Samuel Mokrani / Mbed 2 deprecated USBAudio_HelloWorld

USBAudio Hello World

Dependencies:   mbed USBDevice

main.cpp

Committer:
samux
Date:
2011-11-30
Revision:
0:3a00949fdb07
Child:
1:d712dff4f9ca

File content as of revision 0:3a00949fdb07:

// 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 LENGTH_PACKET 48 * 2 * 1

// USBAudio
USBAudio audio(FREQ, NB_CHA);

int main() {
    uint8_t buf[LENGTH_PACKET];
    
    while (1) {
        // read an audio packet
        audio.read(buf);

        // print packet received
        pc.printf("recv: ");
        for(int i = 0; i < LENGTH_PACKET; i++) {
            pc.printf("%d ", buf[i]);
        }
        pc.printf("\r\n");
    }
}