void TMRpcm::play(SDFile myFile) {
sdFile = myFile;
if(speakerPin != lastSpeakPin) {
setPin();
lastSpeakPin=speakerPin;
}
stopPlayback();
if(!wavInfo(myFile) ) {
return; //verify its a valid wav file
}
if(myFile.isOpen()) {
playing = 1;
myFile.seekSet(44); //skip the header info
for(int i=0; i<buffSize; i++) {
buffer[0][i] = myFile.read();
}
whichBuff = false;
buffEmpty[0] = false;
buffEmpty[1] = true;
//if(pwmMode){resolution = 8;}else{resolution = 4;}
resolution = 8;
resolution = resolution * (1000000/SAMPLE_RATE); //Serial.println(resolution);
volModMax = (resolution*1.5) / 248 ;
volMod = constrain(volMod, 1, volModMax);
//noInterrupts();
*ICRn[tt] = resolution;
*OCRnA[tt] = *OCRnB[tt] = 1;
//if(pwmMode){
*TCCRnA[tt] = _BV(WGM11) | _BV(COM1A1) | _BV(COM1B0) | _BV(COM1B1); //WGM11,12,13 all set to 1 = fast PWM/w ICR TOP
*TCCRnB[tt] = _BV(WGM13) | _BV(WGM12) | _BV(CS10);
// }else{
// Serial.println("A punto de comenzar a reproducir");
// *TCCRnA[tt] = _BV(COM1A1) | _BV(COM1B0) | _BV(COM1B1);
// *TCCRnB[tt] = _BV(WGM13) | _BV(CS10);
// }
*TIMSK[tt] = ( _BV(ICIE1) | _BV(TOIE1) );
//interrupts();
} else {
Serial.println("Read fail");
}
}
void TMRpcm::play(char* filename){
pinMode(speakerPin, OUTPUT);
stopPlayback();
Serial.print("Playing: ");Serial.println(filename);
if(!wavInfo(filename) ){ return; }//verify its a valid wav file
if(sFile){sFile.close();}
sFile = SD.open(filename);
if(sFile){
// wavInfo(filename); //verify its a valid wav file
sFile.seek(44); //skip the header info
for(int i=0; i<buffSize; i++){ buffer[0][i] = sFile.read(); }
whichBuff = false; buffEmpty[0] = false; buffEmpty[1] = true;
startPlayback();
//Serial.println(cycles);
}else{Serial.println("failed to open music file"); }
}
void TMRpcm::play(char* filename, unsigned long seekPoint){
if(speakerPin != lastSpeakPin){
#if !defined (MODE2)
setPin();
#else
setPins();
#endif
lastSpeakPin=speakerPin;
}
stopPlayback();
if(!wavInfo(filename)){
#if defined (debug)
Serial.println("WAV ERROR");
#endif
return;
}//verify its a valid wav file
if(seekPoint > 0){ seekPoint = (SAMPLE_RATE*seekPoint) + fPosition();
seek(seekPoint); //skip the header info
}
playing = 1; bitClear(optionByte,7); //paused = 0;
if(SAMPLE_RATE > 45050 ){ SAMPLE_RATE = 24000;
#if defined (debug)
Serial.print("SAMPLE RATE TOO HIGH: ");
Serial.println(SAMPLE_RATE);
#endif
}
#if !defined (USE_TIMER2)
//if(qual)
if(bitRead(optionByte,6)){resolution = 10 * (800000/SAMPLE_RATE);}
else{ resolution = 10 * (1600000/SAMPLE_RATE);
}
#else
resolution = 255;
if(SAMPLE_RATE < 9000){
*TCCRnB[tt] &= ~_BV(CS20);
*TCCRnB[tt] |= _BV(CS21);
}else{
*TCCRnB[tt] &= ~_BV(CS21);
*TCCRnB[tt] |= _BV(CS20);
}
#endif
byte tmp = (sFile.read() + sFile.peek()) / 2;
#if defined(rampMega)
if(bitRead(optionByte,5)){
*OCRnA[tt] = 0; *OCRnB[tt] = resolution;
timerSt();
for(unsigned int i=0; i < resolution; i++){
*OCRnB[tt] = constrain(resolution-i,0,resolution);
//if(bitRead(*TCCRnB[tt],0)){
// for(int i=0; i<10; i++){
// while(*TCNT[tt] < resolution-50){}
// }
//}else{
delayMicroseconds(150);
//}
}
}
bitClear(optionByte,5);
#endif
//rampUp = 0;
unsigned int mod;
if(volMod > 0){ mod = *OCRnA[tt] >> volMod; }else{ mod = *OCRnA[tt] << (volMod*-1); }
