40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
//
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// Arduino Audio Tools - Audio Out Example for STM32F411 Discovery Board
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// This example generates a sine wave and outputs it via I2S to the on-board DAC
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// The example uses the AudioBoardStream class which is a subclass of
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// I2SCodecStream
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//
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#include "AudioTools.h"
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#include "AudioTools/AudioLibs/AudioBoardStream.h"
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AudioInfo info(44100, 2, 16);
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SineGenerator<int16_t> sineWave;
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GeneratedSoundStream<int16_t> sound(sineWave);
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AudioBoardStream out(STM32F411Disco);
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StreamCopy copier(out, sound); // copies sound into i2s
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// Arduino Setup
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void setup(void) {
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// Open Serial
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Serial.begin(115200);
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while(!Serial) delay(100);
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AudioLogger::instance().begin(Serial, AudioLogger::Warning);
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AudioDriverLogger.begin(Serial, AudioDriverLogLevel::Info);
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// start I2S
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Serial.println("starting I2S...");
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auto config = out.defaultConfig(TX_MODE);
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config.copyFrom(info);
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if (!out.begin(config)) {
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Serial.println("error!");
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stop();
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}
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// Setup sine wave
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sineWave.begin(info, N_B4);
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Serial.println("started...");
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}
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// Arduino loop - copy sound to out
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void loop() { copier.copy(); }
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