main.cpp

00001 // example to test the mbed Lab Board lcd lib with the mbed rtos
00002 // Pot1 changes the contrast
00003 // Pot2 changes the speed of the sin wave
00004 
00005 #include "mbed.h"
00006 #include "rtos.h"
00007 #include "stdio.h"
00008 #include "SDFileSystem.h"
00009 #include "wave_player.h"
00010 
00011 DigitalOut led1(LED1);
00012 DigitalOut led2(LED2);
00013 DigitalOut led3(LED3);
00014 
00015 SDFileSystem sd(p5, p6, p7, p8, "sd");
00016 AnalogOut DACout(p18);
00017 wave_player waver(&DACout);
00018 
00019 // mutex to make the lcd lib thread safe
00020 Mutex spk_mutex;
00021 
00022 
00023 // Thread 6
00024 // Speaker
00025 void thread6(void const *args)
00026 {
00027     FILE *wave_file;
00028     while(true) {         // thread loop
00029         
00030         spk_mutex.lock();
00031         wave_file=fopen("/sd/sound01.wav","r");
00032         spk_mutex.unlock();
00033         
00034         waver.play(wave_file);
00035         
00036         spk_mutex.lock();
00037         fclose(wave_file);
00038         spk_mutex.unlock();
00039         
00040         //Thread::wait(500); // wait 
00041     }
00042 }
00043     
00044 
00045 int main()
00046 {
00047     
00048     Thread t6(thread6); //start thread6
00049     
00050     while(true) {       // main is the next thread
00051         
00052        //Thread::wait(1000); // wait 0.5s
00053     
00054     } 
00055     
00056 }