Bureaucrats, dave_user, Administrators
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<section begin=History/>
{| style="border-collapse:collapse; "
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!style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Issue Date
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|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|2024/02/13
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==Audio==
=== Description ===
The Audio interface available on the Evaluation Kit at the connector J27.
J27 is a 7x2x2.54mm header. The audio codec is a TLV320AIC3100 device connected to the I²S interface.
[[File:AXEL Lite-EVB-Audio-connector.png|thumb|center| 500px|Audio connector]]
===Signals ===
The following table describes the interface signals:
{| class="wikitable"
! latexfontsize="scriptsize"| Pin#
! latexfontsize="scriptsize"| Pin name
! latexfontsize="scriptsize"| Pin function
! latexfontsize="scriptsize"| Pin Notes
|-
| 4, 5, 8, 9 || AGNDM Analog || Ground ||
|-
| 1 || AUX_RES || Analog ground||
|-
| 2 || AUXR || Microphone in right ||
|-
| 3 || AUXL || Microphone in left||
|-
| 6 || SPKM || Speaker out (negative) ||
|-
| 7 || SPKP || Speaker out (positive) ||
|-
| 10 || HSOR || Audio Headset right||
|-
| 11 || HSOL || Audio Headset left||
|-
| 12 || MIC_BIAS || Microphone bias ||
|-
| 13 || AUD_HP_VGND || Analog ground||
|}
=== Device mapping ===
The Audio interface is mapped to <code>card0</code> ALSA device in Linux. The ALSA peripheral <code>#0: SBCX_TLV320</code> can be accessed via alsa-utils with hardware address 0.
=== Device usage ===
For example, it is possible to play a file using <code>aplay</code>
<section begin=Body/>
[[Category:AURA]]
{| style="border-collapse:collapse; "
!colspan="4" style="width:100%; text-align:left"; border-bottom:solid 2px #ededed"|History
|-
!style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Issue Date
!style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Notes
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|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|2024/02/13
|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|First documentation release
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<section end=History/>
__FORCETOC__
<section begin=Body/>
==Audio==
=== Description ===
The Audio interface available on the Evaluation Kit at the connector J27.
J27 is a 7x2x2.54mm header. The audio codec is a TLV320AIC3100 device connected to the I²S interface.
[[File:AXEL Lite-EVB-Audio-connector.png|thumb|center| 500px|Audio connector]]
===Signals ===
The following table describes the interface signals:
{| class="wikitable"
! latexfontsize="scriptsize"| Pin#
! latexfontsize="scriptsize"| Pin name
! latexfontsize="scriptsize"| Pin function
! latexfontsize="scriptsize"| Pin Notes
|-
| 4, 5, 8, 9 || AGNDM Analog || Ground ||
|-
| 1 || AUX_RES || Analog ground||
|-
| 2 || AUXR || Microphone in right ||
|-
| 3 || AUXL || Microphone in left||
|-
| 6 || SPKM || Speaker out (negative) ||
|-
| 7 || SPKP || Speaker out (positive) ||
|-
| 10 || HSOR || Audio Headset right||
|-
| 11 || HSOL || Audio Headset left||
|-
| 12 || MIC_BIAS || Microphone bias ||
|-
| 13 || AUD_HP_VGND || Analog ground||
|}
=== Device mapping ===
The Audio interface is mapped to <code>card0</code> ALSA device in Linux. The ALSA peripheral <code>#0: SBCX_TLV320</code> can be accessed via alsa-utils with hardware address 0.
=== Device usage ===
For example, it is possible to play a file using <code>aplay</code>
<section begin=Body/>
[[Category:AURA]]