Code:
#include <Audio.h>
#include <Wire.h>
#include <SD.h>
#include <SPI.h>
const int myInput = AUDIO_INPUT_LINEIN;
//const int myInput = AUDIO_INPUT_MIC;
// Create the Audio components. These should be created in the
// order data flows, inputs/sources -> processing -> outputs
//
//AudioInputAnalog analogPinInput(16); // analog A2 (pin 16)
AudioInputI2S audioInput; // audio shield: mic or line-in
AudioOutputI2S audioOutput; // audio shield: headphones & line-out
AudioPlayQueue myQueue;
// Create Audio connections between the components
//
AudioConnection c1(myQueue, 0, audioOutput, 0);
// Create an object to control the audio shield.
//
AudioControlSGTL5000 audioShield;
static int16_t sintable[] = {
0, 784, 1569, 2352, 3134, 3914, 4692, 5467,
6239, 7007, 7770, 8529, 9283, 10031, 10774, 11509,
12238, 12960, 13673, 14379, 15075, 15763, 16441, 17109,
17767, 18414, 19051, 19675, 20288, 20889, 21477, 22052,
22613, 23162, 23696, 24216, 24721, 25212, 25687, 26147,
26591, 27019, 27431, 27826, 28204, 28566, 28910, 29237,
29546, 29838, 30111, 30366, 30603, 30822, 31022, 31203,
31366, 31510, 31634, 31740, 31827, 31894, 31942, 31971,
31981, 31971, 31942, 31894, 31827, 31740, 31634, 31510,
31366, 31203, 31022, 30822, 30603, 30366, 30111, 29838,
29546, 29237, 28910, 28566, 28204, 27826, 27431, 27019,
26591, 26147, 25687, 25212, 24721, 24216, 23696, 23162,
22613, 22052, 21477, 20889, 20288, 19675, 19051, 18414,
17767, 17109, 16441, 15763, 15075, 14379, 13673, 12960,
12238, 11509, 10774, 10031, 9283, 8529, 7770, 7007,
6239, 5467, 4692, 3914, 3134, 2352, 1569, 784,
0, -784, -1569, -2352, -3134, -3914, -4692, -5467,
-6239, -7007, -7770, -8529, -9283, -10031, -10774, -11509,
-12238, -12960, -13673, -14379, -15075, -15763, -16441, -17109,
-17767, -18414, -19051, -19675, -20288, -20889, -21477, -22052,
-22613, -23162, -23696, -24216, -24721, -25212, -25687, -26147,
-26591, -27019, -27431, -27826, -28204, -28566, -28910, -29237,
-29546, -29838, -30111, -30366, -30603, -30822, -31022, -31203,
-31366, -31510, -31634, -31740, -31827, -31894, -31942, -31971,
-31981, -31971, -31942, -31894, -31827, -31740, -31634, -31510,
-31366, -31203, -31022, -30822, -30603, -30366, -30111, -29838,
-29546, -29237, -28910, -28566, -28204, -27826, -27431, -27019,
-26591, -26147, -25687, -25212, -24721, -24216, -23696, -23162,
-22613, -22052, -21477, -20889, -20288, -19675, -19051, -18414,
-17767, -17109, -16441, -15763, -15075, -14379, -13673, -12960,
-12238, -11509, -10774, -10031, -9283, -8529, -7770, -7007,
-6239, -5467, -4692, -3914, -3134, -2352, -1569, -784 };
int16_t *buf, *bufsave;
int i;
void setup() {
// Audio connections require memory to work. For more
// detailed information, see the MemoryAndCpuUsage example
AudioMemory(12);
// Enable the audio shield and set the output volume.
audioShield.enable();
audioShield.inputSelect(myInput);
audioShield.volume(0.6);
buf=myQueue.getBuffer();
bufsave=buf;
}
void loop() {
for(i=0;i<128;i++) {
*buf=sintable[i];
//Serial.println(*buf);
buf++;
}
//buf=bufsave;
myQueue.playBuffer();
}This generates a tone ( well half a tone ) but after awhile the teensy goes away ( usb port unrecognized ). If I leave "buf=bufsave" in no tone. Any idea where I am going wrong?