C51 使用端口 个人笔记 使用整个端口的8个引脚: 使用某个端口的某一个引脚
八个引脚,需要8位2进制,2位十六进制
#define P0 led
led = 0x3f;
//led = ~0x3f;
使用某个端口的某一个引脚
sbit led = P0^0;
led = 1;
八个引脚,需要8位2进制,2位十六进制
#define P0 led
led = 0x3f;
//led = ~0x3f;
sbit led = P0^0;
led = 1;