单片机C语言程序设计实训100例基于8051+PROTEUS仿真.docx
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单片机C语言程序设计实训100例基于8051+PROTEUS仿真
《单片机C语言程序设计实训100例—基于8051+Proteus仿真》案例
第01篇基础程序设计
01闪烁的LED
/*名称:
闪烁的LED
说明:
LED按设定的时间间隔闪烁
*/
#include
#defineucharunsignedchar
#defineuintunsignedint
sbitLED=P1^0;
//延时
voidDelayMS(uintx)
{
uchari;
while(x--)
{
for(i=0;i<120;i++);
}
}
//主程序
voidmain()
{
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
说明:
接在P0口的8个LED从左到右循环依次点亮,产生走马灯效果
*/
#include
#include
#defineucharunsignedchar
#defineuintunsignedint
//延时
voidDelayMS(uintx)
{
uchari;
while(x--)
{
for(i=0;i<120;i++);
}
}
//主程序
voidmain()
{
P0=0xfe;
while
(1)
{
P0=_crol_(P0,1);//P0的值向左循环移动
DelayMS(150);
}
}
038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
#defineucharunsignedchar
#defineuintunsignedint
//延时
voidDelayMS(uintx)
{
uchari;
while(x--)
{
for(i=0;i<120;i++);
}
}
//主程序
voidmain()
{
uchari;
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++)
{
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
说明:
16只LED分两组按预设的多种花样变换显示
*/
#include
#defineucharunsignedchar
#defineuintunsignedint
ucharcodePattern_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
};
ucharcodePattern_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
voidDelayMS(uintx)
{
uchari;
while(x--)
{
for(i=0;i<120;i++);
}
}
//主程序
voidmain()
{
uchari;
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);
}
}
}
05LED模拟交通灯
/*名称:
LED模拟交通灯
说明:
东西向绿灯亮若干秒,黄灯闪烁5次后红灯亮,红灯亮后,南北向由红灯变为绿灯,若干秒后南北向黄灯闪烁5此后变红灯,东西向变绿灯,如此重复。
*/
#include
#defineucharunsignedchar
#defineuintunsignedint
sbitRED_A=P0^0;//东西向灯
sbitYELLOW_A=P0^1;
sbitGREEN_A=P0^2;
sbitRED_B=P0^3;//南北向灯
sbitYELLOW_B=P0^4;
sbitGREEN_B=P0^5;
ucharFlash_Count=0,Operation_Type=1;//闪烁次数,操作类型变量
//延时
voidDelayMS(uintx)
{
uchari;
while(x--)for(i=0;i<120;i++);
}
//交通灯切换
voidTraffic_Light()
{
switch(Operation_Type)
{
case1:
//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;
case2:
//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;
case3:
//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;
case4:
//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
voidmain()
{
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
#defineucharunsignedchar
#defineuintunsignedint
ucharcodeDSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};
//延时
voidDelayMS(uintx)
{
uchart;
while(x--)for(t=0;t<120;t++);
}
//主程序
voidmain()
{
uchari=0;
P0=0x00;
while
(1)
{/*for(;i<11;i++){P0=~DSY_CODE[i];DelayMS(300);}//注:
另一方案*/
P0=~DSY_CODE[i];
i=(i+1)%10;
DelayMS(300);
}
}
078只数码管滚动显示单个数字
/*名称:
8只数码管滚动显示单个数字
说明:
数码管从左到右依次滚动显示0~7,程序通过每次仅循环选通一只数码管
*/
#include
#include
#defineucharunsignedchar
#defineuintunsignedint
ucharcodeDSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
//延时
voidDelayMS(uintx)
{
uchart;
while(x--)for(t=0;t<120;t++);
}
//主程序
voidmain()
{
uchari,wei=0x80;
while
(1)
{
for(i=0;i<8;i++)
{
P2=0xff;//关闭显示
wei=_crol_(wei,1);
P0=DSY_CODE[i];//发送数字段码
P2=wei;//发送位码
DelayMS(300);
}
}
}
088只数码管动态显示多个不同字符
电路如上图
/*名称:
8只数码管动态显示多个不同字符
说明:
数码管动态扫描显示0~7。
*/
#include
#include
#defineucharunsignedchar
#defineuintunsignedint
ucharcodeDSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
//延时
voidDelayMS(uintx)
{
uchart;
while(x--)for(t=0;t<120;t++);
}
//主程序
voidmain()
{
uchari,wei=0x80;
while
(1)
{
for(i=0;i<8;i++)
{
P2=0xff;
P0=DSY_CODE[i];//发送段码
wei=_crol_(wei,1);
P2=wei;//发送位码
DelayMS
(2);
}
}
}
098只数码管闪烁显示数字串
电路如上图
