天祥单片机习题.doc

lesson2-1 //?第一个发光管以间隔200ms闪烁 #includereg52.h#define uint unsigned intsbit d1=P1^0;void delay(uint);void main(){?while(1)?? {??? d1=0;??? delay(200);??? d1=1;??? delay(200);????? }}void delay(uint z){?uint x,y;?? for(x=z;x0;x--)???? for(y=110;y0;y--);} lesson2-2(2009-01-02 17:16:19) 标签：杂谈? 分类：单片机 //8个发光管由上至下间隔1s流动，其中每个管亮500ms,灭500ms,亮时蜂鸣器响，灭时关闭蜂鸣器，一直重复下去。 #includereg52.h?#include intrins.h#define uint unsigned int??#define uchar unsigned charsbit beep=P3^7;void delay(uint z){?????uint x,y;?for(x=z;x0;x--)??for(y=110;y0;y--);?}void main()??{?uchar a;?a=0xfe;?while(1)????????{??P1=a;???????beep=0;?????delay(500);??P1=0xff;????beep=1;?????delay(500);??a=_crol_(a,1); ???}} lesson2-3 //8个发光管来回流动，第个管亮100ms,流动时让蜂鸣器发出“滴滴”声。 #includereg52.h#includeintrins.h#define uint unsigned int#define uchar unsigned charsbit beep=P3^7;void delay(uint z){爑int x,y;牋 for(x=z;x0;x--)牋?for(y=110;y0;y--);}void main(){爑char a,i;牋 while(1)牋{牋?a=0xfe;牋牋?for(i=8;i{??P1=a;???0;i--)牋爗牋牋 P1=a;牋牋 beep=0;牋牋 delay(50);牋牋牋牋牋 beep=1;牋牋 delay(50);牋牋 a=_crol_(a,1);牋爙牋燼=0x7f;牋牋 for(i=8;i0;i--)牋牋牋爗牋牋?P1=a;牋牋?beep=0;牋牋?delay(50);牋牋牋牋牋?beep=1;牋牋?delay(50);牋牋?a=_cror_(a,1);牋爙牋牋 }} lesson2-4(2009-01-02 18:26:41) 标签：杂谈? 分类：单片机 //用8个发光管演示出8位二进制数累加过程。 #includereg52.h?#include intrins.h#define uint unsigned int??#define uchar unsigned charvoid delay(uint z){??????uint x,y;?for(x=z;x0;x--)??for(y=110;y0;y--);?}void main()????{?uchar a;?while(1)????????{??? a++;??P1=~a;????delay(200);??}} -5(2009-01-02 18:28:41) 标签：杂谈? 分类：单片机 //8个发光管间隔200ms由上至下，再由下至上，再重复一次，然后全部熄灭再以300ms间隔全部闪烁5次。重复此过程。 #includereg52.h#includeintrins.h#define uchar unsigned char#define uint unsigned intvoid delay(uint z);void main(){牋 uint m,n;爓hile(1)爗爑int a;牋for(n=0;n2;n++)牋牋牋?{牋牋牋牋牋牋?牋?牋牋?a=0xfe;牋牋牋牋?for(m=0;m8;m++)牋牋牋牋?? a++;??P1=~a;????delay(200?{牋牋燩1=a;牋牋燼=_crol_(a,1);牋牋