单片机实验设计报告(2)

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0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00, /*空*/ 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00 }; unsigned int i,i1,i2,i3,i_2,i_3,j; unsigned char m,n,cnt,k,flag;

main()

{ SP=0x50; //堆栈指针

TMOD=0X01; //选择定时器0的工作方式1 TH0=(65535-50000)/256; //给定时器赋初值 TL0=(65535-50000)%256;

EA=1; //中断总允许 ET0=1; //T0中断允许 EX0=1; //外中断0中断允许 TR0=1; //启动定时器

PT0=1; //定时器T0中断优先级控制 cnt=0; //初始化变量 i1=0;

i2=0;

i=0; i_2=0;

XK=0X80; //写IO口的工作方式 //A , B , C 口均输出 closedisp(); //调用关屏子函数 while(1) {

if(flag==1)

dp(); //显示“兰州交通大学电信学院” if(flag==2)

dp1(); // if(flag==3)

dp2(); // } }

void dp()

{

disp(); // if(cnt==10) // { i=i+32; // cnt=0;

if(i>21*16) // i=0; } }

void dp1() {

disp1(); // if(cnt==4) // { i_2=i_2+32; // cnt=0;

if(i_2>29*16) // i_2=0; } }

void dp2() {

disp2(); // if(cnt==2) // { i_3=i_3+32; // cnt=0;

if(i_3>41*16) // i_3=0; }

模拟显示开幕过程 模拟显示两个小球物理碰撞过程 调用显示一整屏子函数 显示间隔为1s 显示下一屏 判断数组tab[]是否显示完毕 调用显示一整屏子函数 显示间隔为0.4s 显示下一屏

判断数组tab1[]是否显示完毕 调用显示一整屏子函数 显示间隔为0.2s 显示下一屏 判断数组tab2[]是否显示完毕

}

void closedisp() //关显示屏函数 { XPB=0XFF; X273=0XFF; }

void disp()

{ i1=i;

n=0x7f; //0111 1111 for(m=0;m<8;m++)

{XPC=tab[i1++]; //给点阵列（即二极管的正极）L8---L15送数据 XPA=tab[i1++]; //给点阵列（即二极管的正极）L0---L7送数据

XPB=n; //给行赋值（即二极管负极） ，让前8行某一行为低电平，其余行为高电平 for(j=0;j<20;j++); //刷新点阵延时 n=_cror_(n,1); //n循环右移

closedisp(); //调用关屏子函数 }

n=0x7f; //0111 1111 for(m=0;m<8;m++)

{XPC=tab[i1++]; //给点阵列（即二极管的正极）L8---L15送数据 XPA=tab[i1++]; //给点阵列（即二极管的正极）L0---L7送数据

X273=n; //给行赋值（即二极管负极） ，让后8行某一行为低电平，其余行为高电平 for(j=0;j<20;j++); //刷新点阵延时 n=_cror_(n,1); //n循环右移

closedisp(); //调用关屏子函数 } }

void disp1()

{ i2=i_2; //0111 1111 for(m=0;m<8;m++)

{XPC=tab1[i2++]; //给点阵列（即二极管的正极）L8---L15送数据 XPA=tab1[i2++]; //给点阵列（即二极管的正极）L0---L7送数据

XPB=n; //给行赋值（即二极管负极） ，让前8行某一行为低电平，其余行为高电平 for(j=0;j<20;j++); //刷新点阵延时 n=_cror_(n,1); //n循环右移

closedisp(); //调用关屏子函数 }

n=0x7f; //0111 1111 for(m=0;m<8;m++)

{XPC=tab1[i2++]; //给点阵列（即二极管的正极）L8---L15送数据 XPA=tab1[i2++]; //给点阵列（即二极管的正极）L0---L7送数据

X273=n; //给行赋值（即二极管负极） ，让后8行某一行为低电平，其余行为高电平 for(j=0;j<20;j++); //刷新点阵延时 n=_cror_(n,1); //n循环右移

closedisp(); //调用关屏子函数 } }

void disp2()

{ i3=i_3; //0111 1111

for(m=0;m<8;m++)

{XPC=tab2[i3++]; //给点阵列（即二极管的正极）L8---L15送数据< …… 此处隐藏：3285字，全部文档内容请下载后查看。喜欢就下载吧 ……