Jurs,
I followed your recommendations but it did not seem to make much of a difference. Instead, I noticed that if I stopped the player, then waited for a second before toggling the next track, the player was more stable and did not freeze. So I added a pause after the instruction to stop the player. The pause had to be at least 1000ms for me to see a difference in stability. Do you know why this might be?
Kidd
***************************************************
* This is an example for the Adafruit VS1053 Codec Breakout
*
* Designed specifically to work with the Adafruit VS1053 Codec Breakout
* ----> https://www.adafruit.com/products/1381
*
* Adafruit invests time and resources providing this open source code,
* please support Adafruit and open-source hardware by purchasing
* products from Adafruit!
*
* Written by Limor Fried/Ladyada for Adafruit Industries.
* BSD license, all text above must be included in any redistribution
****************************************************/
// This code modified by Kidd in order to determine if player can play a file while the
//loop continues to function and the instructions to the GPIO pins work.
// include SPI, MP3 and SD libraries
#include <SPI.h>
#include <Adafruit_VS1053.h>
#include <SD.h>
// define the pins used
//#define CLK 13 // SPI Clock, shared with SD card
//#define MISO 12 // Input data, from VS1053/SD card
//#define MOSI 11 // Output data, to VS1053/SD card
// Connect CLK, MISO and MOSI to hardware SPI pins.
// See http://arduino.cc/en/Reference/SPI "Connections"
// These are the pins used for the breakout example
#define BREAKOUT_RESET 9 // VS1053 reset pin (output)
#define BREAKOUT_CS 10 // VS1053 chip select pin (output)
#define BREAKOUT_DCS 8 // VS1053 Data/command select pin (output)
// These are the pins used for the music maker shield
#define SHIELD_RESET -1 // VS1053 reset pin (unused!)
#define SHIELD_CS 7 // VS1053 chip select pin (output)
#define SHIELD_DCS 6 // VS1053 Data/command select pin (output)
// These are common pins between breakout and shield
#define CARDCS 4 // Card chip select pin
// DREQ should be an Int pin, see http://arduino.cc/en/Reference/attachInterrupt
#define DREQ 3 // VS1053 Data request, ideally an Interrupt pin
#define PAUSE 1000
Adafruit_VS1053_FilePlayer musicPlayer =
// create breakout-example object!
//Adafruit_VS1053_FilePlayer(BREAKOUT_RESET, BREAKOUT_CS, BREAKOUT_DCS, DREQ, CARDCS);
// create shield-example object!
Adafruit_VS1053_FilePlayer(SHIELD_RESET, SHIELD_CS, SHIELD_DCS, DREQ, CARDCS);
void setup() {
Serial.begin(9600);
Serial.println(F("Adafruit VS1053 Simple Test"));
Serial.println(F("Modified by Kidd for radio restoration"));
Serial.println(F("Select a track number on the keyboard and press ENTER"));
if (! musicPlayer.begin()) { // initialise the music player
Serial.println(F("Couldn't find VS1053, do you have the right pins defined?"));
while (1);
}
Serial.println(F("VS1053 found"));
SD.begin(CARDCS); // initialise the SD card
// Set volume for left, right channels. lower numbers == louder volume!
musicPlayer.setVolume(10,10);
// Timer interrupts are not suggested, better to use DREQ interrupt!
//musicPlayer.useInterrupt(VS1053_FILEPLAYER_TIMER0_INT); // timer int
// If DREQ is on an interrupt pin (on uno, #2 or #3) we can do background
// audio playing
musicPlayer.useInterrupt(VS1053_FILEPLAYER_PIN_INT); // DREQ int
}
void loop() {
if (Serial.available()) {
char c = Serial.read();
// if we get an 's' on the serial console, stop!
if (c == 's') {
musicPlayer.stopPlaying();
}
// if we get an 'p' on the serial console, pause/unpause!
if (c == 'p') {
if (! musicPlayer.paused()) {
Serial.println("Paused");
musicPlayer.pausePlaying(true);
}
else {
Serial.println("Resumed");
musicPlayer.pausePlaying(false);
}
}
//Play track 001 if serial "1"input on monitor
if (c == '1') {
musicPlayer.stopPlaying();
Serial.println(F("Player stopping."));
delay(PAUSE); //Added for stability
musicPlayer.startPlayingFile("track001.mp3");
Serial.println(F("Playing track 001"));
c=='0'; // Reset variable c so it is not '1' when loop swings around or track 001
// will start repeatedly and freeze
}
if (c=='2') {
musicPlayer.stopPlaying();
Serial.println(F("Player stopping."));
delay(PAUSE);
musicPlayer.startPlayingFile("track002.mp3");
Serial.println(F("Playing track 002"));
c=='0';
}
if (c=='3') {
musicPlayer.stopPlaying();
Serial.println(F("Player stopping."));
delay(PAUSE);
musicPlayer.startPlayingFile("track003.m4a");
Serial.println(F("Playing track 003"));
c=='0';
}
if (c=='4') {
musicPlayer.stopPlaying();
Serial.println(F("Player stopping."));
delay(PAUSE);
musicPlayer.startPlayingFile("track004.m4a");
Serial.println(F("Playing track 004"));
c=='0';
}
if (c=='5') {
musicPlayer.stopPlaying();
Serial.println(F("Player stopping."));
delay(PAUSE);
musicPlayer.startPlayingFile("track005.m4a");
Serial.println(F("Playing track 005"));
c=='0';
}
if (c=='6') {
musicPlayer.stopPlaying();
Serial.println(F("Player stopping."));
delay(PAUSE);
musicPlayer.startPlayingFile("track006.m4a");
Serial.println(F("Playing track 006"));
c=='0';
}
if (c=='7') {
musicPlayer.stopPlaying();
Serial.println(F("Player stopping."));
delay(PAUSE);
musicPlayer.startPlayingFile("track007.m4a");
Serial.println(F("Playing track 007"));
c=='0';
}
if (c=='8') {
musicPlayer.stopPlaying();
Serial.println(F("Player stopping."));
delay(PAUSE);
musicPlayer.startPlayingFile("track008.m4a");
Serial.println(F("Playing track 008"));
c=='0';
}
}
}