diff options
Diffstat (limited to 'examples/device/uac2_speaker_fb/src/main.c')
| -rw-r--r-- | examples/device/uac2_speaker_fb/src/main.c | 58 |
1 files changed, 30 insertions, 28 deletions
diff --git a/examples/device/uac2_speaker_fb/src/main.c b/examples/device/uac2_speaker_fb/src/main.c index e09015382..c57203a8c 100644 --- a/examples/device/uac2_speaker_fb/src/main.c +++ b/examples/device/uac2_speaker_fb/src/main.c @@ -95,6 +95,7 @@ int main(void) { #if CFG_TUSB_OS == OPT_OS_FREERTOS freertos_init(); + return 0; #else // init device stack on configured roothub port tusb_rhport_init_t dev_init = { @@ -115,8 +116,6 @@ int main(void) { audio_task(NULL); } #endif - - return 0; } //--------------------------------------------------------------------+ @@ -602,32 +601,32 @@ void audio_task(void *param) { (void) param; static uint32_t start_ms = 0; +#if CFG_TUSB_OS == OPT_OS_FREERTOS while (1) { - uint32_t curr_ms = tusb_time_millis_api(); - if (start_ms != curr_ms) { - start_ms = curr_ms; - - uint16_t length = (uint16_t) (current_sample_rate / 1000 * CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_RX * CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX); +#endif + uint32_t curr_ms = tusb_time_millis_api(); + if (start_ms != curr_ms) { + start_ms = curr_ms; - if (current_sample_rate == 44100 && (curr_ms % 10 == 0)) { - // Take one more sample every 10 cycles, to have a average reading speed of 44.1 - // This correction is not needed in real world cases - length += CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_RX * CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX; - } else if (current_sample_rate == 88200 && (curr_ms % 5 == 0)) { - // Take one more sample every 5 cycles, to have a average reading speed of 88.2 - // This correction is not needed in real world cases - length += CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_RX * CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX; - } + uint16_t length = (uint16_t) (current_sample_rate / 1000 * CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_RX * CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX); - tud_audio_read(i2s_dummy_buffer, length); + if (current_sample_rate == 44100 && (curr_ms % 10 == 0)) { + // Take one more sample every 10 cycles, to have a average reading speed of 44.1 + // This correction is not needed in real world cases + length += CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_RX * CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX; + } else if (current_sample_rate == 88200 && (curr_ms % 5 == 0)) { + // Take one more sample every 5 cycles, to have a average reading speed of 88.2 + // This correction is not needed in real world cases + length += CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_RX * CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX; } + tud_audio_read(i2s_dummy_buffer, length); + } + #if CFG_TUSB_OS == OPT_OS_FREERTOS - vTaskDelay(1); -#else - return; -#endif + vTaskDelay(1); } +#endif } //--------------------------------------------------------------------+ @@ -637,19 +636,22 @@ void led_blinking_task(void *param) { (void) param; static bool led_state = false; - while (1) { #if CFG_TUSB_OS == OPT_OS_FREERTOS + while (1) { vTaskDelay(blink_interval_ms / portTICK_PERIOD_MS); #else - static uint32_t start_ms = 0; - // Blink every interval ms - if (tusb_time_millis_api() - start_ms < blink_interval_ms) return; - start_ms += blink_interval_ms; + static uint32_t start_ms = 0; + // Blink every interval ms + if (tusb_time_millis_api() - start_ms < blink_interval_ms) return; + start_ms += blink_interval_ms; #endif - board_led_write(led_state); - led_state = 1 - led_state; + board_led_write(led_state); + led_state = 1 - led_state; + +#if CFG_TUSB_OS == OPT_OS_FREERTOS } +#endif } #if CFG_AUDIO_DEBUG |