ESE519 / Mbed 2 deprecated AppBoard_Waveplayer

Lab4

Dependencies:   USBHost mbed wave_player_appbd

Fork of AppBoard_Waveplayer by jim hamblen

main.cpp@13:1b26be6d53ad, 2015-03-03 (annotated)

Committer:
psahay
Date:
Tue Mar 03 19:52:25 2015 +0000
Revision:
13:1b26be6d53ad
Parent:
12:67b9ed2c6e4f 
stop added

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 0:0d68fe822228 1 #include "mbed.h"
samux 0:0d68fe822228 2 #include "USBHostMSD.h"
4180_1 9:f1aebfbe7e78 3 #include "wave_player.h"
psahay 11:84161ded6baf 4 #include "rtos.h"
psahay 11:84161ded6baf 5
4180_1 9:f1aebfbe7e78 6 //mbed Application board waveplayer demo
4180_1 9:f1aebfbe7e78 7 //Plays the wave file "sample.wav" on the USB flash drive
4180_1 9:f1aebfbe7e78 8 //Outputs to onboard speaker (but at very low volume)
4180_1 9:f1aebfbe7e78 9 //and the Audio Out jack for connection to a set of amplified PC speakers (at higher volume)
4180_1 9:f1aebfbe7e78 10 //Needs a USB flash drive inserted with the wav file on it to run
samux 0:0d68fe822228 11
4180_1 9:f1aebfbe7e78 12 //Analog Out Jack
4180_1 9:f1aebfbe7e78 13 AnalogOut DACout(p18);
4180_1 9:f1aebfbe7e78 14 //On Board Speaker
4180_1 9:f1aebfbe7e78 15 PwmOut PWMout(p26);
4180_1 9:f1aebfbe7e78 16
4180_1 9:f1aebfbe7e78 17 wave_player waver(&DACout,&PWMout);
4180_1 9:f1aebfbe7e78 18
psahay 11:84161ded6baf 19 void playwav(void const *args)
psahay 11:84161ded6baf 20 {
psahay 12:67b9ed2c6e4f 21 FILE *wave_file;
psahay 11:84161ded6baf 22 wave_file=fopen((const char *)args,"r");
psahay 11:84161ded6baf 23 waver.play(wave_file);
psahay 11:84161ded6baf 24 fclose(wave_file);
psahay 11:84161ded6baf 25 }
psahay 11:84161ded6baf 26
4180_1 9:f1aebfbe7e78 27 int main()
4180_1 9:f1aebfbe7e78 28 {
samux 0:0d68fe822228 29 USBHostMSD msd("usb");
4180_1 9:f1aebfbe7e78 30 //setup PWM hardware for a Class D style audio output
4180_1 9:f1aebfbe7e78 31 PWMout.period(1.0/400000.0);
4180_1 9:f1aebfbe7e78 32 printf("\n\n\nHello, wave world!\n");
4180_1 9:f1aebfbe7e78 33 // wait until connected to a USB device
4180_1 9:f1aebfbe7e78 34 while(!msd.connect()) {
samux 0:0d68fe822228 35 Thread::wait(500);
samux 0:0d68fe822228 36 }
4180_1 9:f1aebfbe7e78 37 //open wav file and play it
psahay 12:67b9ed2c6e4f 38 waver.stop = false;
psahay 11:84161ded6baf 39 Thread thread(playwav,(void *)"/usb/wav3.wav");
4180_1 9:f1aebfbe7e78 40 //end of program
psahay 11:84161ded6baf 41 Thread::wait(10);
psahay 11:84161ded6baf 42 waver.stop = true;
4180_1 9:f1aebfbe7e78 43 while(1) {};
samux 0:0d68fe822228 44 }