nrf51822 --- 软件模拟 万年历
1.目的
nrf51822用定时器模拟一个万年历
2.分析
3.平台：
协议栈版本：SDK10.0.0
编译软件：keil 5.14
硬件平台：nrf51822最小系统
例子：SDK 10.0.0\examples\ble_peripheral\ble_app_uart\pca10028\s110\arm4
4.步骤上传图片
/********************************************************************************
* @file calender.c
* @author Depth
* @version V1.0.0
* @date 12-May-2014
* @Emial [email protected]
* @brief calender module based on app timer
******************************************************************************/
#include "calender.h"
/*********************************************************************
* MACROS
*/
#define YearLength(yr) (IsLeapYear(yr) ? 366 : 365)
//日历变量
UTCTimeStruct Time_iOS = {8,59,15,9,6,2015};
UTCTimeStruct Time_Current;
/*********************************************************************
* CONSTANTS
*/
// (MAXCALCTICKS * 5) + (max remainder) must be <= (uint16_t max),
// so: (13105 * 5) + 7 <= 65535
#define MAXCALCTICKS ((uint16_t)(13105))
#define BEGYEAR 1970 // UTC started at 00:00:00 January 1, 2000
#define DAY 86400UL // 24 hours * 60 minutes * 60 seconds
/*********************************************************************
* EXTERNAL FUNCTIONS
*/
extern uint16_t ll_McuPrecisionCount(void);
/*********************************************************************
* LOCAL VARIABLES
*/
//static uint16_t previousLLTimerTick = 0;
//static uint16_t remUsTicks = 0;
//static uint16_t timeMSec = 0;
// number of seconds since 2010.1.1. 00:00:00
UTCTime TimeSeconds = 0;
/*********************************************************************
* LOCAL FUNCTION PROTOTYPES
*/
static uint8_t monthLength( uint8_t lpyr, uint8_t mon );
/*********************************************************************
* FUNCTIONS
*/
/*********************************************************************
* @fn Set_Clock
*
* @brief Set the new time. This will only set the seconds portion
* of time and doesn't change the factional second counter.
*
* @param newTime - number of seconds since 0 hrs, 0 minutes,
* 0 seconds, on the 1st of January 2000 UTC
*
* @return none
*/
void Set_Clock( UTCTime newTime )
{
TimeSeconds = newTime;
}
/*********************************************************************
* @fn Get_Clock
*
* @brief Gets the current time. This will only return the seconds
* portion of time and doesn't include the factional second
* counter.
*
* @param none
*
* @return number of seconds since 0 hrs, 0 minutes, 0 seconds,
* on the 1st of January 2000 UTC
*/
UTCTime Get_Clock( void )
{
return ( TimeSeconds );
}
/*********************************************************************
* @fn ConvertUTCTime
*
* @brief Converts UTCTime to UTCTimeStruct
*
* @param 输出 tm - pointer to breakdown struct
*
* @param 输入 secTime - number of seconds since 0 hrs, 0 minutes,
* 0 seconds, on the 1st of January 2000 UTC
*
* @return none
*/
uint16_t numDays =0;
void ConvertUTCTime( UTCTimeStruct *tm, UTCTime secTime )
{
// calculate the time less than a day - hours, minutes, seconds
{
uint32_t day = secTime % DAY; // 求出最后一天的剩余秒数，（除去整数的天数之后的剩余秒数）
tm->seconds = day % 60UL; // 求出最后一分钟的剩余秒数 （最后一天的剩余秒数对60求余）
tm->minutes = (day % 3600UL) / 60UL; //求出 最后一小时剩余的整分钟数
tm->hour = day / 3600UL; //求最后一天的整小时数
}
// Fill in the calendar - day, month, year
{
numDays = secTime / DAY;
tm->year = BEGYEAR;
while ( numDays >= YearLength( tm->year ) )
{
numDays -= YearLength( tm->year );
tm->year++;
}
tm->month = 0;
while ( numDays > monthLength( IsLeapYear( tm->year ), tm->month ) )
{
numDays -= monthLength( IsLeapYear( tm->year ), tm->month );
tm->month++;
}
tm->month++;
tm->day = numDays;
tm->day++;
}
}
/*********************************************************************
* @fn monthLength
