Samuel Mokrani / Mbed 2 deprecated USBAudio_HelloWorld

USBAudio Hello World

Dependencies:   mbed USBDevice

main.cpp

Committer:
samux
Date:
2013-03-01
Revision:
4:d7e8697d8bd3
Parent:
3:c16e446c439a

File content as of revision 4:d7e8697d8bd3:

// Hello World example for the USBAudio library
 
#include "mbed.h"
#include "USBAudio.h"
 
Serial pc(USBTX, USBRX);
 
// frequency: 48 kHz
#define FREQ 48000
 
// 1 channel: mono
#define NB_CHA 1
 
// length of an audio packet: each ms, we receive 48 * 16bits ->48 * 2 bytes. as there is one channel, the length will be 48 * 2 * 1
#define AUDIO_LENGTH_PACKET 48 * 2 * 1
 
// USBAudio
USBAudio audio(FREQ, NB_CHA);
 
int main() {
    int16_t buf[AUDIO_LENGTH_PACKET/2];
    
    while (1) {
        // read an audio packet
        audio.read((uint8_t *)buf);
 
        // print packet received
        pc.printf("recv: ");
        for(int i = 0; i < AUDIO_LENGTH_PACKET/2; i++) {
            pc.printf("%d ", buf[i]);
        }
        pc.printf("\r\n");
    }
}