Hola, Jonathan Y compania, gracias por el codigo para hacer el reloj, queria preguntarte como podemos añadir seis alarmas es decir alas 4:00 , 9:00 , 14:30 , 18:10 , 21:20 , 23:25.
el codigo es el que me diste tan solo lo he modificado para mostrar tambien dia mes y año, ¿SABRIAS DECIRME COMO AÑADIR DICHAS ALARMAS?
////////////////////////////////////////////////////////////////////////////////////////////////////
////////////ESTE PROGRAMA UTILZA EL CIRCUITO DS1307 PARA MOSTRAR LA //////////////
//////////HORA EN TIEMPO REAL A TRAVEZ DE UN UNA LCD DE 2 POR 16 CARACTERES/////
///////////////////////////////////////////////////////////////////////////////////////////////////
#include <16F877A.h> /// libreria para el manejo del pic16f877a
#use delay(clock=8000000) /// declara la frecuencia del cristal
#fuses HS,NOWDT,NOPUT,NOLVP,NOBROWNOUT,NOWRT,NOPROTECT
#include <lcd.c>
#use fast_io(A)
#use fast_io(
#use fast_io(C) /// con esta instruccion evitamos que
#use fast_io(D) /// se este configurando cada vez que usamos
#use fast_io(E) /// alguna instruccion de entrada o salida
#byte portc = 7 /// se definen direcciones de memoria
#byte portd = 8
#define RTC_SDA PIN_C4
#define RTC_SCL PIN_C3
#use i2c(master, sda=RTC_SDA, scl=RTC_SCL, SLOW)
int sec;
int min;
int hrs;
int day;
int month;
int yr;
int dow;
///////////////////////////////////////////////////////////////////////////////////
//////////////////////Comienzo de la funcion principal//////////////////////////
///////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
/// DS1307.C ///
/// Driver for Real Time Clock ///
/// ///
/// ds1307_init() - Enable oscillator without clearing the seconds register -///
/// used when PIC loses power and DS1307 run from 3V BAT ///
/// - Disable squarewave output ///
/// ///
/// ds1307_set_date_time(day,mth,year,dow,hour,min,sec) Set the date/time ///
/// ///
/// ds1307_get_date(day,mth,year,dow) Get the date ///
/// ///
/// ds1307_get_time(hr,min,sec) Get the time ///
/// ///
////////////////////////////////////////////////////////////////////////////////
#define RTC_SDA PIN_C4
#define RTC_SCL PIN_C3
#use i2c(master, sda=RTC_SDA, scl=RTC_SCL, SLOW)
BYTE bin2bcd(BYTE binary_value);
BYTE bcd2bin(BYTE bcd_value);
void ds1307_init(void)
{
BYTE seconds = 0;
i2c_start();
i2c_write(0xD0); // SELECCIONA RTC CON ORDEN WR
i2c_write(0x00); // REG 0
i2c_start();
i2c_write(0xD1); // RD from RTC
seconds = bcd2bin(i2c_read(0)); // Read current "seconds" in DS1307
i2c_stop();
seconds = bin2bcd(seconds & 0x7F);
delay_us(3);
i2c_start();
i2c_write(0xD0); // WR to RTC
i2c_write(0x00); // REG 0
i2c_write(seconds); // Start oscillator with current "seconds value
i2c_start();
i2c_write(0xD0); // WR to RTC
i2c_write(0x07); // Control Register
// i2c_write(0x80); // Disable squarewave output pin
i2c_write(0x10); // Disable squarewave output pin
i2c_stop();
}
void ds1307_OUT(void){
i2c_start();
i2c_write(0xD0); // WR to RTC
i2c_write(0x07); // WR to RTC
i2c_write(0x10); // Enable squarewave output pin
i2c_stop();
}
void ds1307_set_date_time(BYTE day, BYTE mth, BYTE year, BYTE dow, BYTE hr, BYTE min, BYTE sec)
{
sec &= 0x7F;
hr &= 0x3F;
i2c_start();
i2c_write(0xD0); // I2C write address
i2c_write(0x00); // Start at REG 0 - Seconds
i2c_write(bin2bcd(sec)); // REG 0
i2c_write(bin2bcd(min)); // REG 1
i2c_write(bin2bcd(hr)); // REG 2
i2c_write(bin2bcd(dow)); // REG 3
i2c_write(bin2bcd(day)); // REG 4
i2c_write(bin2bcd(mth)); // REG 5
i2c_write(bin2bcd(year)); // REG 6
//i2c_write(0x80); // REG 7 - Disable squarewave output pin
i2c_write(0x10); // Enable squarewave output pin
i2c_stop();
}
void ds1307_get_date(BYTE &day, BYTE &mth, BYTE &year, BYTE &dow)
{
i2c_start();
i2c_write(0xD0);
i2c_write(0x03); // Start at REG 3 - Day of week
i2c_start();
i2c_write(0xD1);
dow = bcd2bin(i2c_read() & 0x7f); // REG 3
day = bcd2bin(i2c_read() & 0x3f); // REG 4
mth = bcd2bin(i2c_read() & 0x1f); // REG 5
year = bcd2bin(i2c_read(0)); // REG 6
i2c_stop();
}
void ds1307_get_time(BYTE &hr, BYTE &min, BYTE &sec)
{
i2c_start();
i2c_write(0xD0);
i2c_write(0x00); // Start at REG 0 - Seconds
i2c_start();
i2c_write(0xD1);
sec = bcd2bin(i2c_read() & 0x7f);
min = bcd2bin(i2c_read() & 0x7f);
hr = bcd2bin(i2c_read(0) & 0x3f);
i2c_stop();
}
BYTE bin2bcd(BYTE binary_value)
{
BYTE temp;
BYTE retval;
temp = binary_value;
retval = 0;
while(1)
{
// Get the tens digit by doing multiple subtraction
// of 10 from the binary value.
if(temp >= 10)
{
temp -= 10;
retval += 0x10;
}
else // Get the ones digit by adding the remainder.
{
retval += temp;
break;
}
}
return(retval);
}
// Input range - 00 to 99.
BYTE bcd2bin(BYTE bcd_value)
{
BYTE temp;
temp = bcd_value;
// Shifting upper digit right by 1 is same as multiplying by 8.
temp >>= 1;
// Isolate the bits for the upper digit.
temp &= 0x78;
// Now return: (Tens * 8) + (Tens * 2) + Ones
return(temp + (temp >> 2) + (bcd_value & 0x0f));
}
void main(){
ds1307_init (); ///se inicializa el ds1307
set_tris_a (0xff) ;
set_tris_d (0x00) ;
set_tris_b (0x00) ;
set_tris_c (0x04) ;
set_tris_e (0x01) ;
port_b_pullups (true) ;
lcd_init (); /// inicializamos lcd
// Set date FOR - > 15 June 2005 Tuesday
// Set time FOR - > 15:20:55 (9:49:00 am)
ds1307_set_date_time (8, 11, 7, 2, 19, 05, 00); /// se escribe en el displositivo
/// el tiempo deseado
WHILE (1){
delay_ms (100) ;
ds1307_get_date (day, month, yr, dow); /// se obtiene la fecha
ds1307_get_time (hrs, min, sec); /// se obtiene la hora
lcd_gotoxy (1, 2) ;
printf (lcd_putc, " %02d: %02d: %02d ", hrs,min,sec);///se despliegan los datos
lcd_gotoxy (1, 1) ;
printf (lcd_putc, " %02d: %02d: %02d ", day,month,yr);
}
}
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