74HC138驱动 

 1 sbit HC138_CH1 = P2^4;
 2 sbit HC138_CH2 = P2^5; 
 3 sbit HC138_CH3 = P2^6; 
 4  
 5 void Decoding (unsigned char m)
 6 {
 7     m =~ m; 
 8     HC138_CH1 = m&0x01;
 9     HC138_CH2 = (m&0x02)>>1;
10     HC138_CH3 = (m&0x04)>>2;
11 }

 

posted @ 2019-09-18 22:30  年小猫  阅读(359)  评论(0)  编辑  收藏  举报