【转帖】POV LED基于51单片机的旋转LED电子钟
http://hi.baidu.com/52_diy/blog/item/d8310dfac0a97716a8d3114b.html
POV即persistancd of vision 利用单片机控制流水灯,通过流水灯移动以及人的视觉暂留效应产生各种图形或文字。效果如下图:
原理比较简单,使用单片机很容易实现,转帖旋转LED电子钟制作详细过程。
关于作者提出的两个难点,个人观点,供电科采用电机单独供电,单片机供电加装在旋转的电路板上。改进电路,使用电子钟芯片,加装备用电池,加装备用电池后也可以很容易解决调时问题。本人打算在次基础上改进一下进行制作,另作者提供的源程序没有任何注释,对与我们新手很不方便,随后我将在电路改进后写出有详细注释的程序,以方便更多人制作,敬请期待。
以下内容转自“艺新工作室”
因学的是C51(不懂汇编)这里只提供C语言源程序。
#include <reg51.h>
sbit gate11=P3^0;
sbit gate12=P3^1;
unsigned char BUFFER[]={0,0,0,0,1,1,7};
unsigned char M[]={31,28,31,30,31,30,31,31,30,31,30,31};
unsigned char maxnum[]={59,23,31,12,99};
unsigned char minnum[]={0,0,1,1,0};
unsigned char yy[34];
unsigned char code NUM1[] =
{
0x80,0x7F,0xC0,0xFF,0x40,0x90,0x40,0x8C, // -0-
0x40,0x82,0xC0,0xFF,0x80,0x7F,0x00,0x00,
0x00,0x00,0x00,0x81,0x80,0x81,0xC0,0xFF, // -1-
0xC0,0xFF,0x00,0x80,0x00,0x80,0x00,0x00,
0x80,0xE0,0xC0,0xF0,0x40,0x98,0x40,0x8C, // -2-
0x40,0x86,0xC0,0xC3,0x80,0xC1,0x00,0x00,
0x80,0x40,0xC0,0xC0,0x40,0x84,0x40,0x84, // -3-
0x40,0x84,0xC0,0xFF,0x80,0x7B,0x00,0x00,
0x00,0x0C,0x00,0x0E,0x00,0x0B,0x80,0x89, // -4-
0xC0,0xFF,0xC0,0xFF,0x00,0x88,0x00,0x00,
0xC0,0x47,0xC0,0xC7,0x40,0x84,0x40,0x84, // -5-
0x40,0x8C,0x40,0xFC,0x40,0x78,0x00,0x00,
0x00,0x7F,0x80,0xFF,0xC0,0x84,0x40,0x84, // -6-
0x40,0x84,0x00,0xFC,0x00,0x78,0x00,0x00,
0xC0,0x00,0xC0,0x00,0x40,0xF0,0x40,0xF8, // -7-
0x40,0x0C,0xC0,0x07,0xC0,0x03,0x00,0x00,
0x80,0x7B,0xC0,0xFF,0x40,0x84,0x40,0x84, // -8-
0x40,0x84,0xC0,0xFF,0x80,0x7B,0x00,0x00,
0x80,0x03,0xC0,0x87,0x40,0x84,0x40,0x84, // -9-
0x40,0xC4,0xC0,0x7F,0x80,0x3F,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x63, // -:-
0x00,0x63,0x00,0x00,0x00,0x00,0x00,0x00,
};
unsigned char code NUM2[]=
{
0x00,0x00,0x7f,0x80,0xff,0xc0,0x82,0x40, // -0-
0x8c,0x40,0x90,0x40,0xff,0xc0,0x7f,0x80,
0x00,0x00,0x00,0x00,0x20,0x40,0x60,0x40, // -1-
0xff,0xc0,0xff,0xc0,0x00,0x40,0x00,0x40,
0x00,0x00,0x41,0xc0,0xc3,0xc0,0x86,0x40, // -2-
0x8c,0x40,0x98,0x40,0xf0,0xc0,0x60,0xc0,
0x00,0x00,0x40,0x80,0xc0,0xc0,0x88,0x40, // -3-
0x88,0x40,0x88,0x40,0xff,0xc0,0x77,0x80,
0x00,0x00,0x0c,0x00,0x1c,0x00,0x34,0x00, // -4-
0x64,0x40,0xff,0xc0,0xff,0xc0,0x04,0x40,
0x00,0x00,0xf8,0x80,0xf8,0xc0,0x88,0x40, // -5-
0x88,0x40,0x8c,0x40,0x8f,0xc0,0x87,0x80,
0x00,0x00,0x3f,0x80,0x7f,0xc0,0xc8,0x40, // -6-
0x88,0x40,0x88,0x40,0x0f,0xc0,0x07,0x80,
0x00,0x00,0xc0,0x00,0xc0,0x00,0x83,0xc0, // -7-
0x87,0xc0,0x8c,0x00,0xf8,0x00,0xf0,0x00,
