1、单片机C语言程序设计实训入门学习资料入门资料单片机C语言程序设计实训100例基于8051+ Proteus仿真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 #define uchar unsigned char #define uint unsigned int sbit LED=P10; /延时 void DelayMS(uint x) uchar i; while(x-) for(i=0;i120;i+); /主程序 void main() while(1) LED=LED; DelayMS(150); 02 从左到右的流水灯
2、 /* 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 #define uchar unsigned char #define uint unsigned int /延时 void DelayMS(uint x) uchar i; while(x-) for(i=0;i120;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 LE
3、D 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;i120;i+); /主程序 void main() uchar i; P2=0x01; while(1) for(i=0;i7;i+) P2=_crol_(P2,1); /P2 的值向左循环移动 DelayMS(150); for(i=0;i7;i+)
4、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 #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,0xe7,0x
5、ff,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,0xf
6、f,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,
7、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,0x
8、ff,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,0xf
9、e,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, 0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff ; /延时 void DelayMS(uint x) uchar i; while(x-) for(i=0;i120;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;i136;i+) P0=Pattern_P0i; P2=Pattern_P2i; DelayMS(100); 05 LED 模拟交通灯 /* 名称:LED 模拟交通灯 说明
10、: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 #define uchar unsigned char #define uint unsigned int sbit RED_A=P00; /东西向灯 sbit YELLOW_A=P01; sbit GREEN_A=P02; sbit RED_B=P03; /南北向灯 sbit YELLOW_B=P04; sbit GREEN_B=P05; uchar Flash_Count=0,Operation_Type=1; /闪烁次
11、数,操作类型变量 /延时 void DelayMS(uint x) uchar i; while(x-) for(i=0;i120;i+); /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;GR
12、EEN_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;
13、 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 09 /* 名称:单只数码管循环显示 09 说明:主程序中的循环语句反复将 09 的段码送至 P0 口,使数字 09 循环显示*/#include #include #define uchar unsigned char #define uint unsigned int uchar code DSY_CODE=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xf
14、f; /延时 void DelayMS(uint x) uchar t; while(x-) for(t=0;t120;t+); /主程序 void main() uchar i=0; P0=0x00; while(1) P0=DSY_CODEi; i=(i+1)%10; DelayMS(300); 07 8 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07,程序通过每次仅循环选通一只数码管 */ #include #include #define uchar unsigned char #define uint unsigned int
15、 uchar code DSY_CODE=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90; /延时 void DelayMS(uint x) uchar t; while(x-) for(t=0;t120;t+); /主程序 void main() uchar i,wei=0x80; while(1) for(i=0;i8;i+) P2=0xff; /关闭显示 wei=_crol_(wei,1); P0=DSY_CODEi; /发送数字段码 P2=wei; /发送位码 DelayMS(300); 8 只数码管动态显示多个不同字符(电路如上图
16、) /* 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 07。 */ #include #include #define uchar unsigned char #define uint unsigned int uchar code DSY_CODE=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90; /延时 void DelayMS(uint x) uchar t; while(x-) for(t=0;t120;t+); /主程序 void main() uchar i,wei=0x80; while(1) for(i=
17、0;i8;i+) P0=0xff; P0=DSY_CODEi; /发送段码 wei=_crol_(wei,1); P2=wei; /发送位码 DelayMS(2); 09 8 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 07 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 #define uchar unsigned char #define uint unsigned int /段码表 uchar code DSY_CODE=0xc0,0xf9,0xa4,0xb0,0x99,0x92,
18、0x82,0xf8,0x80,0x90; /位码表 uchar code DSY_IDX=0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80; /延时 void DelayMS(uint x) uchar t; while(x-) for(t=0;t120;t+); /主程序 void main() uchar i,j; while(1) for(i=0;i30;i+) for(j=0;j8;j+) P0=0xff; P0=DSY_CODEj; /发送段码 P2=DSY_IDXj; /发送位码 DelayMS(2); P2=0x00; /关闭所有数码管并延时 Del
19、ayMS(1000); 10 8 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 #define uchar unsigned char #define uint unsigned int /段码表 uchar code DSY_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) uchar Num=10,10,10,10,10,10,1
20、0,10,2,9,8; /延时 void DelayMS(uint x) uchar t; while(x-) for(t=0;t120;t+); /主程序 void main() uchar i,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;i15;i+) for(j=0;j8;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_CODENum(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
21、 下标范围 010,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 #define uchar unsigned char #define uint unsigned int /延时 void DelayMS(uint x) uchar i; while(x-) for(i=0;i120;i+); / 根 据 P1 口
22、的 按 键 移动LED void Move_LED() if (P1&0x10)=0) P0=_cror_(P0,1); /K1 else if(P1&0x20)=0) P0=_crol_(P0,1); /K2 else if(P1&0x40)=0) P2=_cror_(P2,1); /K3 else if(P1&0x80)=0) P2=_crol_(P2,1); /K4 /主程序 void main() uchar Recent_Key; /最近按键 P0=0xfe; P2=0xfe; P1=0xff; Recent_Key=0xff; while(1) if(Recent_Key!=P1)
23、 Recent_Key=P1; /保存最近按键 Move_LED(); DelayMS(10); 12 K1-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 #define uchar unsigned char #define uint unsigned int sbit LED1=P00; sbit LED2=P01; sbit LED3=P02; sbit LED4=P03; sbit K1=P10; sbit K2=P11; sbit K
24、3=P12; sbit K4=P13; /延时 void DelayMS(uint x) uchar i; while(x-) for(i=0;i120;i+); /主程序 void main() 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); 13 K1-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,
25、 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 #define uchar unsigned char #define uint unsigned int /延时 void DelayMS(uint x) uchar i; while(x-) for(i=0;i4; 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) case 1: if(P0=0x00) P0=0xff; P0=1;
26、 DelayMS(200); break; case 2: P0=0xf0;break; case 3: P0=0x0f;break; case 4: P0=0xff; 14 K1-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, K3 时清零。*/ #include #define uchar unsigned char #define uint unsigned int /段码 uchar code DSY_CODE=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff; /位码 uchar code DSY_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) uchar Display_Buffer=0,10,10,10,10,10,10,10; /延时 void DelayMS(uint x) uchar i; while(x-)
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