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gpio14-17，gpio39-42都被网口占用
@yy88 GPIO11可用，如果不用音频的话，I2S口、I2C也可以作为IO
谢谢回复。 我不用音频，打算引出bit3模块中GPIO11，I2C 2个引脚，I2S除SDO的3个引脚，UART1的RxD1，共7个作为普通gpio，是否可行？
@yy88 可行，正好避开了bootstrap相关引脚。