Defines
#define	AUDIO_OUT_I2Sx SPI3
#define	AUDIO_OUT_I2Sx_CLK_ENABLE() __HAL_RCC_SPI3_CLK_ENABLE()
#define	AUDIO_OUT_I2Sx_CLK_DISABLE() __HAL_RCC_SPI3_CLK_DISABLE()
#define	AUDIO_OUT_I2Sx_MCK_PIN GPIO_PIN_7
#define	AUDIO_OUT_I2Sx_MCK_GPIO_PORT GPIOC
#define	AUDIO_OUT_I2Sx_MCK_GPIO_CLK_ENABLE() __HAL_RCC_GPIOC_CLK_ENABLE()
#define	AUDIO_OUT_I2Sx_MCK_GPIO_CLK_DISABLE() __HAL_RCC_GPIOC_CLK_DISABLE()
#define	AUDIO_OUT_I2Sx_MCK_AF GPIO_AF6_SPI3
#define	AUDIO_OUT_I2Sx_SCK_PIN GPIO_PIN_12
#define	AUDIO_OUT_I2Sx_SCK_GPIO_PORT GPIOB
#define	AUDIO_OUT_I2Sx_SCK_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
#define	AUDIO_OUT_I2Sx_SCK_GPIO_CLK_DISABLE() __HAL_RCC_GPIOB_CLK_DISABLE()
#define	AUDIO_OUT_I2Sx_SCK_AF GPIO_AF7_SPI3
#define	AUDIO_OUT_I2Sx_WS_PIN GPIO_PIN_4
#define	AUDIO_OUT_I2Sx_WS_GPIO_PORT GPIOA
#define	AUDIO_OUT_I2Sx_WS_GPIO_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE()
#define	AUDIO_OUT_I2Sx_WS_GPIO_CLK_DISABLE() __HAL_RCC_GPIOA_CLK_DISABLE()
#define	AUDIO_OUT_I2Sx_WS_AF GPIO_AF6_SPI3
#define	AUDIO_OUT_I2Sx_SD_PIN GPIO_PIN_5
#define	AUDIO_OUT_I2Sx_SD_GPIO_PORT GPIOB
#define	AUDIO_OUT_I2Sx_SD_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
#define	AUDIO_OUT_I2Sx_SD_GPIO_CLK_DISABLE() __HAL_RCC_GPIOB_CLK_DISABLE()
#define	AUDIO_OUT_I2Sx_SD_AF GPIO_AF6_SPI3
#define	AUDIO_OUT_I2Sx_DMAx_CLK_ENABLE() __HAL_RCC_DMA1_CLK_ENABLE()
#define	AUDIO_OUT_I2Sx_DMAx_CLK_DISABLE() __HAL_RCC_DMA1_CLK_DISABLE()
#define	AUDIO_OUT_I2Sx_DMAx_STREAM DMA1_Stream5
#define	AUDIO_OUT_I2Sx_DMAx_CHANNEL DMA_CHANNEL_0
#define	AUDIO_OUT_I2Sx_DMAx_IRQ DMA1_Stream5_IRQn
#define	AUDIO_OUT_I2Sx_DMAx_PERIPH_DATA_SIZE DMA_PDATAALIGN_HALFWORD
#define	AUDIO_OUT_I2Sx_DMAx_MEM_DATA_SIZE DMA_MDATAALIGN_HALFWORD
#define	DMA_MAX_SIZE 0xFFFF
#define	AUDIO_OUT_I2Sx_DMAx_IRQHandler DMA1_Stream5_IRQHandler
#define	AUDIO_OUT_IRQ_PREPRIO ((uint32_t)0x0E) /* Select the preemption priority level(0 is the highest) */
#define	AUDIO_DFSDMx_MIC1_CHANNEL DFSDM1_Channel0 /* MP34DT01TR microphone on PCB top side */
#define	AUDIO_DFSDMx_MIC2_CHANNEL DFSDM1_Channel3 /* MP34DT01TR microphone on PCB top side */
