P1DIR = 0XFF
时间: 2023-08-23 20:13:03 浏览: 98
引用\[1\]: 在给P1DIR赋值时,使用了十六进制表示法,0xFF表示二进制的11111111。这样的赋值将P1的所有引脚都设置为输出模式。因为P1_0是LED1的控制端口,所以这个赋值语句的作用是将LED1的控制端口设置为输出模式。\[1\]
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