da7212 mkrzero接口

你好，

附近是我拥有的da7212的数据表。

问候，

尼拉达特

嗨查尔斯，

感谢您分享DA7212的更新数据表。使用数据表我已经在Arduino Mkrzero上写下了Follwing代码。在此代码中，MKRzero正在播放16位立体声WAV文件，我可以在我的ARD-Audio -Da7212音频屏蔽上聆听它。但似乎DA7212突然进入睡眠状态，音频停止。虽然mkrzero正在播放音频。此外，来自DA7212模块的音频不是立体声。请在这方面帮助。

此致，

尼拉达特。

#define codec_address 0x1a #include  #include  #include  // wave for to to const char filename [] =“music.wav”;//表示波浪文件sdwavefile wavefile的变量;void setup（）{//打开串行通信并等待端口打开：Serial.Begin（9600）;延迟（5000）;//根据您的突破板//的屏蔽设置SD卡//您可能需要在开头的SS Serial.print中传递PIN号（“初始化SD卡...”）;if（！sd.begin（））{serial.println（“初始化失败！”）;返回;erial.println（“完成初始化”。）;//创建一个sdwavefile wavefile = sdwavefile（文件名）;//检查波文件是否有效，if（！波浪文件）{serial.println（“Wave文件无效！”）; while (1); // do nothing } // print out some info. about the wave file Serial.print("Bits per sample = "); Serial.println(waveFile.bitsPerSample()); long channels = waveFile.channels(); Serial.print("Channels = "); Serial.println(channels); long sampleRate = waveFile.sampleRate(); Serial.print("Sample rate = "); Serial.print(sampleRate); Serial.println(" Hz"); long duration = waveFile.duration(); Serial.print("Duration = "); Serial.print(duration); Serial.println(" seconds"); ///////////////////////////////////////////////////////////////////// Initialization of DA7212 ///////////////////////////////////////////////////////////////// Wire.begin(); //WRITE DA7212 0x92 0x00 //Set Ramp rate to default delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x92); Wire.write(0x00); Wire.endTransmission(); //WRITE DA7212 0x90 0x80 //Enable Digital LDO delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x90); Wire.write(0x80); Wire.endTransmission(); //WRITE DA7212 0x29 0xC0 //Enable AIF 16bit I2S mode delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x29); Wire.write(0xC0); Wire.endTransmission(); //WRITE DA7212 0x22 0x0A //Set incoming sample rate to 44.1kHz delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x22); Wire.write(0x0A); Wire.endTransmission(); //WRITE DA7212 0x94 0x02 //Set PC sync to resync default delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x94); Wire.write(0x02); Wire.endTransmission(); //WRITE DA7212 0x27 0x04 //PLL_CTRL PLL disabled delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x27); Wire.write(0x04); Wire.endTransmission(); //WRITE DA7212 0x2A 0x32 //Route DAI to Outputs default delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x2A); Wire.write(0x32); Wire.endTransmission(); //WRITE DA7212 0x4B 0x08 //MIXOUT_L input from DACL delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x48); Wire.write(0x08); Wire.endTransmission(); //WRITE DA7212 0x4C 0x08 //MIXOUT_R input from DACR delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x4C); Wire.write(0x08); Wire.endTransmission(); //WRITE DA7212 0x47 0xCD //Enable charge pump, CP_MOD mode, CPVDD/1 and Boost CP delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x47); Wire.write(0xCD); Wire.endTransmission(); //WRITE DA7212 0x95 0x36 //Set CP threshold to 0x36 delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x95); Wire.write(0x36); Wire.endTransmission(); //WRITE DA7212 0x96 0xA5 //Set CP Tau DELAY to 64ms delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x96); Wire.write(0xA5); Wire.endTransmission(); //WRITE DA7212 0x48 0x2D //Set volume to -12dB delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x48); Wire.write(0x2D); Wire.endTransmission(); //WRITE DA7212 0x49 0x2D //Set volume to -12dB delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x49); Wire.write(0x2D); Wire.endTransmission(); //WRITE DA7212 0x51 0xF1 //Enable DAC, Mix and HP amplifiers delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0x51); Wire.write(0xF1); Wire.endTransmission(); //WRITE DA7212 0xFD 0x01 //Set tone gen gain to -18dBstem Active delay(100); Wire.beginTransmission(CODEC_ADDRESS); Wire.write(0xFD); Wire.write(0x01); Wire.endTransmission(); ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // adjust the playback volume AudioOutI2S.volume(50); // check if the I2S output can play the wave file if (!AudioOutI2S.canPlay(waveFile)) { Serial.println("unable to play wave file using I2S!"); while (1); // do nothing } // start playback Serial.println("starting playback"); AudioOutI2S.play(waveFile); } void loop() { // check if playback is still going on if (!AudioOutI2S.isPlaying()) { // playback has stopped Serial.println("playback stopped"); while (1); // do nothing } }