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怎么通过i2s_read_bytes()函数读取mic数据啊？需要配置什么参数吗？
I2S配置如下：
i2s_config_t i2s_config = {

.mode = I2S_MODE_MASTER | I2S_MODE_RX | I2S_MODE_TX,
.sample_rate = 48000,
.bits_per_sample = SUPPOERTED_BITS,
.channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT,
.communication_format = I2S_COMM_FORMAT_I2S,

.dma_buf_count = 3, /*!< amount of the dam buffer sectors*/
.dma_buf_len = 300, /*!< dam buffer size of each sector (word, i.e. 4 Bytes) */
.intr_alloc_flags = I2S_INTER_FLAG,
.use_apll = 1,
};

Can you use english?

Thank you for your advice。

How to use function i2s_read_bytes() to read mic data?
The I2S configuration is as follows. but, I cann't get the mic data.

i2s_config_t i2s_config = {

.mode = I2S_MODE_MASTER | I2S_MODE_RX | I2S_MODE_TX,
.sample_rate = 48000,
.bits_per_sample = SUPPOERTED_BITS,
.channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT,
.communication_format = I2S_COMM_FORMAT_I2S,

.dma_buf_count = 3, /*!< amount of the dam buffer sectors*/
.dma_buf_len = 300, /*!< dam buffer size of each sector (word, i.e. 4 Bytes) */
.intr_alloc_flags = I2S_INTER_FLAG,
.use_apll = 1,
};

Looks good, at first glance at least. Could you elaborate on 'cannot get the mic data'? What data do you get?

I'm not sure. It's like noise, not the mic data

Any chance you can play a sample (100Hz sine wave or so) into the microphone and dump some of the data you get back? Perhaps it's as simple as a timing issue or something.