các bác giúp e cái code đồng hồ led ma trận này với,

[codientu95]

#include <REGX52.H>
sbit DATA1 = P3^0;
sbit SCK1 = P3^1;
sbit LACH1 = P3^2;
sbit set=P3^4;
sbit up=P3^5;
sbit down=P3^6;
void delay(unsigned char t)
{
unsigned char x;
unsigned int y;
for(x=0;x<t;x++)
{
for(y=0;y<100;y++);
}
}
unsigned char hour, minute, second,c;
unsigned char code max0[]={
0xff,0xFF,0x81,0x7A,0x76,0x6E,0x81,0xFF,
0xff,0xFF,0x7B,0x7D,0x00,0x7F,0x7F,0xFF,
0xff,0xFF,0x3D,0x5E,0x6E,0x76,0x79,0xFF,
0xff,0xFF,0xBD,0x7E,0x6E,0x66,0x99,0xFF,
0xff,0xEF,0xE7,0xEB,0xED,0x00,0xEF,0xFF,
0xff,0xFF,0xB0,0x76,0x76,0x76,0x8E,0xFF,
0xff,0xFF,0x81,0x6E,0x76,0x76,0x8D,0xFF,
0xff,0xFF,0xFE,0x0E,0xF6,0xFA,0xFC,0xFF,
0xff,0xFF,0x89,0x76,0x76,0x76,0x89,0xFF,
0xff,0xFF,0xB1,0x6E,0x6E,0x76,0x81,0xFF };
unsigned char code ma0x[]={ 0xff,0xff,0xff,0x81,0x7A,0x76,0x6E,0x81,
0xff,0xff,0xff,0x7b,0x7D,0x00,0x7F,0x7F,
0xff,0xff,0xff,0x39,0x5E,0x6E,0x76,0x79,
0xff,0xff,0xff,0xBD,0x7E,0x6E,0x66,0x99,
0xff,0xff,0xEF,0xE7,0xEB,0xED,0x00,0xEF,
0xff,0xff,0xff,0xB0,0x76,0x76,0x76,0x8E,
0xff,0xff,0xff,0x81,0x6E,0x76,0x76,0x8D,
0xff,0xff,0xff,0xFE,0x0E,0xF6,0xFA,0xFC,
0xff,0xff,0xff,0x89,0x76,0x76,0x76,0x89,
0xff,0xff,0xff,0xB1,0x6E,0x6E,0x76,0x81 };
unsigned char code magiay[]={
0xFF,0x07,0x77,0x07,0xFF,0x07,0x77,0x07,
0xFF,0x07,0x77,0x07,0xFF,0x07,0xFF,0xFF,
0xFF,0x07,0x77,0x07,0xFF,0x17,0x57,0x47,
0xFF,0x07,0x77,0x07,0xFF,0x57,0x57,0x07,
0xFF,0x07,0x77,0x07,0xFF,0xC7,0xDF,0x07,
0xFF,0x07,0x77,0x07,0xFF,0x47,0x57,0x17,
0xFF,0x07,0x77,0x07,0xFF,0x07,0x57,0x17,
0xFF,0x07,0x77,0x07,0xFF,0xF7,0xF7,0x07,
0xFF,0x07,0x77,0x07,0xFF,0x07,0x57,0x07,
0xFF,0x07,0x77,0x07,0xFF,0x47,0x57,0x07,
0xFF,0xFF,0xFF,0x07,0xFF,0x07,0x77,0x07,
0xFF,0xFF,0xFF,0x07,0xFF,0x07,0xFF,0xFF,
0xFF,0xFF,0xFF,0x07,0xFF,0x17,0x57,0x47,
0xFF,0xFF,0xFF,0x07,0xFF,0x57,0x57,0x07,
0xFF,0xFF,0xFF,0x07,0xFF,0xC7,0xDF,0x07,
0xFF,0xFF,0xFF,0x07,0xFF,0x47,0x57,0x17,
0xFF,0xFF,0xFF,0x07,0xFF,0x07,0x57,0x17,
