Posted on January 16, 2017 at 10:17Hello,
I have added an audio task to the stm32f746g discovery project netconn udp echo server (Freertos + lwip ).
The audio task is very simple.I capture the audio data from the microphone and i play it back.
The audio code works in stand alone mode (without using freertos) but when i use freertos the audio task and the ethernet tasks freeze .The audio is correctly processed ( audio in from microphone is played out without problem ) but the LED1 stop to toggle ( LED1 toggle in audio task ) and all ethernet tasks don't work anymore.
Here is my code of the audio task :
static void my_audio_thread(void *arg)
{
audioBuffer = (uint16_t *)malloc(MIC_SAMPLES * 2);
/* Init OnboardMIC */
BSP_AUDIO_IN_OUT_Init(INPUT_DEVICE_DIGITAL_MICROPHONE_2, OUTPUT_DEVICE_HEADPHONE, 100, DEFAULT_AUDIO_IN_FREQ);
BSP_AUDIO_IN_Record(audioBuffer, MIC_SAMPLES*2);
/* Update the Audio frame slot configuration to match the PCM standard instead of TDM */
BSP_AUDIO_OUT_SetAudioFrameSlot(CODEC_AUDIOFRAME_SLOT_02);
/* ATT: size to play in bytes ! */
BSP_AUDIO_OUT_Play(audioBuffer, MIC_SAMPLES*2 * sizeof(uint16_t));
for(;;)
{
BSP_LED_Toggle(LED1);
vTaskDelay( 500 );
}
}
if i remove the line BSP_AUDIO_OUT_Play(audioBuffer, MIC_SAMPLES*2 * sizeof(uint16_t));
the others tasks are not stopped and LED1 toggle.
If someone could help me to find out the way to resolve this issue it would be great!!!
Thank you.
Félix.