/*名称:
8只数码管闪烁显示数字串
说明:
数码管闪烁显示由0~7构成的一串数字
本例用动态刷新法显示一串数字,在停止刷新时所有数字显示消失。
*/
#include
#defineucharunsignedchar
#defineuintunsignedint
//段码表
ucharcodeDSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
//位码表
ucharcodeDSY_IDX[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
//延时
voidDelayMS(uintx)
{
uchart;
while(x--)for(t=0;t<120;t++);
}
//主程序
voidmain()
{
uchari,j;
while
(1)
{
for(i=0;i<30;i++)
{
for(j=0;j<8;j++)
{
P0=0xff;
P0=DSY_CODE[j];//发送段码
P2=DSY_IDX[j];//发送位码
DelayMS
(2);
}
}
P2=0x00;//关闭所有数码管并延时
DelayMS(1000);
}
}
108只数码管滚动显示数字串
电路如上图
/*名称:
8只数码管滚动显示数字串
说明:
数码管向左滚动显示3个字符构成的数字串
*/
#include
#include
#defineucharunsignedchar
#defineuintunsignedint
//段码表
ucharcodeDSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};
//下面数组看作环形队列,显示从某个数开始的8个数(10表示黑屏)
ucharNum[]={10,10,10,10,10,10,10,10,2,9,8};
//延时
voidDelayMS(uintx)
{
uchart;
while(x--)for(t=0;t<120;t++);
}
//主程序
voidmain()
{
uchari,j,k=0,m=0x80;
while
(1)
{//刷新若干次,保持一段时间的稳定显示
for(i=0;i<15;i++)
{
for(j=0;j<8;j++)
{//发送段码,采用环形取法,从第k个开始取第j个
P0=0xff;
P0=DSY_CODE[Num[(k+j)%11]];
m=_crol_(m,1);
P2=m;//发送位码
DelayMS
(2);
}
}
k=(k+1)%11;//环形队列首支针k递增,Num下标范围0~10,故对11取余
}
}
11K1-K4控制LED移位
/*名称:
K1-K4控制LED移位
说明:
按下K1时,P0口LED上移一位;
按下K2时,P0口LED下移一位;
按下K3时,P2口LED上移一位;
按下K4时,P2口LED下移一位;
*/
#include
#include
#defineucharunsignedchar
#defineuintunsignedint
//延时
voidDelayMS(uintx)
{
uchari;
while(x--)for(i=0;i<120;i++);
}
//根据P1口的按键移动LED
voidMove_LED()
{
if((P1&0x10)==0)P0=_cror_(P0,1);//K1
elseif((P1&0x20)==0)P0=_crol_(P0,1);//K2
elseif((P1&0x40)==0)P2=_cror_(P2,1);//K3
elseif((P1&0x80)==0)P2=_crol_(P2,1);//K4
}
//主程序
voidmain()
{
ucharRecent_Key;//最近按键
P0=0xfe;
P2=0xfe;
P1=0xff;
Recent_Key=0xff;
while
(1)
{
if(Recent_Key!
=P1)
{
Recent_Key=P1;//保存最近按键
Move_LED();
DelayMS(10);
}
}
}
12K1-K4按键状态显示
/*名称:
K1-K4按键状态显示
说明:
K1、K2按下时LED点亮,松开时熄灭,
K3、K4按下并释放时LED点亮,再次按下并释放时熄灭;
*/
#include
#defineucharunsignedchar
#defineuintunsignedint
sbitLED1=P0^0;
sbitLED2=P0^1;
sbitLED3=P0^2;
sbitLED4=P0^3;
sbitK1=P1^0;
sbitK2=P1^1;
sbitK3=P1^2;
sbitK4=P1^3;
//延时
voidDelayMS(uintx)
{
uchari;
while(x--)for(i=0;i<120;i++);
}
//主程序
voidmain()
{
P0=0xff;
P1=0xff;
while
(1)
{
LED1=K1;
LED2=K2;
if(K3==0)
{
while(K3==0);
LED3=~LED3;
}
if(K4==0)
{
while(K4==0);
LED4=~LED4;
}
DelayMS(10);
}
}
13K1-K4分组控制LED
/*名称:
K1-K4分组控制LED
说明:
每次按下K1时递增点亮一只LED,全亮时再次按下则再次循环开始,
K2按下后点亮上面4只LED,K3按下后点亮下面4只LED,K4按下后关闭所有LED
*/
#include
#defineucharunsignedchar
#defineuintunsignedint
//延时
voidDelayMS(uintx)
{
uchari;
while(x--)for(i=0;i<120;i++);
}
//主程序
voidmain()
{
uchark,t,Key_State;
P0=0xff;
P1=0xff;
while
(1)
{
t=P1;
if(t!
=0xff)
{
DelayMS(10);
if(t!
=P1)continue;
//取得4位按键值,由模式XXXX1111(X中有一位为0,其他均为1)
//变为模式0000XXXX(X中有一位为1,其他均为0)
Key_State=~t>>4;
k=0;
//检查1所在位置,累加获取按键号k
while(Key_State!
=0)
{
k++;
Key_State>>=1;
}
//根据按键号k进行4种处理
switch(k)
{
case1:
if(P0==0x00)P0=0xff;
P0<<=1;
DelayMS(200);
break;
case2:
P0=0xf0;break;
case3:
P0=0x0f;break;
case4:
P0=0xff;
}
}
}
}
14K1-K4控制数码管移位显示
/*名称:
K1-K4控制数码管移位显示
说明:
按下K1时加1计数并增加显示位,
按下K2时减1计数并减少显示位,
按下K3时清零。
*/
#include
#defineucharunsignedchar
#defineuintunsignedint
//段码
ucharcodeDSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};
//位码
ucharcodeDSY_Index[]={0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01};
//待显示到各数码管的数字缓冲(开始仅在0位显示0,其他黑屏)
ucharDisplay_Buffer[]={0,10,10,10,10,10,10,10};
//延时
voidDelayMS(uintx)
{
uchari;
while(x--)for(i=0;i<120;i++);
}
voidS