Difference between revisions of "RTC"

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{{#Widget:LibTable}}
 
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|Defination || This function is used to Initialize the Ds1307 RTC.
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|Defination ||<syntaxhighlight  lang = "c"> void RTC_Init()</syntaxhighlight>
 
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| Input Arguments || none
 
| Input Arguments || none
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| Description || This function is used to Initialize the Ds1307 RTC.  
 
| Description || This function is used to Initialize the Ds1307 RTC.  
 
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| Usage ||RTC_Init();
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| Usage ||<syntaxhighlight  lang = "c"> RTC_Init();</syntaxhighlight>
 
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Note: The I/P arguments should of BCD,<br />like 0x12,0x39,0x26 for 12hr,39min and 26sec.
 
Note: The I/P arguments should of BCD,<br />like 0x12,0x39,0x26 for 12hr,39min and 26sec.
 
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| Usage || RTC_SetTime(0x10,0x40,0x20); //All the arguments should be in BCD format
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| Usage ||<syntaxhighlight  lang = "c">RTC_SetTime(0x10,0x40,0x20); //All the arguments should be in BCD format</syntaxhighlight>
 
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Note: The I/P arguments should of BCD.<br />Like 0x15,0x08,0x47 for 15th day,8th month and 47th year.
 
Note: The I/P arguments should of BCD.<br />Like 0x15,0x08,0x47 for 15th day,8th month and 47th year.
 
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| Usage || RTC_SetDate(0x15,0x08,0x47); //All arguments should be in BCD format.
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| Usage ||<syntaxhighlight  lang = "c">RTC_SetDate(0x15,0x08,0x47); //All arguments should be in BCD format.</syntaxhighlight>
 
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Revision as of 11:23, 10 January 2015

RTC

RTC_Init

{{#Widget:LibTable}}
Defination 
  1.  void RTC_Init()
Input Arguments none
Return Value none
Description This function is used to Initialize the Ds1307 RTC.
Usage 
  1.  RTC_Init();



RTC_SetTime

{{#Widget:LibTable}}
Defination 
  1.  void RTC_SetTime(uint8_t var_hour_u8, uint8_t var_min_u8, uint8_t var_sec_u8)
Input Arguments 
  1. uint8_t: Hour (0x00-0x23) BCD format
  2. uint8_t: Minute (0x00-0x59) BCD format
  3. uint8_t: Second (0x00-0x59) BCD format
Return Value none
Description This function is used to update the Time(hh,mm,ss) of Ds1307 RTC.
The new time is updated into the non volatile memory of Ds1307.

Note: The I/P arguments should of BCD,
like 0x12,0x39,0x26 for 12hr,39min and 26sec.

Usage 
  1. RTC_SetTime(0x10,0x40,0x20); //All the arguments should be in BCD format



RTC_SetDate

{{#Widget:LibTable}}
Defination 
  1.  void RTC_SetDate(uint8_t var_day_u8, uint8_t var_month_u8, uint8_t var_year_u8)
Input Arguments 
  1. uint8_t: Day(0x01-0x31) BCD format
  2. uint8_t: Month(0x01-12) BCD format
  3. uint8_t: Year(0x00-0x99) BCD format
Return Value none
Description This function is used to set Date(dd,mm,yy) into the Ds1307 RTC.
The new Date is updated into the non volatile memory of Ds1307.

Note: The I/P arguments should of BCD.
Like 0x15,0x08,0x47 for 15th day,8th month and 47th year.

Usage 
  1. RTC_SetDate(0x15,0x08,0x47); //All arguments should be in BCD format.



RTC_GetTime

{{#Widget:LibTable}}
Defination 
  1. void RTC_GetTime(uint8_t *ptr_hour_u8,uint8_t *ptr_min_u8,uint8_t *ptr_sec_u8)
Input Arguments 
  1. uint8_t *: Address to copy Hour.
  2. uint8_t *: Address to copy Minute.
  3. uint8_t *: Address to copy Second.
Return Value none
Description This function is used to get the Time(hh,mm,ss) from Ds1307 RTC.

Note: The time read from Ds1307 will be of BCD format,
like 0x12,0x39,0x26 for 12hr,39min and 26sec.

Usage 
  1.  uint8_t hour,min,sec;
  2. RTC_GetTime(&hour,&min&sec); //Now the hour,min,sec with have the time in BCD format.



RTC_GetDate

{{#Widget:LibTable}}
Defination 
  1. void RTC_GetDate(uint8_t *ptr_day_u8,uint8_t *ptr_month_u8,uint8_t *ptr_year_u8)
Input Arguments 
  1. uint8_t * : Address to copy Day.
  2. uint8_t * : Address to copy Month.
  3. uint8_t * : Address to copy Year.
Return Value none
Description This function is used to get the Date(d,m,y) from Ds1307 RTC.

Note: The date read from Ds1307 will be of BCD format,
like 0x15,0x08,0x47 for 15th day,8th month and 47th year.

Usage 
  1.  uint8_t hour,min,year;
  2. RTC_GetDate(&hour,&min&year); //Now the hour,min,year with have the Date in BCD format.


User Guide

Retrieved from "https://exploreembedded.com/wiki/index.php?title=RTC&oldid=4277"