hal_i2s_format.h
的数据结构
typedef enum
{
I2S_MODE_MASTER,
I2S_MODE_SLAVE,
} i2s_mode_t;
typedef enum
{
I2S_PROTOCOL_I2S,
I2S_PROTOCOL_LEFT_J,
I2S_PROTOCOL_RIGHT_J,
I2S_PCM_SHORT,
I2S_PCM_LONG,
} i2s_protocol_t;
typedef enum
{
I2S_LEFT_POLARITY_LOW,
I2S_LEFT_POLARITY_HIGH,
} i2s_polarity_t;
typedef enum
{
I2S_SAMPLE_RATE_8000 = 8000U,
I2S_SAMPLE_RATE_11025 = 11025U,
I2S_SAMPLE_RATE_12000 = 12000U,
I2S_SAMPLE_RATE_16000 = 16000U,
I2S_SAMPLE_RATE_22050 = 22050U,
I2S_SAMPLE_RATE_24000 = 24000U,
I2S_SAMPLE_RATE_32000 = 32000U,
I2S_SAMPLE_RATE_44100 = 44100U,
I2S_SAMPLE_RATE_48000 = 48000U,
I2S_SAMPLE_RATE_96000 = 96000U,
I2S_SAMPLE_RATE_192000 = 192000U,
I2S_SAMPLE_RATE_256000 = 256000U,
} i2s_sample_rate_t;
typedef enum
{
I2S_SAMPLE_WIDTH_8BIT = 8U,
I2S_SAMPLE_WIDTH_12BIT = 12U,
I2S_SAMPLE_WIDTH_16BIT = 16U,
I2S_SAMPLE_WIDTH_20BIT = 20U,
I2S_SAMPLE_WIDTH_24BIT = 24U,
I2S_SAMPLE_WIDTH_28BIT = 28U,
I2S_SAMPLE_WIDTH_32BIT = 32U,
} i2s_sample_width_t;
typedef enum
{
I2S_LEFT_CHANNEL,
I2S_RIGHT_CHANNEL,
I2S_LEFT_RIGHT_CHANNEL,
} i2s_sound_channel_t;
typedef enum
{
I2S_STREAM_PLAYBACK = 0,
I2S_STREAM_RECORD = 1,
} i2s_stream_t;
typedef struct
{
i2s_mode_t mode;
i2s_protocol_t protocol;
i2s_polarity_t polarity;
i2s_sample_rate_t rate;
i2s_sample_width_t width;
i2s_sound_channel_t channel;
uint32_t sclk_nfs;
uint32_t mclk_nfs;
i2s_stream_t stream;
} i2s_format_t;