4.14.98_2.0.0_ga</A></P> <P>spdif test description in</P> <P><A href="https://source.codeaurora.org/external/imx/imx-test/tree/test/mxc_spdif_test/doc?h=imx_5.4.47_2.2.0" target="_blank">https://source.codeaurora.org/external/imx/imx-test/tree/test/mxc_spdif_test/doc?h=imx_5.4.47_2.2.0</A></P> <P>and sect.7.5 Audio Mixer (AUDMIX)   <A style="box-sizing: border-box; background-color: transparent; color: #215bd6; text-decoration: none; cursor: pointer;" href="https://www.nxp.com/docs/en/reference-manual/IMX_REFERENCE_MANUAL.pdf" target="_blank" rel="noopener">i.MX Linux Reference Manual</A></P> <P><A href="https://source.codeaurora.org/external/imx/imx-test/tree/test/mxc_amix_test?h=imx_5.4.47_2.2.0" target="_blank">https://source.codeaurora.org/external/imx/imx-test/tree/test/mxc_amix_test?h=imx_5.4.47_2.2.0</A></P> <P> </P> <P>Best regards<BR />igor</P> Wed, 11 Nov 2020 10:00:51 GMT https://community.nxp.com/t5/i-MX-Processors/ESAI-for-SPDIF-receiver-usage/m-p/1181418#M164779 igorpadykov 2020-11-11T10:00:51Z Re: ESAI for SPDIF receiver usage https://community.nxp.com/t5/i-MX-Processors/ESAI-for-SPDIF-receiver-usage/m-p/1181425#M164780 <P>Hi, <SPAN>igorpadykov</SPAN></P><P><SPAN>Thanks for reply.</SPAN></P><P><SPAN>I have already know that the chip's SPDIF are working well just as you provide dts&doc links.</SPAN></P><P><SPAN>my question is that I need another SPDIF for my application(the chip only have one), can it reachable by ESAI?</SPAN></P><P> </P><P><SPAN>Best Regards!</SPAN></P><P> </P> Wed, 11 Nov 2020 10:10:56 GMT https://community.nxp.com/t5/i-MX-Processors/ESAI-for-SPDIF-receiver-usage/m-p/1181425#M164780 xkwy 2020-11-11T10:10:56Z Re: ESAI for SPDIF receiver usage https://community.nxp.com/t5/i-MX-Processors/ESAI-for-SPDIF-receiver-usage/m-p/1183899#M164956 <P>Hi xkwy</P> <P> </P> <P>> I need another SPDIF for my application(the chip only have one), can it reachable by ESAI?</P> <P> </P> <P>not sorry.</P> <P> </P> <P>Best regards<BR />igor</P> <P> </P> Mon, 16 Nov 2020 14:12:05 GMT https://community.nxp.com/t5/i-MX-Processors/ESAI-for-SPDIF-receiver-usage/m-p/1183899#M164956 igorpadykov 2020-11-16T14:12:05Z