8/18/2019 Code Real time Clock DS1307

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#include //****************************************************************//* Real time Clock DS1307//* Dong ho so su dung DS1307 hien thi tren 6 LED 7-segment hh.mm.ss//* Sofware: Compiler CCS Ver 4.018/* Harware: TMe - EasyPIC: (www.tme.com.vn)  - Pull up PORTD, Pull-down Switches, connect PORTD to Switches  - Switches: T1 - Mode, T2 - set time, T3 - clean status  - DIP Swich SW2 all ON (Enable 7-segment and RTC DS1307)*****************************************************************/

#include #include //file header do nguoi dung dinh nghia#include #fuses HS,NOWDT,NOPROTECT,NOLVP#use delay(clock=4000000)

byte sec,min,hour;byte const MAP[10] = {0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90};//0-9 Cathodebyte DIS1,DIS2,DIS3,DIS4,DIS5,DIS6;byte key,mode;int1 ampm,blink,blink_sec,blink_min,blink_hour;int1 on_off;

int16 count;

#bit SW1 = 0x6.0 // B0 - mode#bit SW2 = 0x6.1 // B1 - set_time#bit SW3 = 0x6.2 // B2 - Clear_status

void set_blink();void change_time();void update_1307();void keyscan();void set_sec();void set_min();void set_hour();

void clear_status();void read_time();void update_time();void display();

//===============================================

void main(){void set_blink(){

  switch (mode)  {  case 1: blink_sec=1; break;  case 2: {blink_min=1;blink_sec=0;} break;  case 3: {blink_hour=1;blink_min=0;} break;  case 4:  {  blink=0;mode = 0;blink_sec=0;  blink_min=0;blink_hour=0;

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  }  break;  }}

void change_time(){ //Ham chon che do, giong nhu o dong ho CASIO, nhan 1 lan laphut, 2 lan la gio....

  if(mode == 1) {blink_sec=1;set_sec();}  if(mode == 2) {blink_min=1;set_min();}  if(mode == 3) {blink_hour=1;set_hour();}  if(mode == 4)  {  blink=0;mode = 0;  blink_sec=0; blink_min=0; blink_hour=0;  }}

void update_1307(){  write_DS1307(0,sec);  write_DS1307(1,min); // bit_set(hour,6);

 // if (ampm == 0) {bit_clear(hour,5); write_DS1307(2,hour);} // AM // if (ampm == 1) {bit_set (hour,5); write_DS1307(2,hour);} // PM }void keyscan() {  RB0=1;RB1=1;RB2=1;  //TRISB=0xE0;  if(SW1 != 1) { key=0;SW1=1;delay_ms(150);}  if(SW2 != 1) { key=1;SW2=1;delay_ms(150);}  if(SW3 != 1) { key=2;SW3=1;delay_ms(150);}  if(key != 5)  {  switch (key)

  {  case 0: {mode++;key = 5;blink=1;set_blink();}  break;  case 1: {change_time();key = 5;update_1307();}  break;  case 2: {clear_status();key = 5;}  break;

}  }}

void set_sec(){

  sec=read_ds1307(0);  if (sec>=0x30) {sec=0; min++; write_ds1307(1,min);}  else sec=0;  write_ds1307(0,sec);}void set_min(){ byte j; 

min=read_ds1307(1);  min++;

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  j=min & 0x0F;  if (j>=0x0A) min=min+0x06;  if (min>=0x60) min=0;  write_ds1307(1,min);}void set_hour(){

hour= hour & 0x1F;  hour++;  if(hour== 0x0a) hour = hour+0x06;  write_ds1307(2,hour); // if(hour == 0x13) // { hour = 0x00;  // if (ampm == 0) ampm = 1;  // else ampm = 0;  // }}

void clear_status() {

 mode=4; set_blink();}void read_time(){

  sec = read_DS1307(0);  min = read_DS1307(1);  hour = read_DS1307(2);  update_time();}

void update_time(){ 

ampm = bit_test(hour,5); //test AM PM  //if(ampm == 0) {RC6 = 0;RC7=1;} //AM  //if(ampm == 1) {RC6 = 1;RC7=0;} // PM  DIS1= sec & 0x0F;

  DIS2=(sec & 0xF0)>>4; //convert to BCD SEC  DIS3= min & 0x0F;  DIS4=(min & 0xF0)>>4; //convert to BCD MIN  DIS5= hour & 0x0F;  DIS6=(hour & 0x10)>>4; //convert to BCD HOUR }void display() {TRISD=0x00;TRISA=0x00;  if(blink==0) goto norm;  if(on_off==0) goto led_blink;norm:// sec - min - hour

  PortD=MAP[DIS1]; RA5=0;//DIS1  delay_ms(1); RA5=1;  PortD=MAP[DIS2]; RA4=0; //DIS2  delay_ms(1); RA4=1;  PortD=MAP[DIS3];output_low(PIN_D7);RA3=0;//DIS3  delay_ms(1); RA3=1;  PortD=MAP[DIS4]; RA2=0;//DIS4  delay_ms(1); RA2=1;  PortD=MAP[DIS5];output_low(PIN_D7); RA1=0;//DIS5  delay_ms(1); RA1=1;

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  PortD=MAP[DIS6];if (portD==0xC0) RA0=1; else RA0=0;//DIS6  delay_ms(1); RA0=1;//*/ 

if(count!=0) goto exit;  else  {  count=15;  on_off=0;  }  goto exit; led_blink:  PortD=MAP[DIS1];  if (blink_sec==1) RA5=1;//DIS1  else RA5=0;  delay_ms(3); RA5=1;  PortD=MAP[DIS2];  if (blink_sec==1) RA4=1;//DIS2  else RA4=0;  delay_ms(3); RA4=1;  PortD=MAP[DIS3];output_low(PIN_D7);  if(blink_min==1) RA3=1;//DIS3  else RA3=0;//DIS3  delay_ms(3); RA3=1;

  PortD=MAP[DIS4];  if(blink_min==1) RA2=1;//DIS4  else RA2=0;//DIS4  delay_ms(3); RA2=1;  PortD=MAP[DIS5];output_low(PIN_D7);  if(blink_hour==1) RA1=1;//DIS5  else RA1=0;//DIS5  delay_ms(3); RA1=1;  PortD=MAP[DIS6];  if(blink_hour==1) RA0=1;//DIS6  else {if (portD==0xC0) RA0=1; else RA0=0;}//DIS6  delay_ms(3); RA0=1;//*/  if(count==0) {count=15;on_off=1;}

 exit:  count--;}void main() {byte u; Delay_ms(5); TrisC = 0x00; TrisD = 0x00;//output Trisa = 0x00; TrisB = 0x00; // RC6=1;RC7=1; init_ds1307();

 u=read_ds1307(0); sec=u & 0x7F;// enable RTC write_ds1307(0,sec);// set second to 00 and enable clock(bit7=0)

//Xoa tat ca cac co dieu khien key=5;mode=0;blink=0; blink_sec=0;blink_min=0;blink_hour=0; count=15;on_off=1;  // ampm = bit_test(hour,5);// test AM_PM 

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while(true){

  read_time();  display();  keyscan();  }}//end of main program

}