Difference between revisions of "AOM-DB3500 AUDIO MIC1/OUT1"
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| − | | | + | | I2S0_HP_R |
| I | | I | ||
| I2S0 Right Headphone | | I2S0 Right Headphone | ||
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| 20 | | 20 | ||
| − | | | + | | I2S0_HP_L |
| I | | I | ||
| I2S0 Left Headphone | | I2S0 Left Headphone | ||
Latest revision as of 07:28, 19 November 2025
Contents
AOM-3821 supports three kinds of sound cards:
“1 rt5640-codec”(9696EG57001)
“2 hdmi”,
“3 dp0”.
AUDIO MIC1/OUT1（Compatible with ROM-EG57）
HW Pin Header
| I2S0 Connector Pin Definition | |||
| Pin | Signal | I/O | Description |
| 1 | I2S0_VDDA | I2S0 3.3V source | |
| 2 | GND | Ground | |
| 3 | I2S0_VDDA | 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 | Not Applicable | |
| 10 | GND | 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 | Ground | |
| 15 | N/A | Not Applicable | |
| 16 | I2S0_HP_R | I | I2S0 Right Headphone |
| 17 | I2S0_MIC_IN | I | I2S0 Microphone IN |
| 18 | GND | Ground | |
| 19 | GND | Ground | |
| 20 | I2S0_HP_L | I | I2S0 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
