STM32412G Discovery Audio Private macros

Defines
#define	DFSDM_OVER_SAMPLING(__FREQUENCY__)
#define	DFSDM_CLOCK_DIVIDER(__FREQUENCY__)
#define	DFSDM_FILTER_ORDER(__FREQUENCY__)
#define	DFSDM_MIC_BIT_SHIFT(__FREQUENCY__)
#define	SaturaLH(N, L, H)   (((N)<(L))?(L):(((N)>(H))?(H):(N)))

---

Define Documentation

#define DFSDM_CLOCK_DIVIDER

(

__FREQUENCY__

)

Value:

(__FREQUENCY__ == AUDIO_FREQUENCY_8K)  ? 24 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_11K) ? 48 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_16K) ? 24 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_22K) ? 48 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_32K) ? 24 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_44K) ? 48  \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_48K) ? 32 : 72  \

Definition at line 140 of file stm32412g_discovery_audio.c.

Referenced by BSP_AUDIO_IN_ConfigMicDefault().

#define DFSDM_FILTER_ORDER

(

__FREQUENCY__

)

Value:

(__FREQUENCY__ == AUDIO_FREQUENCY_8K)  ? DFSDM_FILTER_SINC3_ORDER \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_11K) ? DFSDM_FILTER_SINC3_ORDER \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_16K) ? DFSDM_FILTER_SINC3_ORDER \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_22K) ? DFSDM_FILTER_SINC3_ORDER \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_32K) ? DFSDM_FILTER_SINC4_ORDER \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_44K) ? DFSDM_FILTER_SINC4_ORDER  \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_48K) ? DFSDM_FILTER_SINC4_ORDER : DFSDM_FILTER_SINC4_ORDER  \

Definition at line 149 of file stm32412g_discovery_audio.c.

Referenced by BSP_AUDIO_IN_ConfigMicDefault().

#define DFSDM_MIC_BIT_SHIFT

(

__FREQUENCY__

)

Value:

(__FREQUENCY__ == AUDIO_FREQUENCY_8K)  ? 5 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_11K) ? 4 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_16K) ? 2 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_22K) ? 2 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_32K) ? 5 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_44K) ? 6  \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_48K) ? 2 : 0  \

Definition at line 158 of file stm32412g_discovery_audio.c.

Referenced by BSP_AUDIO_IN_ConfigMicDefault().

#define DFSDM_OVER_SAMPLING

(

__FREQUENCY__

)

Value:

(__FREQUENCY__ == AUDIO_FREQUENCY_8K)  ? 256 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_11K) ? 256 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_16K) ? 128 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_22K) ? 128 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_32K) ? 64 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_44K) ? 64  \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_48K) ? 32 : 25  \

Definition at line 131 of file stm32412g_discovery_audio.c.

Referenced by BSP_AUDIO_IN_ConfigMicDefault().

#define SaturaLH	(		N,
			L,
			H
	)		(((N)<(L))?(L):(((N)>(H))?(H):(N)))

Definition at line 168 of file stm32412g_discovery_audio.c.

Referenced by HAL_DFSDM_FilterRegConvCpltCallback(), and HAL_DFSDM_FilterRegConvHalfCpltCallback().