Private Macros

Defines
#define	SAIClockDivider(__FREQUENCY__)
#define	DFSDMOverSampling(__FREQUENCY__)
#define	DFSDMClockDivider(__FREQUENCY__)
#define	DFSDMFilterOrder(__FREQUENCY__)
#define	DFSDMRightBitShift(__FREQUENCY__)
#define	SaturaLH(N, L, H)   (((N)<(L))?(L):(((N)>(H))?(H):(N)))

---

Define Documentation

#define DFSDMClockDivider

(

__FREQUENCY__

)

Value:

(__FREQUENCY__ == AUDIO_FREQUENCY_8K)  ? 24 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_11K) ? 4 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_16K) ? 24 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_22K) ? 4 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_32K) ? 24 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_44K) ? 4  \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_48K) ? 32 : 32  \

Definition at line 210 of file stm32l4r9i_discovery_audio.c.

Referenced by AUDIO_DFSDMx_Init().

#define DFSDMFilterOrder

(

__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_SINC5_ORDER  \

Definition at line 219 of file stm32l4r9i_discovery_audio.c.

Referenced by AUDIO_DFSDMx_Init().

#define DFSDMOverSampling

(

__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 : 16  \

Definition at line 201 of file stm32l4r9i_discovery_audio.c.

Referenced by AUDIO_DFSDMx_Init().

#define DFSDMRightBitShift

(

__FREQUENCY__

)

Value:

(__FREQUENCY__ == AUDIO_FREQUENCY_8K)  ? 7 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_11K) ? 7 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_16K) ? 4 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_22K) ? 4 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_32K) ? 7 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_44K) ? 7  \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_48K) ? 3 : 4  \

Definition at line 228 of file stm32l4r9i_discovery_audio.c.

Referenced by AUDIO_DFSDMx_Init().

#define SAIClockDivider

(

__FREQUENCY__

)

Value:

(__FREQUENCY__ == AUDIO_FREQUENCY_8K)  ? 24 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_11K) ? 4 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_16K) ? 12 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_22K) ? 2 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_32K) ? 6 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_44K) ? 1 \
      : (__FREQUENCY__ == AUDIO_FREQUENCY_48K) ? 4 : 2  \

Definition at line 191 of file stm32l4r9i_discovery_audio.c.

Referenced by AUDIO_SAIx_Init(), BSP_AUDIO_IN_SetFrequency(), and BSP_AUDIO_OUT_SetFrequency().

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

Definition at line 238 of file stm32l4r9i_discovery_audio.c.

Referenced by HAL_DFSDM_FilterRegConvCpltCallback(), and HAL_DFSDM_FilterRegConvHalfCpltCallback().