WavSpiller_Oppgave / Mbed 2 deprecated WavPlayerSD

WavSpiller having the songs on an SDCard

Dependencies:   WavPlayer mbed C12832 SDFileSystem

Dependents:   WavPlayerUSB WavPlayerUSB

main.cpp@5:166fa9e3c8e3, 2019-04-14 (annotated)

Committer:
JostBaus
Date:
Sun Apr 14 16:27:52 2019 +0000
Revision:
5:166fa9e3c8e3
Parent:
4:efd586e5c9a7 
Changed pins to match the circuit board, replaced the wavplayer.h lib with another one

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"
JostBaus 4:efd586e5c9a7 6 #include "WavPlayer.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 4:efd586e5c9a7 14 SDFileSystem sd(p11, p12, p13, p15, "sd"); //SDCard
JostBaus 4:efd586e5c9a7 15 DigitalIn sdDetect(p14); //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 4:efd586e5c9a7 22 BusIn joy(p19,p17,p18,p20);
JostBaus 2:b090afa8d3b9 23 DigitalIn joyBtn(p14);
JostBaus 2:b090afa8d3b9 24
JostBaus 2:b090afa8d3b9 25 //DAC output
JostBaus 4:efd586e5c9a7 26 WavPlayer waver; //set up DAC to use wave player library
sarthakjaiswal 0:4b3056d3c684 27
sarthakjaiswal 0:4b3056d3c684 28
JostBaus 2:b090afa8d3b9 29 //timer
JostBaus 2:b090afa8d3b9 30 Timer dur;
JostBaus 2:b090afa8d3b9 31
JostBaus 2:b090afa8d3b9 32 //func
JostBaus 2:b090afa8d3b9 33 void read_file_names(char *dir); //SDCard read file names
JostBaus 2:b090afa8d3b9 34 void menu();
JostBaus 2:b090afa8d3b9 35 void PlaySong(int m);
JostBaus 2:b090afa8d3b9 36 void PauseSong();
JostBaus 2:b090afa8d3b9 37 void StopSong();
JostBaus 2:b090afa8d3b9 38
JostBaus 2:b090afa8d3b9 39 //variables
JostBaus 2:b090afa8d3b9 40 int m = 1; //index of choosen songs
JostBaus 2:b090afa8d3b9 41 int i = 0; //index of files from folder
JostBaus 2:b090afa8d3b9 42 int Paused = 0; //Is the song paused?
JostBaus 2:b090afa8d3b9 43 int Stopped = 0; //Is the song stopped?
JostBaus 3:eb77b82ce461 44 char* songs[];
JostBaus 2:b090afa8d3b9 45
JostBaus 2:b090afa8d3b9 46 int main()
JostBaus 2:b090afa8d3b9 47 {
JostBaus 2:b090afa8d3b9 48 while(sdDetect == 0) {
JostBaus 2:b090afa8d3b9 49 lcd.locate(0,0);
JostBaus 3:eb77b82ce461 50 lcd.printf("Insert SD Card!");
JostBaus 2:b090afa8d3b9 51 wait(0.5);
JostBaus 2:b090afa8d3b9 52 }
JostBaus 2:b090afa8d3b9 53 menu();
JostBaus 2:b090afa8d3b9 54 }
JostBaus 2:b090afa8d3b9 55
JostBaus 2:b090afa8d3b9 56 void menu()
JostBaus 2:b090afa8d3b9 57 {
JostBaus 2:b090afa8d3b9 58 lcd.cls();
JostBaus 2:b090afa8d3b9 59 sd.disk_initialize();
JostBaus 2:b090afa8d3b9 60 read_file_names("/sd/Music");
JostBaus 2:b090afa8d3b9 61 while(1) {
JostBaus 2:b090afa8d3b9 62 lcd.locate(0,0);
JostBaus 2:b090afa8d3b9 63 lcd.printf("Please select a song");
JostBaus 2:b090afa8d3b9 64 if(joy == 1) {
JostBaus 2:b090afa8d3b9 65 m++;
JostBaus 2:b090afa8d3b9 66 if(m == 5) {
JostBaus 2:b090afa8d3b9 67 m = 0;
JostBaus 2:b090afa8d3b9 68 }
JostBaus 2:b090afa8d3b9 69 } else if(joy == 2) {
JostBaus 2:b090afa8d3b9 70 m--;
JostBaus 2:b090afa8d3b9 71 if(m == -1) {
JostBaus 2:b090afa8d3b9 72 m = 4;