0xFF,0xFF,0xFF,0x07,0xFF,0xF7,0xF7,0x07,
0xFF,0xFF,0xFF,0x07,0xFF,0x07,0x57,0x07,
0xFF,0xFF,0xFF,0x07,0xFF,0x47,0x57,0x07,
0xFF,0x17,0x57,0x47,0xFF,0x07,0x77,0x07 ,
0xFF,0x17,0x57,0x47,0xFF,0x07,0xFF,0xFF,
0xFF,0x17,0x57,0x47,0xFF,0x17,0x57,0x47,
0xFF,0x17,0x57,0x47,0xFF,0x57,0x57,0x07,
0xFF,0x17,0x57,0x47,0xFF,0xC7,0xDF,0x07,
0xFF,0x17,0x57,0x47,0xFF,0x47,0x57,0x17,
0xFF,0x17,0x57,0x47,0xFF,0x07,0x57,0x17,
0xFF,0x17,0x57,0x47,0xFF,0xF7,0xF7,0x07,
0xFF,0x17,0x57,0x47,0xFF,0x07,0x57,0x07,
0xFF,0x17,0x57,0x47,0xFF,0x47,0x57,0x07 ,
0xFF,0x57,0x57,0x07,0xFF,0x07,0x77,0x07 ,
0xFF,0x57,0x57,0x07,0xFF,0x07,0xFF,0xFF ,
0xFF,0x57,0x57,0x07,0xFF,0x17,0x57,0x47 ,
0xFF,0x57,0x57,0x07,0xFF,0x57,0x57,0x07 ,
0xFF,0x57,0x57,0x07,0xFF,0xC7,0xDF,0x07 ,
0xFF,0x57,0x57,0x07,0xFF,0x47,0x57,0x17 ,
0xFF,0x57,0x57,0x07,0xFF,0x07,0x57,0x17 ,
0xFF,0x57,0x57,0x07,0xFF,0xF7,0xF7,0x07 ,
0xFF,0x57,0x57,0x07,0xFF,0x07,0x57,0x07 ,
0xFF,0x57,0x57,0x07,0xFF,0x47,0x57,0x07 ,
0xFF,0xC7,0xDF,0x07,0xFF,0x07,0x77,0x07 ,
0xFF,0xC7,0xDF,0x07,0xFF,0x07,0xFF,0xFF ,
0xFF,0xC7,0xDF,0x07,0xFF,0x17,0x57,0x47 ,
0xFF,0xC7,0xDF,0x07,0xFF,0x57,0x57,0x07 ,
0xFF,0xC7,0xDF,0x07,0xFF,0xC7,0xDF,0x07 ,
0xFF,0xC7,0xDF,0x07,0xFF,0x47,0x57,0x17 ,
0xFF,0xC7,0xDF,0x07,0xFF,0x07,0x57,0x17 ,
0xFF,0xC7,0xDF,0x07,0xFF,0xF7,0xF7,0x07 ,
0xFF,0xC7,0xDF,0x07,0xFF,0x07,0x57,0x07 ,
0xFF,0x47,0x57,0x17,0xFF,0x07,0x77,0x07 ,
0xFF,0x47,0x57,0x17,0xFF,0x07,0xFF,0xFF ,
0xFF,0x47,0x57,0x17,0xFF,0x17,0x57,0x47,
0xFF,0x47,0x57,0x17,0xFF,0x57,0x57,0x07,
0xFF,0x47,0x57,0x17,0xFF,0xC7,0xDF,0x07 ,
0xFF,0x47,0x57,0x17,0xFF,0x47,0x57,0x17,
0xFF,0x47,0x57,0x17,0xFF,0x07,0x57,0x17,
0xFF,0x47,0x57,0x17,0xFF,0xF7,0xF7,0x07,
0xFF,0x47,0x57,0x17,0xFF,0x07,0x57,0x07,
0xFF,0x47,0x57,0x17,0xFF,0x47,0x57,0x07 };
unsigned char cot[]={0x01,0x02,0x04,0x08,0x10,0x2,0x40,0x80};
unsigned char kt=0,a=0,i,k,x=0;
bit set0=1,set1=1,up1=1,up0=1,down0=1,down1=1;
sbit SCL = P1^0;
sbit SDA = P1^1;


