level 1
请问楼主现在问题解决了么，谢谢
2018年01月15日 14点01分
level 1
*/
typedef struct {
i2s_mode_t mode; /*!< I2S work mode*/
int sample_rate; /*!< I2S sample rate*/
i2s_bits_per_sample_t bits_per_sample; /*!< I2S bits per sample*/
i2s_channel_fmt_t channel_format; /*!< I2S channel format */
i2s_comm_format_t communication_format; /*!< I2S communication format */
int intr_alloc_flags; /*!< Flags used to allocate the interrupt. One or multiple (ORred) ESP_INTR_FLAG_* values. See esp_intr_alloc.h for more info */
int dma_buf_count; /*!< I2S DMA Buffer Count */
int dma_buf_len; /*!< I2S DMA Buffer Length */
bool use_apll; /*!< I2S using APLL as main I2S clock, enable it to get accurate clock */
int fixed_mclk; /*!< I2S using fixed MCLK output. If use_apll = true and fixed_mclk > 0, then the clock output for i2s is fixed and equal to the fixed_mclk value.*/
} i2s_config_t;
最新的sdk中有这样的结构体fixed_mclk，楼主是用这个解决的吗？
2018年03月02日 05点03分
4
typedef struct {
i2s_mode_t mode; /*!< I2S work mode*/
int sample_rate; /*!< I2S sample rate*/
i2s_bits_per_sample_t bits_per_sample; /*!< I2S bits per sample*/
i2s_channel_fmt_t channel_format; /*!< I2S channel format */
i2s_comm_format_t communication_format; /*!< I2S communication format */
int intr_alloc_flags; /*!< Flags used to allocate the interrupt. One or multiple (ORred) ESP_INTR_FLAG_* values. See esp_intr_alloc.h for more info */
int dma_buf_count; /*!< I2S DMA Buffer Count */
int dma_buf_len; /*!< I2S DMA Buffer Length */
bool use_apll; /*!< I2S using APLL as main I2S clock, enable it to get accurate clock */
int fixed_mclk; /*!< I2S using fixed MCLK output. If use_apll = true and fixed_mclk > 0, then the clock output for i2s is fixed and equal to the fixed_mclk value.*/
} i2s_config_t;
最新的sdk中有这样的结构体fixed_mclk，楼主是用这个解决的吗？
level 1
driver.c
//使用gpio 0 将mclk发出来
i2s_driver_install(I2S_NUM, &i2s_config, 0, NULL);
i2s_set_pin(I2S_NUM, &pin_config);
io_mux_reg.h
#define PIN_CTRL (DR_REG_IO_MUX_BASE +0x00)
#define CLK_OUT3 0xf
#define CLK_OUT3_V 0xf
#define CLK_OUT3_S 8
#define CLK_OUT2 0xf
#define CLK_OUT2_V 0xf
#define CLK_OUT2_S 4
#define CLK_OUT1 0xf
#define CLK_OUT1_V 0xf
#define CLK_OUT1_S 0
2018年04月04日 09点04分
6
//使用gpio 0 将mclk发出来
i2s_driver_install(I2S_NUM, &i2s_config, 0, NULL);
i2s_set_pin(I2S_NUM, &pin_config);
io_mux_reg.h
#define PIN_CTRL (DR_REG_IO_MUX_BASE +0x00)
#define CLK_OUT3 0xf
#define CLK_OUT3_V 0xf
#define CLK_OUT3_S 8
#define CLK_OUT2 0xf
#define CLK_OUT2_V 0xf
#define CLK_OUT2_S 4
#define CLK_OUT1 0xf
#define CLK_OUT1_V 0xf
#define CLK_OUT1_S 0
