Jostein Baustad / Mbed 2 deprecated WavPlayerUSB

Instead of holding the songs on a SD card, this one is for a USB stick

Dependencies:   WavPlayer mbed C12832 MSCFileSystem WavPlayerSD

main.cpp@2:b090afa8d3b9, 2019-03-30 (annotated)

Committer:
JostBaus
Date:
Sat Mar 30 16:25:41 2019 +0000
Revision:
2:b090afa8d3b9
Parent:
1:45d8f6557ff8
Child:
3:eb77b82ce461
WavPlayer using a SDCARD

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sarthakjaiswal 0:4b3056d3c684 1 #include "mbed.h"
JostBaus 2:b090afa8d3b9 2 #include "string.h"
JostBaus 2:b090afa8d3b9 3 #include "stdio.h"
JostBaus 2:b090afa8d3b9 4 #include "math.h"
JostBaus 2:b090afa8d3b9 5 #include "C12832.h"
sarthakjaiswal 0:4b3056d3c684 6 #include "wave_player.h"
JostBaus 2:b090afa8d3b9 7 #include "SDFileSystem.h"
sarthakjaiswal 0:4b3056d3c684 8 #include <string>
sarthakjaiswal 0:4b3056d3c684 9 using namespace std;
sarthakjaiswal 0:4b3056d3c684 10
JostBaus 2:b090afa8d3b9 11 //Communication\interfaces
JostBaus 2:b090afa8d3b9 12 Serial pc(USBTX,USBRX); //USB serial
JostBaus 2:b090afa8d3b9 13 C12832 lcd(p5, p7, p6, p8, p11); //LCD
JostBaus 2:b090afa8d3b9 14 SDFileSystem sd(p5, p6, p7, p8, "sd"); //SDCard
JostBaus 2:b090afa8d3b9 15 DigitalIn sdDetect(p17); //CardDetect
sarthakjaiswal 0:4b3056d3c684 16
JostBaus 2:b090afa8d3b9 17 //in- and outputs
JostBaus 2:b090afa8d3b9 18 DigitalIn PauseBtn(p21);
JostBaus 2:b090afa8d3b9 19 DigitalIn StopBtn(p22);
JostBaus 2:b090afa8d3b9 20
JostBaus 2:b090afa8d3b9 21 //joystick
JostBaus 2:b090afa8d3b9 22 BusIn joy(p15,p12,p13,p16);
JostBaus 2:b090afa8d3b9 23 DigitalIn joyBtn(p14);
JostBaus 2:b090afa8d3b9 24
JostBaus 2:b090afa8d3b9 25 //DAC output
JostBaus 2:b090afa8d3b9 26 AnalogOut DACout(p18);
JostBaus 2:b090afa8d3b9 27 wave_player waver(&DACout); //set up DAC to use wave player library
sarthakjaiswal 0:4b3056d3c684 28
sarthakjaiswal 0:4b3056d3c684 29
JostBaus 2:b090afa8d3b9 30 //timer
JostBaus 2:b090afa8d3b9 31 Timer dur;
JostBaus 2:b090afa8d3b9 32
JostBaus 2:b090afa8d3b9 33 //func
JostBaus 2:b090afa8d3b9 34 void read_file_names(char *dir); //SDCard read file names
JostBaus 2:b090afa8d3b9 35 void menu();
JostBaus 2:b090afa8d3b9 36 void PlaySong(int m);
JostBaus 2:b090afa8d3b9 37 void PauseSong();
JostBaus 2:b090afa8d3b9 38 void StopSong();
JostBaus 2:b090afa8d3b9 39
JostBaus 2:b090afa8d3b9 40 //variables
JostBaus 2:b090afa8d3b9 41 int m = 1; //index of choosen songs
JostBaus 2:b090afa8d3b9 42 int i = 0; //index of files from folder
JostBaus 2:b090afa8d3b9 43 int Paused = 0; //Is the song paused?
JostBaus 2:b090afa8d3b9 44 int Stopped = 0; //Is the song stopped?
JostBaus 2:b090afa8d3b9 45 char* songs[5];
JostBaus 2:b090afa8d3b9 46
JostBaus 2:b090afa8d3b9 47 int main()
JostBaus 2:b090afa8d3b9 48 {
JostBaus 2:b090afa8d3b9 49 while(sdDetect == 0) {
JostBaus 2:b090afa8d3b9 50 lcd.locate(0,0);
JostBaus 2:b090afa8d3b9 51 lcd.printf("Insert SD Card!!");
JostBaus 2:b090afa8d3b9 52 wait(0.5);
JostBaus 2:b090afa8d3b9 53 }
JostBaus 2:b090afa8d3b9 54 menu();
JostBaus 2:b090afa8d3b9 55 }
JostBaus 2:b090afa8d3b9 56
JostBaus 2:b090afa8d3b9 57 void menu()
JostBaus 2:b090afa8d3b9 58 {
JostBaus 2:b090afa8d3b9 59 lcd.cls();
JostBaus 2:b090afa8d3b9 60 sd.disk_initialize();
JostBaus 2:b090afa8d3b9 61 read_file_names("/sd/Music");
JostBaus 2:b090afa8d3b9 62 while(1) {
JostBaus 2:b090afa8d3b9 63 lcd.locate(0,0);
JostBaus 2:b090afa8d3b9 64 lcd.printf("Please select a song");
JostBaus 2:b090afa8d3b9 65 if(joy == 1) {
JostBaus 2:b090afa8d3b9 66 m++;
JostBaus 2:b090afa8d3b9 67 if(m == 5) {
JostBaus 2:b090afa8d3b9 68 m = 0;
JostBaus 2:b090afa8d3b9 69 }