#define	AUDIO_DFSDMx_MIC1_CHANNEL_FOR_FILTER DFSDM_CHANNEL_0
#define	AUDIO_DFSDMx_MIC2_CHANNEL_FOR_FILTER DFSDM_CHANNEL_3
#define	AUDIO_DFSDMx_MIC1_FILTER DFSDM1_Filter0 /* Common filter for MP34DT01TR microphone input */
#define	AUDIO_DFSDMx_MIC2_FILTER DFSDM1_Filter1 /* Common filter for MP34DT01TR microphone input */
#define	AUDIO_DFSDMx_CLK_ENABLE() __HAL_RCC_DFSDM1_CLK_ENABLE()
#define	AUDIO_DFSDMx_CKOUT_PIN GPIO_PIN_2
#define	AUDIO_DFSDMx_CKOUT_DMIC_GPIO_PORT GPIOC
#define	AUDIO_DFSDMx_CKOUT_DMIC_GPIO_CLK_ENABLE() __HAL_RCC_GPIOC_CLK_ENABLE()
#define	AUDIO_DFSDMx_CKOUT_DMIC_AF GPIO_AF8_DFSDM1
#define	AUDIO_DFSDMx_DMIC_PIN GPIO_PIN_1
#define	AUDIO_DFSDMx_DMIC_GPIO_PORT GPIOB
#define	AUDIO_DFSDMx_DMIC_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
#define	AUDIO_DFSDMx_DMIC_AF GPIO_AF8_DFSDM1
#define	AUDIO_DFSDMx_DMAx_CLK_ENABLE() __HAL_RCC_DMA2_CLK_ENABLE()
#define	AUDIO_DFSDMx_DMAx_MIC1_STREAM DMA2_Stream6
#define	AUDIO_DFSDMx_DMAx_MIC1_CHANNEL DMA_CHANNEL_3
#define	AUDIO_DFSDMx_DMAx_MIC2_STREAM DMA2_Stream4
#define	AUDIO_DFSDMx_DMAx_MIC2_CHANNEL DMA_CHANNEL_3
#define	AUDIO_DFSDMx_DMAx_MIC1_IRQ DMA2_Stream6_IRQn
#define	AUDIO_DFSDMx_DMAx_MIC2_IRQ DMA2_Stream4_IRQn
#define	AUDIO_DFSDMx_DMAx_PERIPH_DATA_SIZE DMA_PDATAALIGN_WORD
#define	AUDIO_DFSDMx_DMAx_MEM_DATA_SIZE DMA_MDATAALIGN_WORD
#define	AUDIO_DFSDM_DMAx_MIC1_IRQHandler DMA2_Stream6_IRQHandler
#define	AUDIO_DFSDM_DMAx_MIC2_IRQHandler DMA2_Stream4_IRQHandler
#define	AUDIO_IN_IRQ_PREPRIO 0x0F /* Select the preemption priority level(0 is the highest) */
#define	AUDIO_IN_I2Sx SPI3
#define	AUDIO_IN_I2Sx_CLK_ENABLE() __HAL_RCC_SPI3_CLK_ENABLE()
#define	AUDIO_IN_I2Sx_CLK_DISABLE() __HAL_RCC_SPI3_CLK_DISABLE()
#define	AUDIO_IN_I2Sx_EXT_SD_PIN GPIO_PIN_4
#define	AUDIO_IN_I2Sx_EXT_SD_GPIO_PORT GPIOB
#define	AUDIO_IN_I2Sx_EXT_SD_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
#define	AUDIO_IN_I2Sx_EXT_SD_GPIO_CLK_DISABLE() __HAL_RCC_GPIOB_CLK_DISABLE()
#define	AUDIO_IN_I2Sx_EXT_SD_AF GPIO_AF7_SPI3
#define	AUDIO_IN_I2Sx_DMAx_CLK_ENABLE() __HAL_RCC_DMA1_CLK_ENABLE()
