74hc164驱动数码管

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1、下面是74ls164驱动共阳数码管的演示程序,电路请看附件＃include#defineuintunsignedint#defineucharunsignedcharsbitDAT=P1^1;//模拟串口数据发送端sbitCLK=P1^2;//模拟时钟控制端ucharcodetab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xbf,0xff};//0-9,-,全灭(共阳字段表)voidsendbyte(uchar

2、byte){          ucharnum,c;       num=tab[byte]; for(c=0;c<8;c++)       {   CLK=0; DAT=num&0x80;//(0x80即十进制的128,二进制的10000000按位发送) CLK=1;       num<<=1;                     }}voiddelay_50ms(unsignedintt)//50MS演示程序{unsignedintj; for(;t>0;t--) for(j=624

3、5;j>0;j--){;}}main(){unsignedcharh; while(1){ for(h=0;h<10;h++){     delay_50ms(1);     sendbyte(h); delay_50ms(10); } h=0;   }}下面这段是74ls164驱动共阴数码管的程序源码＃include#defineuintunsignedint#defineucharunsignedcharsbitDAT=P1^1;sbitCLK=P1^2;ucharcode

4、tab[]={0xfc,0x60,0xda,0xf2,0x66,0xb6,0xbe,0xe0,0xff,0xf6};//0-9,-,全灭voidsendbyte(ucharbyte){          ucharnum,c;       num=tab[byte]; for(c=0;c<8;c++)       {   CLK=0; DAT=num&0x01; CLK=1;       num>>=1;                     }}voiddelay_50ms(unsigned

5、intt){unsignedintj; for(;t>0;t--) for(j=6245;j>0;j--){;}}main(){unsignedcharh; while(1){ for(h=0;h<10;h++){     delay_50ms(1);     sendbyte(h); delay_50ms(10); } h=0;   }   }0人  

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