MẠch chuÔng bÁo tiẾt hỌc cÁc bẠn giÚp mÌnh vỚi !!!

[thaianhtaivn]

CÁC BẠN XEM SỬ DÙM MÌNH CODE Với
khi mô phỏng mạch chạy thì 2 chân SDL và SDA của ds 1307 luôn ở mức cao ,theo mình được biết thì khi 2 chân này ở mức cao thì nó chưa giao tiếp.. nhưng mô phỏng vẫn chạy bình thường ... nhưng làm mạch thật thì LED chỉ hiện 88888...
code:
//DONG HO SU DUNG TIMER BLOG DIEN TU - TIN HOC EDIT By ChipKool.net
//PHAN CUNG: 89c51; THACH ANH: 12MHZ ;
//SU DUNG 6 LED 7 DOAN GIO : PHUT : GIAY

/************KHAI BAO THU VIEN, DINH NGHIA********************************************* ***********/
#include<AT89X52.H>

#define Set_key P3_4
#define Up_key P3_5
#define Dw_key P3_6
#define SDA P1_1
#define SCL P1_0
#define DS1307_ID 0xD0
#define SEC 0x00
#define MIN 0x01
#define HOUR 0x02
#define L1 P3_1
#define L2 P3_7



/************KHAI BAO BIEN, MANG...******************************************* ********************/
unsigned char led7_data[10] = {0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90 }; //Decimal to Led7seg
unsigned char t_view,time,index,F_set,B_nhay,get_t ;
unsigned char hour,sec,min;

/************KHAI BAO HAM, CHUONG TRINH CON*********************************************** ********/
void set_main(void); // Chuong trinh khoi tao main
void setup_timer(void); // Chuong trinh cai dat timer 1 va 0
void delay(unsigned int time); // Delay
void Fix_time(void); // Kiem tra va hieu chinh gia tri cua gio,phut,giay
void Keypad(void); // Kiem tra xu ly phim nhan.
void T1_ISR(void); //ngat timer 1 phuc vu nhay led
void T0_ISR(void); // Dung ngat timer 0 de quet led

/************CAC CHUONG TRINH CON*********************************************** ******************/
// FOR I2C
/************************************************** *********************/

void I2C_start(void)
{
SCL = 1; SCL = 0;
SDA = 1; SCL = 1;
delay(2);
SDA = 0; delay(2);
SCL = 0; delay(2);
}
void I2C_stop(void)
{
SCL = 1; SCL = 0;
SDA = 0; delay(2);
SCL = 1; delay(2);
SDA = 1;
}
bit I2C_write(unsigned char dat)
{
unsigned char i;
for (i=0;i<8;i++)
{
SDA = (dat & 0x80) ? 1:0;
SCL=1;SCL=0;
dat<<=1;
}
SCL = 1; delay(2);
SCL = 0;
}
unsigned char I2C_read(void)
{
bit rd_bit;
unsigned char i, dat;
dat = 0x00;
for(i=0;i<8;i++) /* For loop read data 1 byte */
{
delay(2);
SCL = 1; /* Set SCL */
delay(2);
rd_bit = SDA; /* Keep for check acknowledge */
dat = dat<<1;
dat = dat | rd_bit; /* Keep bit data in dat */
SCL = 0; /* Clear SCL */
}
return dat;
}
/************************************************** *********************/
// FOR DS1307
/************************************************** *********************/

unsigned char DS1307_get(unsigned char addr)
{
unsigned int temp,ret;
I2C_start(); /* Start i2c bus */
I2C_write(DS1307_ID); /* Connect to DS1307 */
I2C_write(addr); /* Request RAM address on DS1307 */
I2C_start(); /* Start i2c bus */
I2C_write(DS1307_ID+1); /* Connect to DS1307 for Read */
ret = I2C_read(); /* Receive data */
I2C_stop();
//*********************************************
temp = ret; /*BCD to HEX*/
ret = (((ret/16)*10)+ (temp & 0x0f)); /*for Led 7seg*/
//*********************************************
return ret;
}

void DS1307_Write(unsigned char addr,unsigned char dat)
{
unsigned int temp;
//********************************************** /*HEX to BCD*/
temp = dat ; /*for Led 7seg*/
dat = (((dat/10)*16)|(temp %10));
//**********************************************
I2C_start(); /* Start i2c bus */
I2C_write(DS1307_ID); /* Connect to DS1307 */
I2C_write(addr); /* Request RAM address on DS1307 */
I2C_write(dat); /* Connect to DS1307 for Read */
I2C_stop();
}
/************************************************** *********************/