#define	AUDIO_IN_I2Sx_DMAx_CLK_DISABLE() __HAL_RCC_DMA1_CLK_DISABLE()
#define	AUDIO_IN_I2Sx_DMAx_STREAM DMA1_Stream0
#define	AUDIO_IN_I2Sx_DMAx_CHANNEL DMA_CHANNEL_3
#define	AUDIO_IN_I2Sx_DMAx_IRQ DMA1_Stream0_IRQn
#define	AUDIO_IN_I2Sx_DMAx_IRQ DMA1_Stream0_IRQn
#define	AUDIO_IN_I2Sx_DMAx_PERIPH_DATA_SIZE DMA_PDATAALIGN_HALFWORD
#define	AUDIO_IN_I2Sx_DMAx_MEM_DATA_SIZE DMA_MDATAALIGN_HALFWORD
#define	AUDIO_IN_I2Sx_DMAx_IRQHandler DMA1_Stream0_IRQHandler
#define	AUDIO_TIMx_CLK_ENABLE() __HAL_RCC_TIM4_CLK_ENABLE()
#define	AUDIO_TIMx_CLK_DISABLE() __HAL_RCC_TIM4_CLK_DISABLE()
#define	AUDIO_TIMx TIM4
#define	AUDIO_TIMx_IN_CHANNEL TIM_CHANNEL_1
#define	AUDIO_TIMx_OUT_CHANNEL TIM_CHANNEL_2 /* Select channel 2 as output */
#define	AUDIO_TIMx_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
#define	AUDIO_TIMx_GPIO_CLK_DISABLE() __HAL_RCC_GPIOB_CLK_DISABLE()
#define	AUDIO_TIMx_GPIO_PORT GPIOB
#define	AUDIO_TIMx_IN_GPIO_PIN GPIO_PIN_6
#define	AUDIO_TIMx_OUT_GPIO_PIN GPIO_PIN_7
#define	AUDIO_TIMx_AF GPIO_AF2_TIM4
#define	AUDIODATA_SIZE 2 /* 16-bits audio data size */
#define	AUDIO_OK ((uint8_t)0)
#define	AUDIO_ERROR ((uint8_t)1)
#define	AUDIO_TIMEOUT ((uint8_t)2)
#define	DEFAULT_AUDIO_OUT_FREQ I2S_AUDIOFREQ_48K
#define	DEFAULT_AUDIO_OUT_BIT_RESOLUTION ((uint8_t)16)
#define	DEFAULT_AUDIO_OUT_CHANNEL_NBR ((uint8_t)2) /* Mono = 1, Stereo = 2 */
#define	DEFAULT_AUDIO_OUT_VOLUME ((uint16_t)64)
#define	DEFAULT_AUDIO_IN_FREQ I2S_AUDIOFREQ_16K
#define	DEFAULT_AUDIO_IN_BIT_RESOLUTION ((uint8_t)16)
#define	DEFAULT_AUDIO_IN_CHANNEL_NBR ((uint8_t)2) /* Mono = 1, Stereo = 2 */
#define	DEFAULT_AUDIO_IN_VOLUME ((uint16_t)64)
#define	OUTPUT_DEVICE_HEADPHONE1 OUTPUT_DEVICE_HEADPHONE
#define	OUTPUT_DEVICE_HEADPHONE2 OUTPUT_DEVICE_SPEAKER /* Headphone2 is connected to Speaker output of the wm8994 */
#define	INPUT_DEVICE_ANALOG_MIC ((uint32_t)0x00000001)
#define	INPUT_DEVICE_DIGITAL_MIC1 ((uint32_t)0x00000010)
#define	INPUT_DEVICE_DIGITAL_MIC2 ((uint32_t)0x00000020)
#define	INPUT_DEVICE_DIGITAL_MIC ((uint32_t)(INPUT_DEVICE_DIGITAL_MIC1 \| INPUT_DEVICE_DIGITAL_MIC2))
#define	DFSDM_MIC_NUMBER (2)