Samuel Mokrani / Mbed 2 deprecated USBAudio_HelloWorld

USBAudio Hello World

Dependencies:   mbed USBDevice

main.cpp@3:c16e446c439a, 2012-10-14 (annotated)

Committer:
samux
Date:
Sun Oct 14 13:24:52 2012 +0000
Revision:
3:c16e446c439a
Parent:
1:d712dff4f9ca 
use mbed official USBDevice library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 0:3a00949fdb07 1 // Hello World example for the USBAudio library
samux 3:c16e446c439a 2
samux 0:3a00949fdb07 3 #include "mbed.h"
samux 0:3a00949fdb07 4 #include "USBAudio.h"
samux 3:c16e446c439a 5
samux 0:3a00949fdb07 6 Serial pc(USBTX, USBRX);
samux 3:c16e446c439a 7
samux 0:3a00949fdb07 8 // frequency: 48 kHz
samux 0:3a00949fdb07 9 #define FREQ 48000
samux 3:c16e446c439a 10
samux 0:3a00949fdb07 11 // 1 channel: mono
samux 0:3a00949fdb07 12 #define NB_CHA 1
samux 3:c16e446c439a 13
samux 0:3a00949fdb07 14 // 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
samux 1:d712dff4f9ca 15 #define AUDIO_LENGTH_PACKET 48 * 2 * 1
samux 3:c16e446c439a 16
samux 0:3a00949fdb07 17 // USBAudio
samux 0:3a00949fdb07 18 USBAudio audio(FREQ, NB_CHA);
samux 3:c16e446c439a 19
samux 0:3a00949fdb07 20 int main() {
samux 1:d712dff4f9ca 21 int16_t buf[AUDIO_LENGTH_PACKET/2];
samux 0:3a00949fdb07 22
samux 0:3a00949fdb07 23 while (1) {
samux 0:3a00949fdb07 24 // read an audio packet
samux 1:d712dff4f9ca 25 audio.read((uint8_t *)buf);
samux 3:c16e446c439a 26
samux 0:3a00949fdb07 27 // print packet received
samux 0:3a00949fdb07 28 pc.printf("recv: ");
samux 1:d712dff4f9ca 29 for(int i = 0; i < AUDIO_LENGTH_PACKET/2; i++) {
samux 0:3a00949fdb07 30 pc.printf("%d ", buf[i]);
samux 0:3a00949fdb07 31 }
samux 0:3a00949fdb07 32 pc.printf("\r\n");
samux 0:3a00949fdb07 33 }
samux 3:c16e446c439a 34 }