TODOPIC
Microcontroladores PIC => Lenguaje C para microcontroladores PIC => Mensaje iniciado por: asignori en 19 de Agosto de 2011, 13:24:35
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Hola amigos, tengo problemas para grabar los dados de la RTC, el reloj funciona perfectamente, pero no registra el tiempo. ¿Dónde está el error en el programa? Me estoy volviendo loco, porque he intentado varias veces y nada. Muchas Gracias a todos.
Sigue el codigo:
#include <16F877.h>
#FUSES XT,NOWDT,NOPROTECT,PUT,NOLVP
#use delay(clock=4000000)
#use i2c(Master,Slow,sda=PIN_C4,scl=PIN_C3)
#include "lcd.c"
#include "C:\Documents and Settings\Administrador\Desktop\todopic\ds1307.c"
void main()
{
byte sec;
byte min;
byte hrs;
byte day;
byte month;
byte year;
byte dow;
lcd_init(); //initialize lcd
//initialize 1307
ds1307_init();
ds1307_set_date_time(18,12,9,3,10,30,55); //day, month,year,dow,hr,min.sec
while(1)
{
ds1307_get_date(day,month,year,dow);
ds1307_get_time(hrs,min,sec);
lcd_gotoxy(1,1);
printf(lcd_putc,"Data : %02d:%02d:%02d",day,month,year);
lcd_gotoxy(1,2);
printf(lcd_putc,"Time : %02d:%02d:%02d",hrs,min,sec);
if (!input(PIN_c0) ) // controla el puerto C pin0 incrementa horas
{
while(!input(pin_c0)){}
if (hrs>23)
hrs=0;
else hrs++;
i2c_start();
i2c_write(0xD0);
i2c_write(0x02);
i2c_write(bin2bcd(hrs));
i2c_stop();
delay_ms(50);
}
if (!input(PIN_c1) ) // controla el puerto C pin1 incrementa minutos
{
while(!input(pin_c1)){}
if (min>58)
min=0;
else min++;
i2c_start();
i2c_write(0xD0);
i2c_write(0x01);
i2c_write(bin2bcd(min));
i2c_stop();
delay_ms(50);
}
}
}
Sigue la libreria:
//#define RTC_SDA PIN_C4
//#define RTC_SCL PIN_C3
//#use i2c(master, sda=RTC_SDA, scl=RTC_SCL)
//BYTE bin2bcd(BYTE binary_value);
//BYTE bcd2bin(BYTE bcd_value);
int8 bin2bcd(int8 binary_value)
{
int8 temp;
char 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.
char bcd2bin(char bcd_value)
{
char 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 ds1307_init(void)
{
BYTE seconds = 0;
i2c_start();
i2c_write(0xD0); // WR to RTC
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 &= 0x7F;
delay_us(3);
i2c_start();
i2c_write(0xD0); // WR to RTC
i2c_write(0x00); // REG 0
i2c_write(bin2bcd(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_stop();
}
void ds1307_set_date_time(BYTE day, int8 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_stop();
}
void ds1307_set_time(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(0x80); // REG 7 - Disable squarewave output pin
i2c_stop();
}
void ds1307_set_date(byte day, byte mth, byte year, byte dow)
{
i2c_start();
i2c_write(0xD0); // I2C write address
i2c_write(0x03); // Start at REG 0 - Seconds
i2c_write(bin2bcd(dow));
i2c_write(bin2bcd(day));
i2c_write(bin2bcd(mth));
i2c_write(bin2bcd(year));
i2c_write(0x80); // REG 7 - Disable 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();
}
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problema resuelto
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¿Y que era?
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¿Y que era?
Biblioteca equivocada :?
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jaja cosas que pasan...a parte en esta biblioteca que mostraste, habian 2 funciones "ds1307_set_date_time" a lo mejor creaba algun conflicto
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¿Y que era?
Biblioteca equivocada :?
Como dijo Francirius, son cosas que pasan.
Gracias