Wave Shield Code Question

code: [select]


#include <fatreader.h>
#include <sdreader.h>
#include <avr/pgmspace.h>
#include "waveutil.h"
#include "wavehc.h"


sdreader card;    // object holds information card
fatvolume vol;    // holds information partition on card
fatreader root;   // holds information filesystem on card
fatreader f;      // holds information file we're play

wavehc wave;      // wave (audio) object, since play 1 @ time

//#define debounce 5  // button debouncer
//
//// here define buttons we'll use. button "1" first, button "6" 6th, etc
//byte buttons[] = {14, 15, 16, 17, 18, 19};
//// handy macro lets determine how big array above is, checking size
//#define numbuttons sizeof(buttons)
//// track if button pressed, released, or 'pressed' (the current state
//volatile byte pressed[numbuttons], justpressed[numbuttons], justreleased[numbuttons];

// handy function return number of bytes free in ram, great debugging!   
int freeram(void)
{
  extern int  __bss_end;
  extern int  *__brkval;
  int free_memory;
  if((int)__brkval == 0) {
    free_memory = ((int)&free_memory) - ((int)&__bss_end);
  }
  else {
    free_memory = ((int)&free_memory) - ((int)__brkval);
  }
  return free_memory;
}

void sderrorcheck(void)
{
  if (!card.errorcode()) return;
  putstring("\n\rsd i/o error: ");
  serial.print(card.errorcode(), hex);
  putstring(", ");
  serial.println(card.errordata(), hex);
  while(1);
}

void setup() {
  byte i;
 
  // set serial port
  serial.begin(9600);
  putstring_nl("wavehc ");
//  serial.print(numbuttons, dec);
//  putstring_nl("buttons");
 
  putstring("free ram: ");       // can debugging, running out of ram bad
  serial.println(freeram());      // if under 150 bytes may spell trouble!
 
  // set output pins dac control. pins defined in library
  pinmode(2, output);
  pinmode(3, output);
  pinmode(4, output);
  pinmode(5, output);

  // pin13 led
  pinmode(13, output);

//  // make input & enable pull-up resistors on switch pins
//  (i=0; i< numbuttons; i++) {
//    pinmode(buttons[i], input);
//    digitalwrite(buttons[i], high);
//  }
 
  //  if (!card.init(true)) { //play 4 mhz spi if 8mhz isn't working you
  if (!card.init()) {         //play 8 mhz spi (default faster!) 
    putstring_nl("card init. failed!");  // went wrong, lets print out why
    sderrorcheck();
    while(1);                            // 'halt' - nothing!
  }
 
  // enable optimize read - cards may timeout. disable if you're having problems
  card.partialblockread(true);

// fat partition!
  uint8_t part;
  (part = 0; part < 5; part++) {     // have 5 slots in
    if (vol.init(card, part))
      break;                             // found one, lets bail
  }
  if (part == 5) {                       // if ended not finding one  :(
    putstring_nl("no valid fat partition!");
    sderrorcheck();      // went wrong, lets print out why
    while(1);                            // 'halt' - nothing!
  }
 
  // lets tell user found
  putstring("using partition ");
  serial.print(part, dec);
  putstring(", type fat");
  serial.println(vol.fattype(),dec);     // fat16 or fat32?
 
  // try open root directory
  if (!root.openroot(vol)) {
    putstring_nl("can't open root dir!"); // went wrong,
    while(1);                             // 'halt' - nothing!
  }
 
  // whew! got past tough parts.
  putstring_nl("ready!");
 
  tccr2a = 0;
  tccr2b = 1<<cs22 | 1<<cs21 | 1<<cs20;

  //timer2 overflow interrupt enable
  timsk2 |= 1<<toie2;


}

//signal(timer2_ovf_vect) {
//  check_switches();
//}
//
//void check_switches()
//{
//  static byte previousstate[numbuttons];
//  static byte currentstate[numbuttons];
//  byte index;
//
//  (index = 0; index < numbuttons; index++) {
//    currentstate[index] = digitalread(buttons[index]);   // read button
//   
    /*     
    serial.print(index, dec);
    serial.print(": cstate=");
    serial.print(currentstate[index], dec);
    serial.print(", pstate=");
    serial.print(previousstate[index], dec);
    serial.print(", press=");
    */
//   
//    if (currentstate[index] == previousstate[index]) {
//      if ((pressed[index] == low) && (currentstate[index] == low)) {
//          // pressed
//          justpressed[index] = 1;
//      }
//      else if ((pressed[index] == high) && (currentstate[index] == high)) {
//          // released
//          justreleased[index] = 1;
//      }
//      pressed[index] = !currentstate[index];  // remember, digital high means not pressed
//    }
//    //serial.println(pressed[index], dec);
//    previousstate[index] = currentstate[index];   // keep running tally of buttons
//  }
//}

void loop(){
playcomplete("songone.wav");

//  if (counter == 1){
// 
//  playcomplete("songone.wav");
//  }
//  else if (counter == 2){
// 
//  playcomplete("songtwo.wav");
//  }
//  else if (counter == 3){
// 
//  playcomplete("songthree.wav");
 
  }
 
//  if (justpressed[0]) {
//      justpressed[0] = 0;
//      playcomplete("do.wav");
//  }
//  if (justpressed[1]) {
//      justpressed[1] = 0;
//      playcomplete("re.wav");
//  }
//  if (justpressed[2]) {
//      justpressed[2] = 0;
//      playcomplete("mi.wav");
//  }
//  if (justpressed[3]) {
//      justpressed[3] = 0;
//      playcomplete("fa.wav");
//  }
//  if (justpressed[4]) {
//      justpressed[4] = 0;
//      playcomplete("so.wav");
//  }
//  if (justpressed[5]) {
//      justpressed[5] = 0;
//      playcomplete("la.wav");
//  }




// plays full file beginning end no pause.
void playcomplete(char *name) {
  // call our helper find , play name
  playfile(name);
  while (wave.isplaying) {
  // nothing while playing
  }
  // done playing
}

void playfile(char *name) {
  // see if wave object doing something
  if (wave.isplaying) {// playing something, stop it!
    wave.stop(); // stop it
  }
  // in root directory , open file
  if (!f.open(root, name)) {
    putstring("couldn't open file "); serial.print(name); return;
  }
  // ok read file , turn wave object
  if (!wave.create(f)) {
    putstring_nl("not valid wav"); return;
  }
 
  // ok time play! start playback
  wave.play();
}




i've made work before, not today. compiles fine on serial monitor shows bunch of this:wavehc
free ram: 676
wavehc
free
free ram: 676
wavehc
free ram: 676
wavehc
free ram: 676
wavehc
free ram: 676

is commented out code part of problem, or not? if not, rid of it!.

clearly, doing causing arduino reset. add more serial.print() statements, see getting to/not getting to. code between gets , not problem.

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