example with analog microphone crashes on STM32F412G-Discovery

[PCu1]

Hello, 

I'm trying to do a quick test with the STM32F412G-Discovery kit and the analogue microphone input.
I use this example https://github.com/STMicroelectronics/STM32CubeF4/tree/master/Projects/STM32F412G-Discovery/Examples/BSP

with the menu #### AUDIO REC ANALOG ####.

The problem is that the firmware crashes at the line BSP_AUDIO_IN_Record(internal_buffer, AUDIO_BLOCK_SIZE);

void AudioRecAnalog_demo (void)
{
  AudioRec_SetHint();

  /* Initialize Audio Recorder */
  if (BSP_AUDIO_IN_InitEx(INPUT_DEVICE_ANALOG_MIC, DEFAULT_AUDIO_IN_FREQ, DEFAULT_AUDIO_IN_BIT_RESOLUTION, DEFAULT_AUDIO_IN_CHANNEL_NBR) == AUDIO_OK)
  {
    BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
    BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
    BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 95, (uint8_t *)"  AUDIO RECORD INIT OK  ", CENTER_MODE);
  }
  else
  {
    BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
    BSP_LCD_SetTextColor(LCD_COLOR_RED);
    BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 95, (uint8_t *)"  AUDIO RECORD INIT FAIL", CENTER_MODE);
    BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 80, (uint8_t *)" Try to reset board ", CENTER_MODE);
  }

  audio_rec_buffer_state = BUFFER_OFFSET_NONE;

  /* Display the state on the screen */
  BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
  BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
  BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 80, (uint8_t *)"       RECORDING...     ", CENTER_MODE);


  /* Start Recording */ crash here
  BSP_AUDIO_IN_Record(internal_buffer, AUDIO_BLOCK_SIZE);

  /* Wait end of one block recording */
  while((audio_rec_buffer_state & BUFFER_OFFSET_FULL) != BUFFER_OFFSET_FULL);

  /* Stop recorder */
  BSP_AUDIO_IN_Stop();

Does anyone have an idea?

[SofLit]

Hello,

Internal ticket 195718 for follow up and confirmation of the issue / fix if there is one ..

[SofLit]

FYI,

Behavior reproduced internally. Analysis is ongoing.