//****************************************************************************
//  PIC12F683 Sample Program
//  Project      :
//  Program Name : 
//  Programer    :
//  Create date  : 
//  Replace date :
//  History      :
//  Language     :  XC8 C Laungage Version 2.31
// 
//****************************************************************************
//  Description  :
//
//****************************************************************************
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include <math.h>
#include <stdlib.h>
#include <time.h>
#include <xc.h>
//int at 0x2007 __CONFIG = _INTRC_OSC_NOCLKOUT & _WDT_OFF & _PWRTE_OFF & _MCLRE_OFF & _CP_OFF 
//                        & _CPD_OFF & _BOD_OFF & _IESO_OFF &  _FCMEN_OFF ;
#pragma config FOSC  = INTOSCIO
#pragma config WDTE  = OFF
#pragma config PWRTE = OFF
#pragma config MCLRE = OFF
#pragma config CP    = OFF
#pragma config CPD   = OFF
#pragma config BOREN = OFF
#pragma config IESO  = OFF
#pragma config FCMEN = OFF

void Init_CCP(void);
void Tim1s(void);

int main(void) {

// *************************
//   1.Initialized Segment
// *************************
// (1)Set I/O Port
//   1-1)Set I/O Port config
    ANSEL=0x00;     //ALL Degital PORT 

//   1-2)Set OSC
//  OSCCON=0x70;    //OSC:8MHz
    OSCCON=0x30;    //OSC:500KHz

//   1-3)Set I/O Port
    TRISIO=0xFB;
    GPIO=0x00;

// (2)Initialize CCP-Module
    Init_CCP();

// *************************
//   2.Program main
// *************************
    while(1){
// (1)Move -60°
        CCPR1L = 7;
        Tim1s();

// (2)Move 0°
        CCPR1L = 12;
        Tim1s();

// (3)Move 60°
        CCPR1L = 16;
        Tim1s();

// (4)Move 0°
        CCPR1L = 12;
        Tim1s();
    }
}

//****************************************************************************
//   Function Name : Init_CCP
//   Title         : CCPモジュールの初期化
//   Input         : 
//   Output        : 
//   Description   : 
//****************************************************************************
void Init_CCP(void)
{
// 1.Set CCP1CON Register
//    Bit7-6:00, Bit5-4:PMW mode, Bit3-0:CCP1 mode select bit
//    ※Bit5-4(00):Init value OSC,Bit3-0(11xx):PWM mode 
    CCP1CON = 0x0c ; // B'00001100'

//  2.Set PR2 Register
//     PWM Frequency
//
    PR2 = 156 ; // 50Hz; 500000Hz(Int_OSC)/4/16(Prescaler)/50(Hz)==>156(DEC)

//  3.Set CCPR1L Register
//     PWM Duty
//
    CCPR1L = 0 ;

//  4.Set T2CON Register
//     Bit6-3:00, Bit2:TIMER 2 ON, Bit1-0:Prescale(00;Prescaler=1,01;Prescaler=4,1X;Prescaler=16)
    T2CON = 0x06 ; //B'00000110'
}

//******************************************************************************************
//   Function Name : TIM1S
//   Title         : タイマー
//   Input         : 
//   Output        : 
//   Description   :
//******************************************************************************************
void Tim1s(void)
{
// 1.Set Register
// (1)T1CON Register B'00010101'
//     Bit7(0)          :None
//     Bit6(0)/T1RUN    :0 = System clock is derived from another source
//     Bit5,4(01)/T1CKPS:1:2 Prescale Value
//     Bit3(0)/T1OSCEN  :OSC is shut off
//     Bit2(1)/T1SYNC   :ASyncronize
//     Bit1(0)/TMR1CS   :Internal clock(Fosc/4) 
//     Bit0(1)/TMR1ON   :Enable Timer1
    T1CON = 0x15 ;

//  (2)Set TMR1 Value
//    500000Hz(Int_OSC)/4/2(Prescale) => 0d62500(0xF424)
//    0xFFFF(-)0xF424 => 0d3035(0x0BDB)
//   
    TMR1H = 0x0b ;
    TMR1L = 0xdb ;

//
// 2.Timer
//
    PIR1 = PIR1 & 0xfe;
    while((PIR1 & 0x01) == 0);

}