void delay(unsigned int time)
{ while(time--); }
void set_main(void) // Chuong trinh khoi tao main
{
P1=0xFF;
P0=0x00;
P2=0x00;
P3=0x70;
}
void setup_timer(void) // Setup timer 0 va timer 1
{
TMOD=0x11; // timer0 & timer1 set che do 1
TH0=-1000/256; TL0=-1000%256;
TH1=0x3C; TL1=0xAF;
ET1=1; ET0=1; EA=1;
TF0=0; TF1=0; TR0=1; TR1=1;
}
void Fix_time(void) // Kiem tra va hieu chinh gia tri cua gio,phut,giay
{
//Tang
if(sec==60) {sec=0;min++; }
if(min==60) {min=0;hour++; }
if(hour==24) hour=0;
//Giam
if(sec== -1) {sec=59;min--;}
if(min== -1) {min=59;hour-- ;}
if(hour== -1)hour= 23;
}
void Keypad(void) // Kiem tra phim nhan.
{
if(!Set_key){ //phim Set duoc nhan ?
F_set++; // Bien F_set co gia tri tu 0->2
if(F_set==4) {F_set=0;
DS1307_Write(0x02,hour);
DS1307_Write(0x01,min);
DS1307_Write(0x00,sec); }
}
if(F_set==1){ //Tang hoac giam phut neu F_set = 1
if(!Up_key) hour++;
if(!Dw_key) hour--;
}
if(F_set==2){ //Tang hoac giam gio neu F_set = 2
if(!Up_key) min++;
if(!Dw_key) min--;
}
if(F_set==3){ //Tang hoac giam gio neu F_set = 2
if(!Up_key) sec++;
if(!Dw_key) sec--;
}
Fix_time(); //kiem tra tran so
delay(20000);
}
void T1_ISR(void) interrupt 3 //ngat timer 1 chay dong ho
{
TR1=0;
TF1=0;
TH1=0x3C; // nap lai gia tri cho thanh ghi
TL1=0xAF;
time++;
if(time==10)
{time=0; B_nhay++; get_t=1;
if(B_nhay==2)
B_nhay=0;
}
TR1=1;
}
/*************************************/
void T0_ISR(void) interrupt 1 // Dung ngat timer 0 de quet led
{
TR0=0;
TF0=0;
TH0=0xfc;//-1000/256; // Nap lai gia tri cho thanh ghi
TL0=0x18;//-1000%256;
index++;
//giay
if(index==1)
{
if(F_set==3 && B_nhay==1){index++; index++;}
else
{
t_view=sec; //sec;
P2=0xff;
P0=0x20;//00100000
P2=led7_data[t_view%10]; }} //lay so du sau khi chia 10

if(index==2)
{
P2=0xff;
P0=0x10;//00010000
P2=led7_data[t_view/10]; } //xuat gia tri hang chuc
//phut
if(index==3){
if(F_set==2 && B_nhay==1){index++; index++;}
else
{ t_view=min;
P2=0xff;
P0=0x08;//00001000
P2=led7_data[t_view%10]; }}

if(index==4)
{ P2=0xff;
P0=0x04;//00000100
P2=led7_data[t_view/10]; }
//gio
if(index==5) {
if(F_set==1 && B_nhay==1){index=0;}
else
{ t_view=hour;
P2=0xff;
P0=0x02;//00000010
P2=led7_data[t_view%10]; } }

if(index==6)
{ P2=0xff;
P0=0x01;//00000001
P2=led7_data[t_view/10];
index=0; }
TR0=1;
}
/************CHUONG TRINH CHINH********************************************* **********************/
void main()
{
set_main();
time=index=0;
hour=12;
min=30;
sec=30;
F_set=0;
get_t=0;
setup_timer();
while(1)
{
Keypad();

if(F_set==0)
{
if(get_t == 1)
{
get_t = 0;
sec = DS1307_get(SEC);
min = DS1307_get(MIN);
hour = DS1307_get(HOUR);
if((hour==7&&min==0&&sec<=5)||(hour==8&&min==35&&s ec<=5)||(hour==11&&min==20&&sec<=5)||(hour==12&&mi n==30&&sec<=5)||(hour==14&&min==35&&sec<=5)||(hour ==17&&min==0&&sec<=10) )
L1=1;
else L1=0;
if (sec==30||sec==59)
L2=1;
else L2=0;


}
}
}
}

[thaianhtaivn]

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