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docs: add a note to mck_io_num: for esp32, only gpio0/gpio1/gpio3 can be set

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Wang Fang
2021-11-04 14:26:43 +08:00
committed by BOT
parent 380ee4b87a
commit 21cdaeade9
1 changed files with 1 additions and 1 deletions
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components/driver/include/driver/i2s.h
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@ -78,7 +78,7 @@ typedef struct {
* *
*/ */
typedef struct { typedef struct {
int mck_io_num; /*!< MCK in out pin*/ int mck_io_num; /*!< MCK in out pin. Note that ESP32 supports setting MCK on GPIO0/GPIO1/GPIO3 only*/
int bck_io_num; /*!< BCK in out pin*/ int bck_io_num; /*!< BCK in out pin*/
int ws_io_num; /*!< WS in out pin*/ int ws_io_num; /*!< WS in out pin*/
int data_out_num; /*!< DATA out pin*/ int data_out_num; /*!< DATA out pin*/