点亮LEDweb
#include <reg52.h> sbit LED=P2^0; void main() { while(1) { LED=0; } }
LED闪烁(delay函数)数组
#include <reg52.h> sbit LED = P2^0;//管脚定义 void delay(unsigned char m)//m是形式参数 { unsigned char i,j; for (i=110;i>0;i--) for (j=m;j>0;j--); } void main() { while (1) { LED=0; delay(100); LED=1; delay(100); } }
LED闪烁svg
#include <reg52.h> sbit LED1=P1^0; unsigned int i; void main() { while(1) { i=65535; while(i--); LED1=~LED1; } }
流水灯(库函数法)函数
#include <reg52.h> #include <intrins.h> #define uint unsigned int #define uchar unsigned char uchar temp; void delay(uint m) { uint i,j; for (i=m;i>0;i--) for (j=114;j>0;j--); } void main() { temp = 0xfe; P1 = temp; delay(100); while(1) { temp = _crol_(temp,1); P1=temp; delay(100); } }
流水灯(左移法)ui
#include <reg52.h> #define uint unsigned int #define uchar unsigned char void delay(uint m) { uint i,j; for (i=110;i>0;i--) for (j=m;j>0;j--); } void main() { P1=0x01; while(1) { delay(500); P1=P1<<1; if(P1==0x00) P1=0x01; } }
流水灯(查找数组法)spa
#include <reg52.h> #define uint unsigned int #define uchar unsigned char uchar table[]={ 0x01,0x02,0x04,0x08, 0x10,0x20,0x40,0x80}; uchar p; void delay(uint m) { uint i,j; for (i=110;i>0;i--) for (j=m;j>0;j--) ; } void main() { while (1) { for(p=0;p<8;p++) { P1=table[p]; delay(500); } } }
流水灯(右移法)code
#include <reg52.h> #define uint unsigned int #define uchar unsigned char void delay(uint m) { uint i,j; for (i=110;i>0;i--) for (j=m;j>0;j--); } void main() { P1=0x80; while(1) { delay(500); P1=P1>>1; if(P1==0x00) P1=0x01; } }
菜鸟刚上路,见笑了xml