rpi4-osdev/part11-breakout-smp/breakout_snd.c

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#include "include/multicore.h"
#include "include/audio.h"
void snd_core(void)
{
clear_core2();
// Initialise the audio
audio_init();
// Write data out to FIFO and loop infinitely
extern unsigned char _binary_bin_audio_bin_start[];
extern unsigned char _binary_bin_audio_bin_size[];
unsigned int size = (long)&_binary_bin_audio_bin_size;
unsigned char *data = &(_binary_bin_audio_bin_start[0]);
while (1) audio_play_cpu(data, size);
}