74HC595控制LED流水灯(共2页).doc

74HC595控制LED流水灯 软件设计：/* 74HC595 流水灯演示程序 */#include /51芯片管脚定义头文件#include /内部包含延时函数 _nop_() ;sbit SDA=P10;sbit CLK=P11;sbit LEDP=P17;void delay(unsigned int i) unsigned int j,k;for(k=0;ki;k+) for(j=0;j1000;j+) ;void send(unsigned char a)unsigned char i;for(i=0;i8;i+) if(_crol_(a,i)&0x80) SDA=1; else SDA=0; CLK=1; delay(0x10); CLK=0; main() unsigned char m;unsigned char DLED;LEDP=0x11