/*******************************************************************************
  Main Source File

  Company:
    Microchip Technology Inc.

  File Name:
    main.c

  Summary:
    This file contains the "main" function for a project.

  Description:
    This file contains the "main" function for a project.  The
    "main" function calls the "SYS_Initialize" function to initialize the state
    machines of all modules in the system
 *******************************************************************************/

// *****************************************************************************
// *****************************************************************************
// Section: Included Files
// *****************************************************************************
// *****************************************************************************

#include <stddef.h>                     // Defines NULL
#include <stdbool.h>                    // Defines true
#include <stdlib.h>                     // Defines EXIT_FAILURE
#include "definitions.h"                // SYS function prototypes


#include <stdio.h>
#include "1lcd_lib_XC32.h"


struct tm initialTime;  //年月日時分秒の構造体を宣言
struct tm alarm_time;   //アラーム時刻の　年月日時分秒の構造体を宣言

int delay_Clock = 200000000;   //200MHz
char Buf[32];

bool LED;
int SecStatus1;
int SecFlag;
int Year, Month, Day, WeekDay, Hour, Minute, Second;


int AlarmOccurrence;    //アラーム発生フラグ
int Hour0,Minute0,Second0;

char Week[7][4] = {{"Sun"},{"Mon"},{"Tue"},{"Wed"},{"Thu"},{"Fri"},{"Sat"}};    // Week[7][3]では、文字列終端の\0が含まれない




void delay_us(volatile unsigned int usec)        //1μsec遅延
{
        volatile  int count;

        count = (int)(delay_Clock/20000000)*usec;


        do      //実測　at　200MH (Clock=200000000)
        {       //delay_us(1000)：1000.4μsec  delay_us(100)：100.6μsec  delay_us(10):10.5μsec　　delay_us(1)：1.5μsec
                asm("NOP"); asm("NOP"); asm("NOP"); asm("NOP"); asm("NOP");asm("NOP");
                asm("NOP"); asm("NOP"); asm("NOP"); asm("NOP"); asm("NOP"); asm("NOP");

                count--;
        }while(count != 0);


}



void delay_ms(volatile unsigned int msec)        //1msec遅延
{
        volatile unsigned int i;         //実測：at200MH (Clock=200000000)//delay_ms(1)： 1.0006msec   delay_ms(100)：100.04msec

        for(i=0; i<msec; i++)
        delay_us(1000);
}


void RTCC_Callback( uintptr_t context) //アラーム発生コールバック関数
{
    AlarmOccurrence = 1;    //アラーム発生のフラグをたてる
    RTCC_TimeGet(&initialTime);
    Hour0 = initialTime.tm_hour;     //時
    Minute0 = initialTime.tm_min;    //分
    Second0 = initialTime.tm_sec;    //秒
    
}



void Display_DateTime(void) //年月日と時刻の液晶表示
{
    lcd_cmd(0x80);          //1目の先頭へ
    sprintf(Buf,"Alarm occurred        ");//
    lcd_str(Buf);                   //液晶表示
    
    lcd_cmd(0xC0);          //２行目の先頭へ
    sprintf(Buf," at %02d:%02d:%02d       ",Hour0,Minute0,Second0);	//
    lcd_str(Buf);           // 開始メッセージ1行目表示
}


void APP_Initialize ( void )
{       
    lcd_init();				// LCD初期化
    lcd_cmd(0b00001100);    // カーソル:OFF  ブﾘﾝｸ:OFF

        
    lcd_clear(); 
    
    delay_ms(1000);
    
    lcd_cmd(0x80);          //1目の先頭へ
    sprintf(Buf,"RTCC Demo        ");//
    lcd_str(Buf);                   //液晶表示
    
    delay_ms(1000);

    lcd_cmd(0xC0);          //２行目の先頭へ
    sprintf(Buf,"  Start !!           ");	//
    lcd_str(Buf);           // 開始メッセージ1行目表示
    
     delay_ms(1000);
     
     
    // Time setting 2017年2月28日23時59分45秒 火曜日
    initialTime.tm_year = 17;
    initialTime.tm_mon = 2;
    initialTime.tm_mday = 28;
    initialTime.tm_wday = 2; 
    initialTime.tm_hour = 23;
    initialTime.tm_min = 59;
    initialTime.tm_sec = 45;
     

    RTCC_TimeSet(&initialTime);//年月日時分秒設定
    
     // Alarm setting 2017年3月1日0時0分15秒　水曜日
    alarm_time.tm_year = 17;
    alarm_time.tm_mon = 3;
    alarm_time.tm_mday = 1;
    alarm_time.tm_wday = 3; 
    alarm_time.tm_hour = 0;
    alarm_time.tm_min = 0;
    alarm_time.tm_sec = 15;
    
    RTCC_AlarmSet(&alarm_time, RTCC_ALARM_MASK_HHMISS); //RTCC_ALARM_MASK_HHMISS: Once a day
}



// *****************************************************************************
// *****************************************************************************
// Section: Main Entry Point
// *****************************************************************************
// *****************************************************************************

int main ( void )
{
    
    /* Initialize all modules */
    SYS_Initialize ( NULL );
    
    APP_Initialize ();

    RTCC_CallbackRegister(RTCC_Callback, (uintptr_t) NULL);

    while ( true )
    {
        /* Maintain state machines of all polled MPLAB Harmony modules. */
        SYS_Tasks ( );
        
        SecStatus1 = RTCCONbits.HALFSEC;    //Half Second bitの状態取得
            
        if(SecStatus1 != SecFlag)
        {
            SecFlag = SecStatus1;   //ビット反転
                
            if(LED == 1)
            {
                LED = 0;
                LATGbits.LATG15 = 1;    //LED点灯
                RTCC_TimeGet(&initialTime);
            }
            else
            {
                LED = 1;
                LATGbits.LATG15 = 0;    //LED消灯
            }
            
            Year = initialTime.tm_year; //西暦年 
            Month = initialTime.tm_mon; //月
            Day = initialTime.tm_mday;  //日
            WeekDay = initialTime.tm_wday;  //曜日
            Hour = initialTime.tm_hour;     //時
            Minute = initialTime.tm_min;    //分
            Second = initialTime.tm_sec;    //秒

    
            if(AlarmOccurrence != 1 )   //アラーム発生の割り込みが発生していない場合
            {      
                lcd_cmd(0x80);          //1目の先頭へ
                sprintf(Buf,"%d/%02d/%02d %s        ",Year,Month,Day,Week[WeekDay]);//
                lcd_str(Buf);                   //液晶表示
    
                lcd_cmd(0xC0);          //２行目の先頭へ
                sprintf(Buf,"%02d:%02d:%02d       ",Hour,Minute,Second);	//
                lcd_str(Buf);           // 開始メッセージ1行目表示
            }
            else
            {
                RTCCONbits.RTCOE = 0;  //RTCC(RD0)ピンへのRTCCクロック(1Hz,duty=50%))の停止  //RTCC output is disabled
                TRISDbits.TRISD0 = 0;
                LATDbits.LATD0 = 0;
                    
                Display_DateTime();     //年月日と時刻の液晶表示
            } 
        }
    }

    /* Execution should not come here during normal operation */

    return ( EXIT_FAILURE );
}


/*******************************************************************************
 End of File
*/