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ds3231.c
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ds3231.c
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/*
* ds3231.c
*
* Created on: Oct 13, 2021
* Author: saranyan
*/
#include <stdint.h>
#include "general_utility_functions.h"
#include "i2c.h"
#include "ds3231.h"
#define BCD_TO_INT_H(X) (X >> 4)
#define BCD_TO_INT_L(X) (X & 0b00001111)
char date_time[36] = "Date: 00-00-2000 Time: 00:00:00";
char * Get_Date_Time()
{
char string_pointer[2];
//--------------Time-------------//
//------------Seconds------------//
Integer_to_Characters((uint8_t)BCD_TO_INT_L(i2c_data_buffer[0]), string_pointer);
date_time[34] = string_pointer[0];
Integer_to_Characters((uint8_t)BCD_TO_INT_H(i2c_data_buffer[0]), string_pointer);
date_time[33] = string_pointer[0];
//------------Minutes------------//
Integer_to_Characters((uint8_t)BCD_TO_INT_L(i2c_data_buffer[1]), string_pointer);
date_time[31] = string_pointer[0];
Integer_to_Characters((uint8_t)BCD_TO_INT_H(i2c_data_buffer[1]), string_pointer);
date_time[30] = string_pointer[0];
//-------------Hour--------------//
Integer_to_Characters((uint8_t)BCD_TO_INT_L(i2c_data_buffer[2]), string_pointer);
date_time[28] = string_pointer[0];
Integer_to_Characters((uint8_t)(BCD_TO_INT_H(i2c_data_buffer[2]) & 0b00000001), string_pointer);
date_time[27] = string_pointer[0];
//-------------Date--------------//
//--------------Day--------------//
Integer_to_Characters((uint8_t)BCD_TO_INT_L(i2c_data_buffer[4]), string_pointer);
date_time[7] = string_pointer[0];
Integer_to_Characters((uint8_t)(BCD_TO_INT_H(i2c_data_buffer[4]) & 0b00000011), string_pointer);
date_time[6] = string_pointer[0];
//-------------Month-------------//
Integer_to_Characters((uint8_t)BCD_TO_INT_L(i2c_data_buffer[5]), string_pointer);
date_time[10] = string_pointer[0];
Integer_to_Characters((uint8_t)(BCD_TO_INT_H(i2c_data_buffer[5]) & 0b00000001), string_pointer);
date_time[9] = string_pointer[0];
//--------------Year-------------//
Integer_to_Characters((uint8_t)BCD_TO_INT_L(i2c_data_buffer[6]), string_pointer);
date_time[15] = string_pointer[0];
Integer_to_Characters((uint8_t)BCD_TO_INT_H(i2c_data_buffer[6]), string_pointer);
date_time[14] = string_pointer[0];
return date_time;
}