ESE519 / Mbed 2 deprecated AppBoard_Waveplayer

Lab4

Dependencies:   USBHost mbed wave_player_appbd

Fork of AppBoard_Waveplayer by jim hamblen

main.cpp@10:c8246ac91533, 2015-03-03 (annotated)

Committer:
jaredwil
Date:
Tue Mar 03 19:21:54 2015 +0000
Revision:
10:c8246ac91533
Parent:
9:f1aebfbe7e78
Child:
11:84161ded6baf
Part4;

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"
4180_1 9:f1aebfbe7e78 4 //mbed Application board waveplayer demo
4180_1 9:f1aebfbe7e78 5 //Plays the wave file "sample.wav" on the USB flash drive
4180_1 9:f1aebfbe7e78 6 //Outputs to onboard speaker (but at very low volume)
4180_1 9:f1aebfbe7e78 7 //and the Audio Out jack for connection to a set of amplified PC speakers (at higher volume)
4180_1 9:f1aebfbe7e78 8 //Needs a USB flash drive inserted with the wav file on it to run
samux 0:0d68fe822228 9
4180_1 9:f1aebfbe7e78 10 //Analog Out Jack
4180_1 9:f1aebfbe7e78 11 AnalogOut DACout(p18);
4180_1 9:f1aebfbe7e78 12 //On Board Speaker
4180_1 9:f1aebfbe7e78 13 PwmOut PWMout(p26);
4180_1 9:f1aebfbe7e78 14
4180_1 9:f1aebfbe7e78 15 wave_player waver(&DACout,&PWMout);
4180_1 9:f1aebfbe7e78 16
4180_1 9:f1aebfbe7e78 17 int main()
4180_1 9:f1aebfbe7e78 18 {
samux 0:0d68fe822228 19 USBHostMSD msd("usb");
4180_1 9:f1aebfbe7e78 20 FILE *wave_file;
4180_1 9:f1aebfbe7e78 21 //setup PWM hardware for a Class D style audio output
4180_1 9:f1aebfbe7e78 22 PWMout.period(1.0/400000.0);
4180_1 9:f1aebfbe7e78 23 printf("\n\n\nHello, wave world!\n");
4180_1 9:f1aebfbe7e78 24 // wait until connected to a USB device
4180_1 9:f1aebfbe7e78 25 while(!msd.connect()) {
samux 0:0d68fe822228 26 Thread::wait(500);
samux 0:0d68fe822228 27 }
jaredwil 10:c8246ac91533 28
jaredwil 10:c8246ac91533 29
4180_1 9:f1aebfbe7e78 30 //open wav file and play it
jaredwil 10:c8246ac91533 31 wave_file=fopen("/usb/wav3.wav","r");
4180_1 9:f1aebfbe7e78 32 waver.play(wave_file);
4180_1 9:f1aebfbe7e78 33 fclose(wave_file);
4180_1 9:f1aebfbe7e78 34 //end of program
4180_1 9:f1aebfbe7e78 35 while(1) {};
samux 0:0d68fe822228 36 }