JostBaus 2:b090afa8d3b9 73 }
JostBaus 2:b090afa8d3b9 74 }
JostBaus 2:b090afa8d3b9 75 lcd.locate(0,15);
JostBaus 2:b090afa8d3b9 76 lcd.printf("%s", (songs[m]));
JostBaus 2:b090afa8d3b9 77 if(joyBtn == 1) {
JostBaus 2:b090afa8d3b9 78 PlaySong(m);
JostBaus 2:b090afa8d3b9 79 }
JostBaus 2:b090afa8d3b9 80 wait(0.1);
JostBaus 2:b090afa8d3b9 81 }
JostBaus 2:b090afa8d3b9 82 }
JostBaus 2:b090afa8d3b9 83
sarthakjaiswal 1:45d8f6557ff8 84 void read_file_names(char *dir) // function that reads in file names from sd cards
sarthakjaiswal 0:4b3056d3c684 85 {
sarthakjaiswal 0:4b3056d3c684 86 DIR *dp;
sarthakjaiswal 0:4b3056d3c684 87 struct dirent *dirp;
sarthakjaiswal 0:4b3056d3c684 88 dp = opendir(dir);
sarthakjaiswal 0:4b3056d3c684 89 //read all directory and file names in current directory into filename vector
sarthakjaiswal 0:4b3056d3c684 90 while((dirp = readdir(dp)) != NULL) {
JostBaus 2:b090afa8d3b9 91 songs[i] = dirp->d_name;
JostBaus 2:b090afa8d3b9 92 i++;
sarthakjaiswal 0:4b3056d3c684 93 }
sarthakjaiswal 0:4b3056d3c684 94 }
JostBaus 2:b090afa8d3b9 95
JostBaus 2:b090afa8d3b9 96 void PlaySong(int m)
sarthakjaiswal 0:4b3056d3c684 97 {
JostBaus 2:b090afa8d3b9 98 string songname = songs[m];
JostBaus 2:b090afa8d3b9 99 string a = "/sd/Music/";
JostBaus 2:b090afa8d3b9 100 string fname = a + songname; //retrieves the file name
JostBaus 2:b090afa8d3b9 101 FILE *wave_file;
JostBaus 2:b090afa8d3b9 102 dur.start();
sarthakjaiswal 0:4b3056d3c684 103 lcd.cls();
JostBaus 2:b090afa8d3b9 104 lcd.locate(0,0);
JostBaus 2:b090afa8d3b9 105 lcd.printf("Now playing");
JostBaus 2:b090afa8d3b9 106 wave_file = fopen(fname.c_str(),"r"); //opens the music file
JostBaus 4:efd586e5c9a7 107 waver.open(wave_file);
JostBaus 4:efd586e5c9a7 108 waver.play(); //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 3:eb77b82ce461 127 while(1) {
JostBaus 3:eb77b82ce461 128 if(Paused == 0) {
JostBaus 3:eb77b82ce461 129 string songname = songs[m];
JostBaus 3:eb77b82ce461 130 unsigned index = songname.find(".wav");
JostBaus 3:eb77b82ce461 131 songname = songname.substr(0,index);
JostBaus 3:eb77b82ce461 132 lcd.printf(songname.c_str());
JostBaus 3:eb77b82ce461 133 dur.stop();
JostBaus 3:eb77b82ce461 134 Paused = 1;
JostBaus 3:eb77b82ce461 135 } else if(StopBtn == 1) {
JostBaus 3:eb77b82ce461 136 StopSong();
JostBaus 3:eb77b82ce461 137 } else {
JostBaus 3:eb77b82ce461 138 Paused = 0;
JostBaus 3:eb77b82ce461 139 dur.start();
JostBaus 3:eb77b82ce461 140 }
sarthakjaiswal 0:4b3056d3c684 141 }
sarthakjaiswal 0:4b3056d3c684 142 }
sarthakjaiswal 0:4b3056d3c684 143
JostBaus 2:b090afa8d3b9 144 void StopSong()
sarthakjaiswal 0:4b3056d3c684 145 {
sarthakjaiswal 0:4b3056d3c684 146 lcd.cls();
JostBaus 2:b090afa8d3b9 147 dur.reset();
JostBaus 2:b090afa8d3b9 148 Stopped = 1;
sarthakjaiswal 0:4b3056d3c684 149 }
JostBaus 2:b090afa8d3b9 150
JostBaus 2:b090afa8d3b9 151
JostBaus 2:b090afa8d3b9 152
JostBaus 2:b090afa8d3b9 153