Difference between revisions of "RTC"

Line 33: Line 33:
 
uint8_t: Second (0x00-0x59) BCD format</syntaxhighlight>
 
uint8_t: Second (0x00-0x59) BCD format</syntaxhighlight>
 
|-
 
|-
−
| Return Value||  
+
| Return Value|| none
 
|-
 
|-
 
| Description || This function is used to update the Time(hh,mm,ss) of Ds1307 RTC.<br />The new time is updated into the non volatile memory of Ds1307.<br />
 
| Description || This function is used to update the Time(hh,mm,ss) of Ds1307 RTC.<br />The new time is updated into the non volatile memory of Ds1307.<br />
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| Usage || RTC_SetTime(0x10,0x40,0x20); //All the arguments should be in BCD format
 
| Usage || RTC_SetTime(0x10,0x40,0x20); //All the arguments should be in BCD format
 
|}
 
|}
 +
 +
 +
 +
  
 
==RTC_SetDate==
 
==RTC_SetDate==
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{{#Widget:LibTable}}
 
{{#Widget:LibTable}}
 
|-
 
|-
−
|Defination ||  
+
|Defination ||<syntaxhighlight  lang = "c"> void RTC_SetDate(uint8_t var_day_u8, uint8_t var_month_u8, uint8_t var_year_u8)</syntaxhighlight>
 
|-
 
|-
−
| Input Arguments ||  
+
| Input Arguments ||<syntaxhighlight  lang = "c">uint8_t: Day(0x01-0x31) BCD format
 +
uint8_t: Month(0x01-12) BCD format
 +
uint8_t: Year(0x00-0x99) BCD format</syntaxhighlight>
 
|-
 
|-
−
| Return Value||  
+
| Return Value|| none
 
|-
 
|-
−
| Description ||  
+
| Description || This function is used to set Date(dd,mm,yy) into the Ds1307 RTC.<br />The new Date is updated into the non volatile memory of Ds1307.<br />
 +
Note: The I/P arguments should of BCD.<br />Like 0x15,0x08,0x47 for 15th day,8th month and 47th year.
 
|-
 
|-
−
| Usage ||  
+
| Usage || RTC_SetDate(0x15,0x08,0x47); //All arguments should be in BCD format.
 
|}
 
|}
 +
  
  
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{{#Widget:LibTable}}
 
{{#Widget:LibTable}}
 
|-
 
|-
−
|Defination ||  
+
|Defination ||<syntaxhighlight  lang = "c">void RTC_GetTime(uint8_t *ptr_hour_u8,uint8_t *ptr_min_u8,uint8_t *ptr_sec_u8)</syntaxhighlight>
 
|-
 
|-
−
| Input Arguments ||  
+
| Input Arguments || <syntaxhighlight  lang = "c">uint8_t *: Address to copy Hour.
 +
uint8_t *: Address to copy Minute.
 +
uint8_t *: Address to copy Second.</syntaxhighlight>
 
|-
 
|-
−
| Return Value||  
+
| Return Value|| none
 
|-
 
|-
−
| Description ||   
+
| Description || This function is used to get the Time(hh,mm,ss) from Ds1307 RTC.<br />
 +
Note: The time read from Ds1307 will be of BCD format,<br />like 0x12,0x39,0x26 for 12hr,39min and 26sec.  
 
|-
 
|-
−
| Usage ||
+
| Usage ||<syntaxhighlight  lang = "c"> uint8_t hour,min,sec;
 +
RTC_GetTime(&hour,&min&sec); //Now the hour,min,sec with have the time in BCD format.</syntaxhighlight>
 
|}
 
|}
 +
  
  
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{{#Widget:LibTable}}
 
{{#Widget:LibTable}}
 
|-
 
|-
−
|Defination ||  
+
|Defination ||<syntaxhighlight  lang = "c">void RTC_GetDate(uint8_t *ptr_day_u8,uint8_t *ptr_month_u8,uint8_t *ptr_year_u8)</syntaxhighlight>
 
|-
 
|-
−
| Input Arguments ||  
+
| Input Arguments || <syntaxhighlight  lang = "c">uint8_t * : Address to copy Day.
 +
uint8_t * : Address to copy Month.
 +
uint8_t * : Address to copy Year.</syntaxhighlight>
 
|-
 
|-
−
| Return Value||  
+
| Return Value|| none
 
|-
 
|-
−
| Description ||
+
| Description ||This function is used to get the Date(d,m,y) from Ds1307 RTC.<br />
 +
Note: The date read from Ds1307 will be of BCD format,<br />
 +
like 0x15,0x08,0x47 for 15th day,8th month and 47th year.  
 
|-
 
|-
−
| Usage ||
+
| Usage ||<syntaxhighlight  lang = "c"> uint8_t hour,min,year;
 +
RTC_GetDate(&hour,&min&year); //Now the hour,min,year with have the Date in BCD format.</syntaxhighlight>
 
|}
 
|}
  

Revision as of 11:20, 10 January 2015

RTC

RTC_Init

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



RTC_SetTime

{{#Widget:LibTable}}
Defination 
 void RTC_SetTime(uint8_t var_hour_u8, uint8_t var_min_u8, uint8_t var_sec_u8)
Input Arguments 
uint8_t: Hour (0x00-0x23) BCD format
uint8_t: Minute (0x00-0x59) BCD format
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 RTC_SetTime(0x10,0x40,0x20); //All the arguments should be in BCD format



RTC_SetDate

{{#Widget:LibTable}}
Defination 
 void RTC_SetDate(uint8_t var_day_u8, uint8_t var_month_u8, uint8_t var_year_u8)
Input Arguments 
uint8_t: Day(0x01-0x31) BCD format
uint8_t: Month(0x01-12) BCD format
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 RTC_SetDate(0x15,0x08,0x47); //All arguments should be in BCD format.



RTC_GetTime

{{#Widget:LibTable}}
Defination 
void RTC_GetTime(uint8_t *ptr_hour_u8,uint8_t *ptr_min_u8,uint8_t *ptr_sec_u8)
Input Arguments 
uint8_t *: Address to copy Hour.
uint8_t *: Address to copy Minute.
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 
 uint8_t hour,min,sec;
RTC_GetTime(&hour,&min&sec); //Now the hour,min,sec with have the time in BCD format.



RTC_GetDate

{{#Widget:LibTable}}
Defination 
void RTC_GetDate(uint8_t *ptr_day_u8,uint8_t *ptr_month_u8,uint8_t *ptr_year_u8)
Input Arguments 
uint8_t * : Address to copy Day.
uint8_t * : Address to copy Month.
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 
 uint8_t hour,min,year;
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=4276"