View source for AOM-DB3500 AUDIO MIC1/OUT1


=== '''AOM-3821&nbsp;supports three kinds of sound cards:&nbsp;''' ===

“1 rt5640-codec”(9696EG57001)<br/> “2 hdmi”,&nbsp;<br/> “3 dp0”.

=== '''AUDIO MIC1/OUT1（Compatible with ROM-EG57）''' ===

'''HW Pin Header'''

'''[[File:AOM-DB3500 AUDIO 1.png|RTENOTITLE]]'''[[File:AOM-DB3500 AUDIO PIn header.png|RTENOTITLE]]

{| border="1" cellpadding="1" cellspacing="1" style="width: 500px;"
|-
| colspan="4" | '''I2S0 Connector Pin Definition'''
|-
| '''Pin'''
| '''Signal'''
| '''I/O'''
| '''Description'''
|-
| 1
| I2S0_VDDA
| &nbsp;
| I2S0 3.3V source
|-
| 2
| GND
| &nbsp;
| Ground
|-
| 3
| I2S0_VDDA
| &nbsp;
| I2S0 3.3V source
|-
| 4
| I2S0_SDIN_3.3
| I
| I2S0 Serial Data IN 3.3V Level
|-
| 5
| I2S0_SDOUT_3.3
| O
| I2S0 Serial Data OUT 3.3V Level
|-
| 6
| I2S0_LRCK_3.3
| I
| I2S0 Left/Right Clock
|-
| 7
| I2S0_BCLK_3.3
| I
| I2S0 Bit Clock
|-
| 8
| AUD0_MCK
| I
| Audio0 Master Clock
|-
| 9
| N/A
| &nbsp;
| Not Applicable
|-
| 10
| GND
| &nbsp;
| Ground
|-
| 11
| I2S0_I2C_CLK
| I
| I2S0 I2C clock input from host.
|-
| 12
| MIC_BIAS1
| I
| For I2S0 Microphone Bias Voltage
|-
| 13
| I2S0_I2C_DAT
| I/O
| I2S0 I2C Data
|-
| 14
| GND
| &nbsp;
| Ground
|-
| 15
| N/A
| &nbsp;
| Not Applicable
|-
| 16
| I2S1_HP_R
| I
| I2S0 Right Headphone
|-
| 17
| I2S0_MIC_IN
| I
| I2S0 Microphone IN
|-
| 18
| GND
| &nbsp;
| Ground
|-
| 19
| GND
| &nbsp;
| Ground
|-
| 20
| I2S1_HP_L
| I
| I2S0 Left Headphone
|}

[[File:AOM-DB3500 AUDIO1.png|RTENOTITLE]]

=== '''Get sound card ID''' ===
<pre># cat /proc/asound/cards
0 [rockchiphdmiin ]: rockchip_hdmiin - rockchip,hdmiin
&nbsp;rockchip,hdmiin
&nbsp;1 [rockchiprt5640c]: simple-card - rockchip,rt5640-codec
&nbsp;rockchip,rt5640-codec
&nbsp;2 [rockchiphdmi0 ]: rockchip-hdmi0 - rockchip-hdmi0
&nbsp;rockchip-hdmi0
&nbsp;3 [rockchipdp0 ]: rockchip-dp0 - rockchip-dp0
&nbsp;rockchip-dp0
</pre>

=== '''Record'''<br/> Take Card ID 1 for example: ===
<pre># arecord -Dplughw:1,0 -f S16_LE -r 16000 -d 10 -t wav test.wav
</pre>

=== '''Playback'''<br/> Take Card ID 1 for example: ===
<pre># aplay -Dplughw:1,0 -t wav test.wav</pre>

[[File:AOM-DB3500 AUDIO Function.png|RTENOTITLE]]