Difference between revisions of "AOM-DB3500 AUDIO MIC2/OUT2"
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“1 rt5640-codec”(9696EG57001)<br/> “2 hdmi”, <br/> “3 dp0”. | “1 rt5640-codec”(9696EG57001)<br/> “2 hdmi”, <br/> “3 dp0”. | ||
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=== '''AUDIO MIC2/OUT2（Compatible with ROM-EG57）''' === | === '''AUDIO MIC2/OUT2（Compatible with ROM-EG57）''' === | ||
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'''HW Pin Header''' | '''HW Pin Header''' | ||
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=== '''Get sound card ID''' === | === '''Get sound card ID''' === | ||
Revision as of 07:29, 19 November 2025
Contents
AOM-3821 supports three kinds of sound cards:
“1 rt5640-codec”(9696EG57001)
“2 hdmi”,
“3 dp0”.
AUDIO MIC2/OUT2（Compatible with ROM-EG57）
HW Pin Header
| I2S1 Connector Pin Definition | |||
| Pin | Signal | I/O | Description |
| 1 | I2S1_VDDA | I2S1 3.3V source | |
| 2 | GND | Ground | |
| 3 | I2S1_VDDA | I2S1 3.3V source | |
| 4 | I2S1_SDIN_3.3 | I | I2S1 Serial Data IN 3.3V Level |
| 5 | I2S1_SDOUT_3.3 | O | I2S1 Serial Data OUT 3.3V Level |
| 6 | I2S1_LRCK_3.3 | I | I2S1 Left/Right Clock |
| 7 | I2S1_BCLK_3.3 | I | I2S1 Bit Clock |
| 8 | AUD1_MCK | I | Audio1 Master Clock |
| 9 | N/A | Not Applicable | |
| 10 | GND | Ground | |
| 11 | I2S1_I2C_CLK | I | I2S1 I2C clock input from host. |
| 12 | MIC_BIAS2 | I | For I2S1 Microphone Bias Voltage |
| 13 | I2S1_I2C_DAT | I/O | I2S1 I2C Data |
| 14 | GND | Ground | |
| 15 | N/A | Not Applicable | |
| 16 | I2S1_HP_R | I | I2S1 Right Headphone |
| 17 | I2S1_MIC_IN | I | I2S1 Microphone IN |
| 18 | GND | Ground | |
| 19 | GND | Ground | |
| 20 | I2S1_HP_L | I | I2S1 Left Headphone |
Get sound card ID
# cat /proc/asound/cards 0 [rockchiphdmiin ]: rockchip_hdmiin - rockchip,hdmiin rockchip,hdmiin 1 [rockchiprt5640c]: simple-card - rockchip,rt5640-codec rockchip,rt5640-codec 2 [rockchiphdmi0 ]: rockchip-hdmi0 - rockchip-hdmi0 rockchip-hdmi0 3 [rockchipdp0 ]: rockchip-dp0 - rockchip-dp0 rockchip-dp0
Record
Take Card ID 1 for example:
# arecord -Dplughw:1,0 -f S16_LE -r 16000 -d 10 -t wav test.wav
Playback
Take Card ID 1 for example:
# aplay -Dplughw:1,0 -t wav test.wav