A S / Mbed 2 deprecated aos_mbed

Advanced Operating Systems - Final Project A @ Tokyo Tech ////////////// Author: Chu Van Thiem and Sidik Soleman ////////////// A WAVE file player on the MBED Application Board with an interface to a software on PC via a TCP connection. ////////////// Main functions: 1. Browse files of an attached USB flash 2. The list of the files of the attached USB are displayed on the LCD 3. Use an joystick to select a WAVE file and give an instruction to play that file 4. Adjust the volume using a potentiometer 5. Output audio to the analog audio out jack ////////////// Software (https://github.com/thiemcv/VS/tree/master/Terminal): 1. Connect with the MBED application board via Ethernet connection 2. Read the list of files stored on the USB flash 3. Write files to the USB flash

Dependencies:   C12832_lcd EthernetInterface USBHost mbed-rtos mbed wave_player

src/main.cpp@1:3b567aa3b09e, 2014-02-02 (annotated)

Committer:
aos
Date:
Sun Feb 02 10:49:19 2014 +0000
Revision:
1:3b567aa3b09e
Parent:
0:6a2537e4188b
Child:
2:5bc47e544b8d
Final Project V1: Integrated WAV player + USB file management via ethernet connection

Who changed what in which revision?

UserRevisionLine numberNew contents of line
aos 0:6a2537e4188b 1 #include "mbed.h"
aos 1:3b567aa3b09e 2 #include "rtos.h"
aos 0:6a2537e4188b 3 #include "EthernetInterface.h"
aos 1:3b567aa3b09e 4 #include "USBHostMSD.h"
aos 1:3b567aa3b09e 5 #include "usb.h"
aos 1:3b567aa3b09e 6 #include "tcp_task.h"
aos 1:3b567aa3b09e 7 #include "player.h"
aos 1:3b567aa3b09e 8
aos 1:3b567aa3b09e 9 extern Ticker ticker;
aos 1:3b567aa3b09e 10 extern Ticker tickervolume;
aos 1:3b567aa3b09e 11 extern volatile int joyvalue;
aos 1:3b567aa3b09e 12
aos 1:3b567aa3b09e 13 // Ethernet
aos 1:3b567aa3b09e 14 EthernetInterface eth;
aos 1:3b567aa3b09e 15
aos 1:3b567aa3b09e 16 // Analog Out Jack
aos 1:3b567aa3b09e 17 //AnalogOut DACout(p18);
aos 1:3b567aa3b09e 18 // On Board Speaker
aos 1:3b567aa3b09e 19 //PwmOut PWMout(p26);
aos 1:3b567aa3b09e 20 // Wave file player
aos 1:3b567aa3b09e 21 //wave_player waver(&DACout,&PWMout);
aos 1:3b567aa3b09e 22
aos 1:3b567aa3b09e 23 string songfile;
aos 1:3b567aa3b09e 24 char* song;
aos 1:3b567aa3b09e 25
aos 1:3b567aa3b09e 26 volatile int cmd_en = 1;
aos 1:3b567aa3b09e 27 volatile int play_en = 1;
aos 0:6a2537e4188b 28
aos 0:6a2537e4188b 29 int main() {
aos 1:3b567aa3b09e 30 int current = 0;
aos 1:3b567aa3b09e 31 // USB
aos 1:3b567aa3b09e 32 usb u("usb");
aos 1:3b567aa3b09e 33 while(!u.connect())
aos 1:3b567aa3b09e 34 {
aos 1:3b567aa3b09e 35 Thread::wait(5);
aos 1:3b567aa3b09e 36 }
aos 1:3b567aa3b09e 37 u.listdir("/");
aos 1:3b567aa3b09e 38 /*u.listdir("/");
aos 0:6a2537e4188b 39
aos 1:3b567aa3b09e 40 for(vector<string>::iterator it = u.filenames.begin(); it < u.filenames.end(); it++)