//-----------------------------------------
void SCL_high(){
SCL = 1;
delay(1);
}

//------------------------------------------
void SCL_low(){
SCL = 0;
delay(1);
}

//-------------------------------------------
void I2C_Start(){
SDA = 1;
SCL = 1;
SDA = 0;
delay(1);
SCL = 0;
SDA = 1;
}

//--------------------------------------------
void I2C_Stop(){
SDA = 0;
SCL_high();
SDA = 1;
}

//----------------------------------------------
bit I2C_Write(unsigned char dat){
unsigned char i;
bit outbit;
for (i = 1; i <= 8; i++){
outbit=dat&0x80;
SDA = outbit;
dat = dat << 1;
SCL_high();
SCL_low();
}
SDA = 1;
SCL_high();
outbit = SDA;
SCL_low();
return(outbit);
}

//----------------------------------------------------
unsigned char I2C_Read(bit ack){
unsigned char i, dat;
bit inbit;

dat = 0;
for(i=1;i<=8;i++) {
SCL_high();
inbit = SDA;
dat = dat << 1;
dat = dat | inbit;
SCL_low();
}
if (ack) SDA = 0;
else SDA = 1;
SCL_high();
SCL = 0;
SDA = 1;
delay(1);
return(dat);
}

//-------------------------------------------------------------
void rtc_write(unsigned char add, unsigned char dat){
I2C_Start();
I2C_Write(0xd0);
I2C_Write(add);
I2C_Write(((dat/10)<<4)|(dat%10));
I2C_Stop();
}

unsigned char rtc_read(unsigned char add){
unsigned char dat;
I2C_Start();
I2C_Write(0xd0);
I2C_Write(add);
I2C_Start();
I2C_Write(0xd1);
dat = I2C_Read(0);
I2C_Stop();
dat = (dat & 0x0f) + (dat>>4)*10;
return (dat);
}
void writeds(){
rtc_write(0x00, second);
rtc_write(0x01, minute);
rtc_write(0x02, hour);
}

void readds()
{
if(kt==0)
{
if(a==1)
{writeds();a=0;
}
second = rtc_read(0x00);
minute = rtc_read(0x01);
hour = rtc_read(0x02);
}
}

void hienthi(unsigned char x)
{
unsigned int i,temp;
for(i=0;i<8;i++)
{
temp=x;
temp=temp&0x80;
if(temp==0x80)
DATA1=1;
else
DATA1=0;
x*=2;
SCK1=0;
SCK1=1;
}
}
void quetled()
{

if(kt==0)
{
for(i=0;i<8;i++){
P2=cot[i];
hienthi(magiay[second]);
hienthi(ma0x[minute%10]);
hienthi(max0[minute/10]);
hienthi(ma0x[hour%10]);
hienthi(max0[hour/10]);
LACH1=0;
LACH1=1;
delay(3);
}}
if(kt==1)
{for(i=0;i<8;i++){
P2=cot[i];
hienthi(0xff);
hienthi(0xff);
hienthi(0xff);
hienthi(ma0x[hour%10]);
hienthi(max0[hour/10]);
LACH1=0;
LACH1=1;

delay(3);
}
}
if(kt==2)
{ for(i=0;i<8;i++){
P2=cot[i];

hienthi(0xff);
hienthi(ma0x[minute%10]);
hienthi(max0[minute/10]);
hienthi(0xff);
hienthi(0xff);
LACH1=0;
LACH1=1;

delay(3);
}
}
if(kt==3)
{
for(i=0;i<8;i++){
P2=cot[i];
hienthi(magiay[second/1]);
hienthi(0xff);
hienthi(0xff);
hienthi(0xff);
hienthi(0xff);
LACH1=0;
LACH1=1;

delay(3);
}
}
}
void ktphim()
{
set0=set1;set1=set;
if((set0==1)&&(set1==0))
{
kt++;
if(kt>3)kt=0;
}
switch(kt)
{
case 0:break;
case 1:
{
up0=up1;up1=up; a=1;
if((up0==1)&&(up1==0))
{
hour++;
if(hour>23)hour=0;
}
down0=down1;down1=down;
if((down0==1)&&(down1==0))
{
hour--;
if(hour==-1)
hour=23;
}
break;
}
case 2:
{
up0=up1;up1=up; a=1;
if((up0==1)&&(up1==0))
{
minute++;
if(minute>59)
minute=0;
}
down0=down1;down1=down;
if((down0==1)&&(down1==0))
{
minute--;
if(minute==-1)
minute=59;
}
break;
}

case 3:
{
up0=up1;up1=up;a=1;
if((up0==1)&&(up1==0))
{
second++;
if(second>59)
second++;
}
down0=down1;down1=down;
if((down0==1)&&(down1==0))
{
second=0;
}
break;
}
}
}

void main()
{
I2C_Start();
I2C_Write(0xD0);
I2C_Write(0x07);
I2C_Write(0x10);
I2C_Stop();
while(1)
{
ktphim();
readds();
quetled();
}
}

[themen9999]

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