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WIP Adaptive with PLL nudge (demo working)

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This commit is contained in:
Ed Clarke
2018-11-05 13:46:01 +00:00
parent 3214d4ea9f
commit c662acaa3b
6 changed files with 144 additions and 26 deletions
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12
examples/xua_lite_example/src/audio_hub.xc
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@@ -5,6 +5,7 @@
#define DEBUG_PRINT_ENABLE_XUA_AUDIO_HUB 1
#include "debug_print.h"
#include "mic_array.h"
#include "AudioConfig.h"
void mic_array_decimator_set_samprate(const unsigned samplerate, int mic_decimator_fir_data_array[], mic_array_decimator_conf_common_t *dcc, mic_array_decimator_config_t dc[]);
@@ -31,6 +32,8 @@ void AudioHub(server i2s_frame_callback_if i2s,
int32_t samples_out[NUM_USB_CHAN_OUT] = {0};
int32_t samples_in[NUM_USB_CHAN_IN] = {0};
int32_t clock_nudge = 0;
#if XUA_NUM_PDM_MICS > 0
unsigned buffer;
int raw_mics[XUA_NUM_PDM_MICS] = {0};
@@ -66,8 +69,9 @@ void AudioHub(server i2s_frame_callback_if i2s,
case i2s.restart_check() -> i2s_restart_t restart:
restart = I2S_NO_RESTART; // Keep on looping
timer tmr; int t0, t1; tmr :> t0;
for (int i = 0; i < NUM_USB_CHAN_OUT; i++) c_audio :> samples_out[i];
for (int i = 0; i < NUM_USB_CHAN_IN; i++) c_audio <: raw_mics[i];
for (int i = 0; i < NUM_USB_CHAN_OUT; i++) c_audio :> samples_out[i];
if (XUA_ADAPTIVE) c_audio :> clock_nudge;
for (int i = 0; i < NUM_USB_CHAN_IN; i++) c_audio <: raw_mics[i];
//Grab mics
current = mic_array_get_next_time_domain_frame(c_ds_output, decimatorCount, buffer, mic_audio_frame, dc);
@@ -75,8 +79,10 @@ void AudioHub(server i2s_frame_callback_if i2s,
raw_mics[0] = current->data[0][0];
raw_mics[1] = current->data[1][0];
}
pll_nudge(clock_nudge);
//tmr :> t1; debug_printf("%d\n", t1 - t0);
delay_microseconds(15); //Test backpressure tolerance
//delay_microseconds(10); //Test backpressure tolerance
break;
}
}