aos 1:3b567aa3b09e 41 {
aos 1:3b567aa3b09e 42 printf("%s\n", it->c_str());
aos 1:3b567aa3b09e 43 }*/
aos 1:3b567aa3b09e 44 /*
aos 1:3b567aa3b09e 45 FILE *wave_file;
aos 1:3b567aa3b09e 46 //setup PWM hardware for a Class D style audio output
aos 1:3b567aa3b09e 47 PWMout.period(1.0/400000.0);
aos 1:3b567aa3b09e 48 //open wav file and play it
aos 1:3b567aa3b09e 49 string s = "/usb/";
aos 1:3b567aa3b09e 50 s.append((u.filenames.begin())->c_str());
aos 1:3b567aa3b09e 51 wave_file=fopen(s.c_str(),"r");
aos 1:3b567aa3b09e 52 waver.play(wave_file);
aos 1:3b567aa3b09e 53 fclose(wave_file);
aos 1:3b567aa3b09e 54 */
aos 0:6a2537e4188b 55
aos 1:3b567aa3b09e 56 // Initialize ethernet interface
aos 1:3b567aa3b09e 57 eth.init(IP_ADDR, IP_MASK, GW_ADDR);
aos 1:3b567aa3b09e 58 eth.connect();
aos 1:3b567aa3b09e 59 //printf("Network setup completed!\n");
aos 0:6a2537e4188b 60
aos 1:3b567aa3b09e 61 // LCD
aos 1:3b567aa3b09e 62 welcome();
aos 1:3b567aa3b09e 63 /* print initiate */
aos 1:3b567aa3b09e 64 print(&(u.filenames), 0);
aos 1:3b567aa3b09e 65 /* reading the joystick value */
aos 1:3b567aa3b09e 66 ticker.attach(joystickcontrol, 0.004);
aos 1:3b567aa3b09e 67 /* reading the volume */
aos 1:3b567aa3b09e 68 tickervolume.attach(controlvolume, 0.004);
aos 1:3b567aa3b09e 69
aos 1:3b567aa3b09e 70 // TCPIP thread
aos 1:3b567aa3b09e 71 Thread thread_tcp(tcp_thread, NULL, osPriorityBelowNormal, 512, NULL);
aos 1:3b567aa3b09e 72 Thread thread_cmd(cmd_thread, &u, osPriorityBelowNormal, 2048, NULL);
aos 1:3b567aa3b09e 73
aos 1:3b567aa3b09e 74 while(1)
aos 1:3b567aa3b09e 75 {
aos 1:3b567aa3b09e 76 if (joyvalue == 1){
aos 1:3b567aa3b09e 77 if(u.filenames.size()>0){
aos 1:3b567aa3b09e 78 current = (current-1)%u.filenames.size();
aos 1:3b567aa3b09e 79 print(&(u.filenames),current);
aos 1:3b567aa3b09e 80 }
aos 1:3b567aa3b09e 81 }
aos 1:3b567aa3b09e 82 else if (joyvalue == 2){
aos 1:3b567aa3b09e 83 if(u.filenames.size()>0){
aos 1:3b567aa3b09e 84 current = (current+1)%u.filenames.size();
aos 1:3b567aa3b09e 85 print(&(u.filenames),current);
aos 1:3b567aa3b09e 86 }
aos 1:3b567aa3b09e 87 }
aos 1:3b567aa3b09e 88 else if (joyvalue == 3){
aos 1:3b567aa3b09e 89 if(u.filenames.size()>0){
aos 1:3b567aa3b09e 90 if (play_en)
aos 1:3b567aa3b09e 91 {
aos 1:3b567aa3b09e 92 cmd_en = 0;
aos 1:3b567aa3b09e 93 songfile = "/usb/";
aos 1:3b567aa3b09e 94 songfile = songfile + u.filenames.at(current);
aos 1:3b567aa3b09e 95 song = (char*)songfile.c_str();
aos 1:3b567aa3b09e 96 play(song);
aos 1:3b567aa3b09e 97 cmd_en = 1;
aos 1:3b567aa3b09e 98 }
aos 1:3b567aa3b09e 99 }
aos 1:3b567aa3b09e 100 }
aos 1:3b567aa3b09e 101 joyvalue = 0;
aos 1:3b567aa3b09e 102 Thread::wait(5);
aos 0:6a2537e4188b 103 }
aos 0:6a2537e4188b 104 }