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今天在使用PG8 PG9 做为TWI1输出的时候，总是有问题，后面查询pinctrl-sun8iw20.c 文件发现，PG9的定义居然是，twi0的，datesheet里面显示function为twi1.不知道什么原因。是我拉的SDK有问题吗？
sdk写错了，自行改一下就行
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