*
* @param lpyr - 1 for leap year, 0 if not
*
* @param mon - 0 - 11 (jan - dec)
*
* @return number of days in specified month
*/
static uint8_t monthLength( uint8_t lpyr, uint8_t mon )
{
uint8_t days = 31;
if ( mon == 1 ) // feb
{
days = ( 28 + lpyr );
}
else
{
if ( mon > 6 ) // aug-dec
{
mon--;
}
if ( mon & 1 )
{
days = 30;
}
}
return ( days );
}
/*********************************************************************
* @fn ConvertUTCSecs
*
* @brief Converts a UTCTimeStruct to UTCTime
*
* @param tm - pointer to provided struct
*
* @return number of seconds since 00:00:00 on 01/01/2000 (UTC)
*/
UTCTime ConvertUTCSecs( UTCTimeStruct *tm )
{
uint32_t seconds;
/* Seconds for the partial day */
seconds = (((tm->hour * 60UL) + tm->minutes) * 60UL) + tm->seconds;
/* Account for previous complete days */
{
/* Start with complete days in current month */
uint16_t days = tm->day;
/* Next, complete months in current year */
{
int8_t month = tm->month - 1;//
while ( --month >= 0 )
{
days += monthLength( IsLeapYear( tm->year ), month );
}
}
/* Next, complete years before current year */
{
uint16_t year = tm->year;
while ( --year >= BEGYEAR )
{
days += YearLength( year );
}
}
/* Add total seconds before partial day */
seconds += (days * DAY);
}
return ( seconds );
}
/*********************************************************************
* @fn CaculateWeekday
*
* @brief Converts a UTCTimeStruct to UTCTime
*
* @param tm - pointer to provided struct
*
* @return number of seconds since 00:00:00 on 01/01/2000 (UTC)
*/
uint8_t CaculateWeekday(UTCTimeStruct *ptime)
{
// ¸ù¾ÝÈÕÆÚÊý¼ÆËãÐÇÆÚÊý
uint16_t year = ptime->year ;
uint8_t mounth = ptime->month;
uint8_t day = ptime->day + 1;
uint8_t week;
if(mounth==1 || mounth==2) { mounth += 12; year--; }
week = (day + 2*mounth + 3*(mounth+1)/5 + year + year/4 - year/100 + year/400)%7;
if(week == 0) week = 7;
return (uint8_t)week;
}
#include "nrf51.h"
#include "nrf_gpio.h"
#include "rtc.h"
#include "app_scheduler.h"
#include "ble_gatts.h"
#include "app_error.h"
#include "nrf_gpio.h"
//#include "power_manger.h"
#include <stdbool.h>
#include "calender.h"
#include "app_timer.h"
#include <stdint.h>
#include <string.h>
#include "nordic_common.h"
#include "nrf.h"
#include "nrf_gpio.h"
#include "nrf51_bitfields.h"
#include "app_error.h"
#include "calender.h"
/**********************************************************
注册一个1s的时间用于RTC
********************************************************/
#define APP_TIMER_PRESCALER 0
//wall clock id
app_timer_id_t SecondID; //广播的时候闪烁蓝灯
#define ONESECOND_INTERVAL APP_TIMER_TICKS(1000, APP_TIMER_PRESCALER) // 广播时间设置
static void SECONED_ADD_clock(void * p_context) //采集皮肤数据灯闪烁指示
{
(void)p_context;
UTCTimeStruct utc;
TimeSeconds++ ;
//一天有86400s 一个小时 3600s
ConvertUTCTime( &utc, Get_Clock() ); // ??????
if(utc.minutes == 0 && utc.seconds == 0 && utc.year !=0)
{
//每个小时
if(utc.hour == 0)
{
//每一天
if(utc.day == 0)
{
//每一个月
}
}
}
}
/**************************************************************************
* system clock init
***************************************************************************/
void SECOND_clock_init(void)
{
uint32_t err_code;
UTCTimeStruct utc;
utc.seconds = 0x00;
utc.minutes = 0x00;
utc.hour = 0x00;
utc.day = 0x00; //CC2540 ???? 0 -30
utc.month = 0x00; //CC2540 ???? 0 -11
utc.year = 2000;
Set_Clock( ConvertUTCSecs( &utc ) );
err_code = app_timer_create(&SecondID, APP_TIMER_MODE_REPEATED, SECONED_ADD_clock); //广播事件
APP_ERROR_CHECK(err_code);
err_code = app_timer_start(SecondID, ONESECOND_INTERVAL, NULL);
APP_ERROR_CHECK(err_code);
}
SECOND_clock_init();//初始化后，系统每1s，TimeSeconds加一
ConvertUTCTime( &utc, Get_Clock() ); // 获取当前时间
CaculateWeekday(); //可以获得当前的星期几