void dsp_process_init(int cpu_hz, int hsb_hz, int pba_hz, int pbb_hz)
{
// Initialize TPA6130
tpa6130_init();
// Initialize DAC that send audio to TPA6130
tpa6130_dac_start(DAC_SAMPLING_RATE, DAC_NUM_CHANNELS,
DAC_BITS_PER_SAMPLE, DAC_SWAP_CHANNELS,
audio_callback, AUDIO_DAC_RELOAD_CB,
FOSC0);
tpa6130_set_volume(0x20);
tpa6130_get_volume();
signal_source_init(&signal1_generator, 433, 20000);
signal_source_init(&signal2_generator, 2000, 10000);
current_stereo_out_buf = stereo_out_buf1;
signal_in_buf = signal_pre_filter_buf + FIR_NUM_COEF;
filter_restore_default();
/* Fill the initial buffer for the hamming window with ones. This buffer
* will then be multiplied by the hamming window.
*/
dsp16_gen_step(fft_window, BUFFER_LENGTH, DSP16_Q(1.), DSP16_Q(1.), 0);
dsp16_win_hamm(fft_window, fft_window, BUFFER_LENGTH);
/* Run the interrupt handler manually once to start the ABDAC */
dac_reload_callback();
}
void audio_callback(U32 arg)
{
if( arg == AUDIO_DAC_OUT_OF_SAMPLE_CB )
{
dac_overrun_callback();
}
else if( arg == AUDIO_DAC_RELOAD_CB )
{
dac_reload_callback();
}
else if( arg == AUDIO_ADC_OUT_OF_SAMPLE_CB )
{
}
else if( arg == AUDIO_ADC_RELOAD_CB )
{
}
}
void master_callback(uint32_t arg)
{
if( arg == AUDIO_DAC_OUT_OF_SAMPLE_CB )
{
dac_overrun_callback();
}
else if( arg == AUDIO_DAC_RELOAD_CB )
{
dac_reload_callback();
}
else if( arg == AUDIO_ADC_OUT_OF_SAMPLE_CB )
{
adc_underrun_callback();;
}
else if( arg == AUDIO_ADC_RELOAD_CB )
{
adc_reload_callback();;
}
}