1. 簡介

• 專欄總目錄
• 本文是基于RK3588平臺，音頻芯片ES8388調試總結。
• 外接聲卡：ES8388

2. 音頻ES8388調試

2.1 調試總覽，調試步驟分析

• 步驟 ① dts配置
• 步驟 ② 編譯燒寫，調試

2.2 dts配置

• 系統(tǒng)聲音配置：

  es8388_sound: es8388-sound {
          status = "okay";
          compatible = "rockchip,multicodecs-card";
          rockchip,card-name = "rockchip-es8388";
          hp-det-gpio = <&gpio1 RK_PD5 GPIO_ACTIVE_LOW>;
          io-channels = <&saradc 3>;
          io-channel-names = "adc-detect";
          keyup-threshold-microvolt = <1800000>;
          poll-interval = <100>;
          spk-con-gpio = <&gpio1 RK_PD3 GPIO_ACTIVE_HIGH>;
          hp-con-gpio = <&gpio1 RK_PD2 GPIO_ACTIVE_HIGH>;
          rockchip,format = "i2s";
          rockchip,mclk-fs = <256>;
          rockchip,cpu = <&i2s0_8ch>;
          rockchip,codec = <&es8388>;
          rockchip,audio-routing =
              "Headphone", "LOUT1",
              "Headphone", "ROUT1",
              "Speaker", "LOUT2",
              "Speaker", "ROUT2",
              "Headphone", "Headphone Power",
              "Headphone", "Headphone Power",
              "Speaker", "Speaker Power",
              "Speaker", "Speaker Power",
              "LINPUT1", "Main Mic",
              "LINPUT2", "Main Mic",
              "RINPUT1", "Headset Mic",
              "RINPUT2", "Headset Mic";
          pinctrl-names = "default";
          pinctrl-0 = <&hp_det>;
          play-pause-key {
              label = "playpause";
              linux,code = <KEY_PLAYPAUSE>;
              press-threshold-microvolt = <2000>;
          };
      };
  

• ES8388設備驅動配置

  &i2c7 {
      status = "okay";
      es8388: es8388@11 {
          status = "okay";
          #sound-dai-cells = <0>;
          compatible = "everest,es8388", "everest,es8323";
          reg = <0x11>;
          clocks = <&cru I2S0_8CH_MCLKOUT>;
          clock-names = "mclk";
          assigned-clocks = <&cru I2S0_8CH_MCLKOUT>;
          assigned-clock-rates = <12288000>;
          pinctrl-names = "default";
          pinctrl-0 = <&i2s0_mclk>;
      };
  };
  

2.3 編譯燒寫，調試

• 查看聲卡命令：cat /proc/asound/cards

• 將wav文件拷貝到板子上：

  adb root
  adb remount
  adb push C:\adb\test.wav mnt
  

• RK Android 播放音樂 ( RK Android SDK 標配 tiny-alsa 工具 ):

  adb shell
  cd /mnt
  tinyplay ./test.wav -D 0 -d 0
  

• RK Android 錄音：

  tinycap /sdcard/test.wav 
  
  播放錄音
  cd /sdcard
  tinyplay ./test.wav -D 0 -d 0
  

• RK Linux 播放音樂 （ RK Linux SDK 標配 alsa-utils 工具 ）

   aplay  test.wav
  

  或者

  aplay -Dplughw:0,0 test.wav
  
  aplay -Dplughw:1,0 test.wav
  
  aplay -Dplughw:2,0 test.wav
  
  -Dplughw:x  表示指定第幾個聲卡
  

  或者

  aplay -D plughw:CARD=rockchipes8388 test.wav
  

• RK Linux 錄音文章來源地址http://www.zghlxwxcb.cn/news/detail-653342.html

  arecord -D hw:1,0 -d 10 -f cd -r 44100 -c 2 -t wav test.wav
  
  -d 10表示錄制10秒聲音，test.wav是保存的文件名稱
  
  -D hw:x  表示指定第幾個聲卡
  
  -r 指定采樣率，-f 指定每個采樣點的位數(shù)--樣本大小
  
  

ArmSoM 產(chǎn)品介紹： http://wiki.armsom.org/index.php/ArmSoM-w3

ArmSoM 技術論壇： http://forum.armsom.org/

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