JostBaus 2:b090afa8d3b9 70 } else if(joy == 2) {
JostBaus 2:b090afa8d3b9 71 m--;
JostBaus 2:b090afa8d3b9 72 if(m == -1) {
JostBaus 2:b090afa8d3b9 73 m = 4;
JostBaus 2:b090afa8d3b9 74 }
JostBaus 2:b090afa8d3b9 75 }
JostBaus 2:b090afa8d3b9 76 lcd.locate(0,15);
JostBaus 2:b090afa8d3b9 77 lcd.printf("%s", (songs[m]));
JostBaus 2:b090afa8d3b9 78 if(joyBtn == 1) {
JostBaus 2:b090afa8d3b9 79 PlaySong(m);
JostBaus 2:b090afa8d3b9 80 }
JostBaus 2:b090afa8d3b9 81 wait(0.1);
JostBaus 2:b090afa8d3b9 82 }
JostBaus 2:b090afa8d3b9 83 }
JostBaus 2:b090afa8d3b9 84
sarthakjaiswal 1:45d8f6557ff8 85 void read_file_names(char *dir) // function that reads in file names from sd cards
sarthakjaiswal 0:4b3056d3c684 86 {
sarthakjaiswal 0:4b3056d3c684 87 DIR *dp;
sarthakjaiswal 0:4b3056d3c684 88 struct dirent *dirp;
sarthakjaiswal 0:4b3056d3c684 89 dp = opendir(dir);
sarthakjaiswal 0:4b3056d3c684 90 //read all directory and file names in current directory into filename vector
sarthakjaiswal 0:4b3056d3c684 91 while((dirp = readdir(dp)) != NULL) {
JostBaus 2:b090afa8d3b9 92 songs[i] = dirp->d_name;
JostBaus 2:b090afa8d3b9 93 i++;
sarthakjaiswal 0:4b3056d3c684 94 }
sarthakjaiswal 0:4b3056d3c684 95 }
JostBaus 2:b090afa8d3b9 96
JostBaus 2:b090afa8d3b9 97 void PlaySong(int m)
sarthakjaiswal 0:4b3056d3c684 98 {
JostBaus 2:b090afa8d3b9 99 string songname = songs[m];
JostBaus 2:b090afa8d3b9 100 string a = "/sd/Music/";
JostBaus 2:b090afa8d3b9 101 string fname = a + songname; //retrieves the file name
JostBaus 2:b090afa8d3b9 102 FILE *wave_file;
JostBaus 2:b090afa8d3b9 103 dur.start();
sarthakjaiswal 0:4b3056d3c684 104 lcd.cls();
JostBaus 2:b090afa8d3b9 105 lcd.locate(0,0);
JostBaus 2:b090afa8d3b9 106 lcd.printf("Now playing");
JostBaus 2:b090afa8d3b9 107 wave_file = fopen(fname.c_str(),"r"); //opens the music file
JostBaus 2:b090afa8d3b9 108 waver.play(wave_file); //plays the music file
JostBaus 2:b090afa8d3b9 109 lcd.locate(0,10);
JostBaus 2:b090afa8d3b9 110 lcd.printf("%s", (songs[m]));
JostBaus 2:b090afa8d3b9 111 while(Stopped == 0) {
JostBaus 2:b090afa8d3b9 112 if(StopBtn == 1) {
JostBaus 2:b090afa8d3b9 113 StopSong();
JostBaus 2:b090afa8d3b9 114 }
JostBaus 2:b090afa8d3b9 115 if(PauseBtn == 1) {
JostBaus 2:b090afa8d3b9 116 PauseSong();
JostBaus 2:b090afa8d3b9 117 }
JostBaus 2:b090afa8d3b9 118 lcd.locate(0,20);
JostBaus 2:b090afa8d3b9 119 lcd.printf("%2.f s", dur.read());
JostBaus 2:b090afa8d3b9 120 }
JostBaus 2:b090afa8d3b9 121 fclose(wave_file);
JostBaus 2:b090afa8d3b9 122 menu();
sarthakjaiswal 0:4b3056d3c684 123 }
JostBaus 2:b090afa8d3b9 124
JostBaus 2:b090afa8d3b9 125 void PauseSong()
sarthakjaiswal 0:4b3056d3c684 126 {
JostBaus 2:b090afa8d3b9 127 if(Paused == 0) {
JostBaus 2:b090afa8d3b9 128 string songname = songs[m];
sarthakjaiswal 0:4b3056d3c684 129 unsigned index = songname.find(".wav");
sarthakjaiswal 0:4b3056d3c684 130 songname = songname.substr(0,index);
sarthakjaiswal 0:4b3056d3c684 131 lcd.printf(songname.c_str());
JostBaus 2:b090afa8d3b9 132 dur.stop();
JostBaus 2:b090afa8d3b9 133 Paused = 1;
JostBaus 2:b090afa8d3b9 134 } else {
JostBaus 2:b090afa8d3b9 135 Paused = 0;
sarthakjaiswal 0:4b3056d3c684 136 }
sarthakjaiswal 0:4b3056d3c684 137 }
sarthakjaiswal 0:4b3056d3c684 138
JostBaus 2:b090afa8d3b9 139 void StopSong()
sarthakjaiswal 0:4b3056d3c684 140 {
sarthakjaiswal 0:4b3056d3c684 141 lcd.cls();
JostBaus 2:b090afa8d3b9 142 dur.reset();
JostBaus 2:b090afa8d3b9 143 Stopped = 1;
sarthakjaiswal 0:4b3056d3c684 144 }
JostBaus 2:b090afa8d3b9 145
JostBaus 2:b090afa8d3b9 146
JostBaus 2:b090afa8d3b9 147
JostBaus 2:b090afa8d3b9 148