0x00,0x00,0x77,0x80,0xff,0xc0,0x88,0x40, // -8-
0x88,0x40,0x88,0x40,0xff,0xc0,0x77,0x80,
0x00,0x00,0x70,0x00,0xf8,0x40,0x88,0x40, // -9-
0x88,0x40,0x88,0xc0,0xff,0x80,0x7f,0x00,
0x00,0x00,0x00,0xc0,0x01,0x80,0x03,0x00, // -/-
0x06,0x00,0x0c,0x00,0x18,0x00,0x30,0x00,
};
unsigned char code HZ_12[] =
{
0x80,0x00,0x88,0x1F,0x30,0x48,0x00,0x24, //"调"
0xF0,0x1F,0x10,0x01,0x50,0x1D,0xF0,0x15,
0x50,0x1D,0x10,0x41,0xF8,0x7F,0x10,0x00,
0x00,0x02,0x00,0x41,0x80,0x41,0x60,0x31, //"分"
0x18,0x0F,0x00,0x01,0x00,0x21,0x38,0x41,
0x40,0x3F,0x80,0x00,0x00,0x01,0x00,0x01,
0xE0,0x1F,0x20,0x09,0x20,0x09,0x20,0x09, //"时"
0xE0,0x1F,0x40,0x00,0x40,0x01,0x40,0x26,
0x40,0x40,0xF8,0x7F,0x40,0x00,0x40,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0xF0,0x3F, //"日"
0x10,0x11,0x10,0x11,0x10,0x11,0x10,0x11,
0x10,0x11,0xF8,0x3F,0x10,0x00,0x00,0x00,
0x00,0x40,0x00,0x20,0x00,0x10,0xF8,0x0F, //"月"
0x48,0x02,0x48,0x02,0x48,0x22,0x48,0x42,
0x48,0x42,0xF8,0x3F,0x00,0x00,0x00,0x00,
0x80,0x04,0x40,0x04,0x20,0x04,0x98,0x07, //"年"
0x90,0x04,0x90,0x04,0xF0,0x7F,0x90,0x04,
0x90,0x04,0x98,0x04,0x90,0x04,0x10,0x04
};
unsigned int disp1,disp2,key1,key2,key;
unsigned int ii,jj;
unsigned int i,w,n,xz,CM,TZ,BZ;
void Delay(unsigned int ms){
ms=ms*3;
while(--ms);
}
void num_led(int aa, int bb)
{
int kk;
for(kk=0;kk<8;kk++){
gate11=key1; gate12=key2;
P2=~NUM1[aa+kk*2];P1=~NUM1[aa+1+kk*2];
Delay(20);
P1=0xff;P2=0xff;
gate11=key2; gate12=key1;
P2=~NUM2[bb+15-kk*2];P1=~NUM2[bb+14-kk*2];
Delay(20);
P1=0xff;P2=0xff;
}
}
void display_clock(void)
{
key1=key;key2=!key;
disp1=BUFFER[3]/10;disp2=BUFFER[4]-(BUFFER[4]/10)*10;
ii=disp1*16;jj=disp2*16;
num_led(ii,jj);
P2=0xff;P1=0xff;Delay(60);
disp1=BUFFER[3]-disp1*10;disp2=BUFFER[4]/10;
ii=disp1*16;jj=disp2*16;
num_led(ii,jj);
P2=0xff;P1=0xff;Delay(60);
ii=160;jj=160;
num_led(ii,jj);
P2=0xff;P1=0xff;Delay(60);
disp1=BUFFER[2]/10;disp2=BUFFER[5]-(BUFFER[5]/10)*10;
ii=disp1*16;jj=disp2*16;
num_led(ii,jj);
P2=0xff;P1=0xff;Delay(60);
disp1=BUFFER[2]-disp1*10;disp2=BUFFER[5]/10;
ii=disp1*16;jj=disp2*16;
num_led(ii,jj);
P2=0xff;P1=0xff;Delay(60);
ii=160;jj=160;
num_led(ii,jj);
P2=0xff;P1=0xff;Delay(60);
disp1=BUFFER[1]/10;disp2=BUFFER[6]-(BUFFER[6]/10)*10;
ii=disp1*16;jj=disp2*16;
num_led(ii,jj);
P2=0xff;P1=0xff;Delay(60);
disp1=BUFFER[1]-disp1*10;disp2=BUFFER[6]/10;
ii=disp1*16;jj=disp2*16;
num_led(ii,jj);
P2=0xff;P1=0xff;Delay(60);
}
void display_TZ(void)
{
gate11=key;gate12=!key;
for(jj=0;jj<16;jj++){
P2=0xff;P1=0xff;
