https://becomwiki.live.md-websolutions.com/index.php?action=history&feed=atom&title=SPDIF_out_%28SBC-i.MX51%29 2026-05-13T13:31:13Z Versionsgeschichte dieser Seite in BECOM Systems Support MediaWiki 1.43.5 https://becomwiki.live.md-websolutions.com/index.php?title=SPDIF_out_(SBC-i.MX51)&diff=548&oldid=prev 2023-10-31T08:03:12Z

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Peter https://becomwiki.live.md-websolutions.com/index.php?title=SPDIF_out_(SBC-i.MX51)&diff=547&oldid=prev 2023-08-22T19:35:55Z

<p>1 Version importiert</p> <p><b>Neue Seite</b></p><div>The i.MX51 is able to output audio signals via the [https://en.wikipedia.org/wiki/Spdif SPDIF] line.<br /> <br /> See the [https://datasheets.becom-group.com/goto/SBC-i.MX51/SBC-i.MX51_HardwareUserManual_V2.pdf Hardware User Manual] for the location of the SPDIF signal.<br /> <br /> == Linux kernel configuration ==<br /> <br /> Device Drivers ---&gt;<br /> &lt;*&gt; Sound card support ---&gt;<br /> &lt;*&gt; Advanced Linux Sound Architecture ---&gt;<br /> &lt;*&gt; OSS Mixer API<br /> &lt;*&gt; OSS PCM (digital audio) API<br /> [*] OSS PCM (digital audio) API - Include plugin system<br /> [*] Support old ALSA API<br /> [*] Verbose procfs contents<br /> [*] ARM sound devices ---&gt;<br /> &lt;M&gt; MXC SPDIF sound card spport<br /> <br /> == Test in Linux ==<br /> <br /> * Load the appropriate kernel module<br /> root@sbc-imx51:~# modprobe snd-spdif<br /> MXC spdif support initialized<br /> root@sbc-imx51:~# <br /> <br /> * List available sound cards and PCMs:<br /> root@sbc-imx51:~# aplay -l<br /> **** List of PLAYBACK Hardware Devices ****<br /> card 0: imx3stack [imx-3stack], device 0: SGTL5000 SGTL5000-0 []<br /> Subdevices: 1/1<br /> Subdevice #0: subdevice #0<br /> card 1: TXRX [MXC SPDIF TX/RX], device 0: MXC_SPDIF [MXC_SPDIF]<br /> Subdevices: 1/1<br /> Subdevice #0: subdevice #0<br /> root@sbc-imx51:~# <br /> You can see that there is a second card &quot;MXC SPDIF&quot;.<br /> root@sbc-imx51:~# aplay -L<br /> null<br /> Discard all samples (playback) or generate zero samples (capture)<br /> default:CARD=imx3stack<br /> imx-3stack, <br /> Default Audio Device<br /> default:CARD=TXRX<br /> MXC SPDIF TX/RX, MXC_SPDIF<br /> Default Audio Device<br /> root@sbc-imx51:~#<br /> <br /> * Play sound file on SPDIF:<br /> root@sbc-imx51:~# aplay -D default:CARD=TXRX sample.wav<br /> Playing WAVE &#039;sample.wav&#039; : Unsigned 8 bit, Rate 8000 Hz, Stereo<br /> root@sbc-imx51:~#<br /> <br /> [[Category:SBC-i.MX51]]<br /> [[Category:i.MX]]</div>

en>Peter