单片机C语言程序设计实训例
《单片机C语言程序设计实训100例---基于8051和PROTEUS仿真》案例01 闪烁的LED
LED 名称：闪烁的/*
按设定的时间间隔闪烁说明：LED*/
#include
#define uchar unsigned char
#define uint unsigned int
sbit LED=P1^0;
延时//void DelayMS(uint x)
{
uchar i;
while(x--)
{
for(i=0;i<120;i++);
}
}
//主程序void main()
{
while(1)
{
LED=~LED;
DelayMS(150);
}
}
02 从左到右的流水灯
名称：从左到右的流水灯/*
LED个接在P0口的8 说明：产生走从左到右循环依次点亮，马灯效果*/ #include
#include
#define uchar unsigned char
#define uint unsigned int
延时//void DelayMS(uint x)
{
uchar i;
while(x--)
{
1
上海师范大学信息与机电工程学院—倪继锋
《单片机C语言程序设计实训100例---基于8051和PROTEUS仿真》案例
for(i=0;i<120;i++);
}
}
//主程序
void main()
{
P0=0xfe;
while(1)
{
P0=_crol_(P0,1); //P0的值向左循环移动
DelayMS(150);
}
}
03 8只LED左右来回点亮
/* 名称：8只LED左右来回点亮
说明：程序利用循环移位函数_crol_和_cror_形成来回滚动的效果
#include
#include
#define uchar unsigned char
#define uint unsigned int
//延时void DelayMS(uint x)
{
uchar i;
while(x--)
{
for(i=0;i<120;i++);
}
}
主程序//void main()
{
uchar i;
P2=0x01;
while(1)
{
for(i=0;i<7;i++)
{
P2=_crol_(P2,1); //P2 的值向左循环移动
DelayMS(150);
}
for(i=0;i<7;i++)
2
上海师范大学信息与机电工程学院—倪继锋
《单片机C语言程序设计实训100例---基于8051和PROTEUS仿真》案例{
P2=_cror_(P2,1); //P2的值向右循环移动
DelayMS(150);
}
}
}
04 花样流水灯
名称：花样流水灯/*
分两组只LED 说明：16 按预设的多种花样变换显示*/
#include
#define uchar unsigned char
#define uint unsigned int
uchar code Pattern_P0[]=
{
0xfc,0xf9,0xf3,0xe7,0xcf,0x9f,0x3f,0x7f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xe7,0xdb,0xbd,0x7e,0xbd,0xdb,0xe7,0xff,0xe7,0xc3,0x81,0x00,0x81,0xc3,0xe7,0xff, 0xaa,0x55,0x18,0xff,0xf0,0x0f,0x00,0xff,0xf8,0xf1,0xe3,0xc7,0x8f,0x1f,0x3f,0x7f,
0x7f,0x3f,0x1f,0x8f,0xc7,0xe3,0xf1,0xf8,0xff,0x00,0x00,0xff,0xff,0x0f,0xf0,0xff,
0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe,
0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe, 0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff
};
uchar code Pattern_P2[]=
{
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xfc,0xf9,0xf3,0xe7,0xcf,0x9f,0x3f,0xff,
0xe7,0xdb,0xbd,0x7e,0xbd,0xdb,0xe7,0xff,0xe7,0xc3,0x81,0x00,0x81,0xc3,0xe7,0xff, 0xaa,0x55,0x18,0xff,0xf0,0x0f,0x00,0xff,0xf8,0xf1,0xe3,0xc7,0x8f,0x1f,0x3f,0x7f,
0x7f,0x3f,0x1f,0x8f,0xc7,0xe3,0xf1,0xf8,0xff,0x00,0x00,0xff,0xff,0x0f,0xf0,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,
0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00,
0x00,0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff
};
延时//void DelayMS(uint x)
{
uchar i;
3
上海师范大学信息与机电工程学院—倪继锋
《单片机C语言程序设计实训100例---基于8051和PROTEUS仿真》案例
while(x--)
{
for(i=0;i<120;i++);
}
}
//主程序
void main()
{
uchar i;
while(1)
{ //从数组中读取数据送至P0和P2口显示
for(i=0;i<136;i++)
{
P0=Pattern_P0[i];
P2=Pattern_P2[i];
DelayMS(100);
}
}
}
LED模拟交通灯05
LED模拟交通灯/* 名称：说明：东西向绿灯亮若干秒，黄
南红灯亮后，5次后红灯亮，灯闪烁北向由红灯变为绿灯，若干秒后南北此后变红灯，东西向变5向黄灯闪烁绿灯，如此重复。*/
#include
#define uchar unsigned char
#define uint unsigned int
//东西向灯sbit RED_A=P0^0;
sbit YELLOW_A=P0^1;
sbit GREEN_A=P0^2;
南北向灯//sbit RED_B=P0^3;
sbit YELLOW_B=P0^4;
sbit GREEN_B=P0^5;
uchar Flash_Count=0,Operation_Type=1; //闪烁次数，操作类型变量//延时void DelayMS(uint x) {
uchar i;
while(x--) for(i=0;i<120;i++);
}
4
上海师范大学信息与机电工程学院—倪继锋
《单片机C语言程序设计实训100例---基于8051和PROTEUS仿真》案例
//交通灯切换
void Traffic_Light()
{
switch(Operation_Type)
{
case 1: //东西向绿灯与南北向红灯亮
RED_A=1;YELLOW_A=1;GREEN_A=0;
RED_B=0;YELLOW_B=1;GREEN_B=1;
DelayMS(2000);
Operation_Type=2;
break;
case 2: //东西向黄灯闪烁，绿灯关闭
DelayMS(300);
YELLOW_A=~YELLOW_A;GREEN_A=1;
if(++Flash_Count!=10) return; //闪烁5次
Flash_Count=0;
Operation_Type=3;
break;
case 3: //东西向红灯，南北向绿灯亮
RED_A=0;YELLOW_A=1;GREEN_A=1;
RED_B=1;YELLOW_B=1;GREEN_B=0;
DelayMS(2000);
Operation_Type=4;
break;
case 4: //南北向黄灯闪烁5次
DelayMS(300);
YELLOW_B=~YELLOW_B;GREEN_B=1;
if(++Flash_Count!=10) return;
Flash_Count=0;
Operation_Type=1;
}
}
//主程序
void main()
{
while(1) Traffic_Light();
}
06 单只数码管循环显示0~9
/* 名称：单只数码管循环显示0~9
说明：主程序中的循环语句反复将0~9的段码送至P0口，使数字0~9循环显示*/
#include
#include
5
上海师范大学信息与机电工程学院—倪继锋
《单片机C语言程序设计实训100例---基于8051和PROTEUS仿真》案例
#define uchar unsigned char
#define uint unsigned int
uchar code DSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff}; //延时
void DelayMS(uint x)
{
uchar t;
while(x--) for(t=0;t<120;t++);
}
主程序//void main()
{
uchar i=0;
P0=0x00;
while(1)
/* {
P0=~DSY_CODE[i]; for(;i<11;i++){
*/ 另一方案//注:DelayMS(300);}
P0=~DSY_CODE[i];
i=(i+1)_x0010_;
DelayMS(300);
}
}