Delay(40);
}
for(jj=0;jj<12;jj++){
P2=~HZ_12[jj*2];P1=~HZ_12[1+jj*2];
Delay(40);
P1=0xff;P2=0xff;
}
for(jj=0;jj<12;jj++){
P2=~HZ_12[TZ*24+jj*2];P1=~HZ_12[TZ*24+1+jj*2];
Delay(40);
P1=0xff;P2=0xff;
}
for(jj=0;jj<8;jj++){
P2=~NUM1[160+jj*2];P1=~NUM1[160+1+jj*2];
Delay(40);
P1=0xff;P2=0xff;
}
disp1=BUFFER[TZ+1]/10;
for(jj=0;jj<8;jj++){
P2=~NUM1[disp1*16+jj*2];P1=~NUM1[disp1*16+1+jj*2];
Delay(40);
P2=0xff;P1=0xff;
}
Delay(60);
disp1=BUFFER[TZ+1]-disp1*10;
for(jj=0;jj<8;jj++){
P2=~NUM1[disp1*16+jj*2];P1=~NUM1[disp1*16+1+jj*2];
Delay(40);
P2=0xff;P1=0xff;
}
Delay(60);
}
void intersvr0(void) interrupt 0
{
key=!key;
if(w==0) w=1;
}
void intersvr1(void) interrupt 2
{
TH1=0; TL1=0;
}
void timer1(void) interrupt 3 using 1
{
}
void timer0(void) interrupt 1 using 1
{
TH0=-(5000/256);
TL0=-(5000%256);
TR0=1;
BUFFER[0]=BUFFER[0]+1;
if (BUFFER[6]%4==0) M[1]=M[1]+1;
if (BUFFER[0]>201+xz){
BUFFER[0]=0;
BUFFER[1]=BUFFER[1]+1;
if (BUFFER[1]==60){
BUFFER[1]=0;
BUFFER[2]=BUFFER[2]+1;
if (BUFFER[2]==60){
BUFFER[2]=0;
BUFFER[3]=BUFFER[3]+1;
if (BUFFER[3]==24){
BUFFER[3]=0;
BUFFER[4]=BUFFER[4]+1;
if (BUFFER[4]>M[BUFFER[5]-1]){
BUFFER[4]=1;
BUFFER[5]=BUFFER[5]+1;
if (BUFFER[5]>12){
BUFFER[5]=1;
BUFFER[6]=BUFFER[6]+1;
if(BUFFER[6]>99) {
BUFFER[6]=0;
M[1]=M[1]-1;
}
}
}
}
}
}
}
}
void Jm(void)
{
unsigned int kk,mm;
CM=0x00;
for(kk=0;kk<30;kk++){
mm=0;
while((P3&0x80)==0x00){};
while((P3&0x80)==0x80){mm++;};
if((mm>350)&&(mm<100)){CM=0x00; break;};
yy[kk]=mm;
}
for(kk=17;kk<22;kk++){
CM=CM<<1;
if((yy[kk]>65)&&(yy[kk+8]<65)) {CM=CM|0x01;}
else {if((yy[kk]>65)||(yy[kk+8]<65)) {CM=0x00;break;}
}
}
}
void main(void)
{
xz=8;TZ=1;BZ=0;
key1=0;key2=1;
EA=1;
IT0=1;EX0=1;
EX1=1;
IT1=1;ET0=1;
TMOD=0x11;
TH0=-5000/256; TL0=-5000%256;
TR0=1;
TH1=0; TL1=0;
TR1=1;
for(;;){
w=0;CM=0;
Delay(50);
if(w==2) {EX1=0;Jm();Delay(1200);EX1=1;w=0;};
if(BZ==1) if(w==1) {display_TZ();n=1;}
if(BZ==0) if(w==1) {display_clock();n=1;}
if(CM==9) {BUFFER[1]=0;Delay(1200);BZ=!BZ;w=0;CM=0;}
if(CM==11){Delay(1200);key=!key;w=1;BZ=0;w=0;CM=0;}
if(CM==23) if(BZ==1) {if(BUFFER[TZ+1]<maxnum[TZ-1]) BUFFER[TZ+1]++; else BUFFER[TZ+1]=minnum[TZ-1];Delay(1200);w=0;CM=0;}
if(CM==19) if(BZ==1) {if(BUFFER[TZ+1]>minnum[TZ-1]) BUFFER[TZ+1]--; else BUFFER[TZ+1]=maxnum[TZ-1];Delay(1200);w=0;CM=0;}
if(CM==31) if(BZ==1) {if(TZ<5) TZ++; else TZ=1;Delay(1200);w=0;CM=0;}
if(CM==15) if(BZ==1) {if(TZ>1) TZ--; else TZ=5;Delay(1200);w=0;CM=0;}
n++;if(n>10) w=1;
}
}
正常运行状态