From 21378f007ff49ec46f571b0fc71b64cc4327fd5f Mon Sep 17 00:00:00 2001 From: Wang Fang Date: Thu, 4 Nov 2021 14:26:43 +0800 Subject: [PATCH] docs: add a note to mck_io_num: for esp32, only gpio0/gpio1/gpio3 can be set --- components/driver/include/driver/i2s.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/components/driver/include/driver/i2s.h b/components/driver/include/driver/i2s.h index aa649ed479..8521257849 100644 --- a/components/driver/include/driver/i2s.h +++ b/components/driver/include/driver/i2s.h @@ -78,7 +78,7 @@ 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 ws_io_num; /*!< WS in out pin*/ int data_out_num; /*!< DATA out pin*/