//******************************************************************************************
//  PIC18F4550 Sample Program
//   Project      :
//   Program Name :
//   Programer    :
//   Create date  :  Version 1.0    H22.08.20
//   History      :
//   Laungage     :  MPLAB C18 
//******************************************************************************************
//  (1)Description
//
//******************************************************************************************
#include	<p18f4550.h>
#include	<stdio.h>
#include	<string.h>
#include	<stdlib.h>
#include	<math.h>
#include	<ctype.h>
#include	<io.h>
#include	<adc.h>
//
//Define configration
//
#pragma config PLLDIV = 4           // Divide by 4 (16 MHz oscillator input) 
#pragma config CPUDIV = OSC1_PLL2   // [OSC1/OSC2 Src: /1][96 MHz PLL Src: /2]
#pragma config USBDIV = 2           // USB clock source comes from the 96 MHz PLL divided by 2
#pragma config FOSC = HSPLL_HS      // HS oscillator, PLL enabled, HS used by USB
#pragma config FCMEN = OFF          // Fail-Safe Clock Monitor disabled
#pragma config IESO = OFF           // Oscillator Switchover mode disabled
#pragma config PWRT = OFF           // PWRT disabled
#pragma config BOR = OFF            // Brown-out Reset disabled in hardware and software
#pragma config BORV = 0             // Maximum setting
#pragma config VREGEN = OFF         // USB voltage regulator disabled
//#pragma config VREGEN = ON          // USB voltage regulator enabled
#pragma config WDT = OFF            // HW Disabled - SW Controlled
#pragma config WDTPS = 1            // Watchdog Timer Postscale Select bits:   1:1
//#pragma config MCLRE = OFF          // RE3 input pin enabled; MCLR disabled
#pragma config MCLRE = ON           // MCLR pin enabled; RE3 input pin disabled
#pragma config LPT1OSC = OFF        // Timer1 configured for higher power operation
#pragma config PBADEN = OFF         // PORTB<4:0> pins are configured as digital I/O on Reset
//#pragma config PBADEN = ON          // PORTB<4:0> pins are configured as analog input channels on Reset
//#pragma config CCP2MX = OFF         // CCP2 input/output is multiplexed with RB3
#pragma config CCP2MX = ON          // CCP2 input/output is multiplexed with RC1
#pragma config STVREN = OFF         // Stack full/underflow will not cause Reset
#pragma config LVP = OFF            // Single-Supply ICSP disabled
#pragma config ICPRT = OFF          // Dedicated In-Circuit Debug/Programming Port (ICPORT) Enable bit : ICPORT disabled
#pragma config XINST = OFF          // Instruction set extension and Indexed Addressing mode disabled (Legacy mode)
#pragma config DEBUG = OFF          // Background debugger disabled, RB6 and RB7 configured as general purpose I/O pins
#pragma config CP0 = OFF            // Block 0 (000800-001FFFh) not code-protected
#pragma config CP1 = OFF            // Block 1 (002000-003FFFh) not code-protected
#pragma config CP2 = OFF            // Block 2 (004000-005FFFh) not code-protected
#pragma config CP3 = OFF            // Block 3 (006000-007FFFh) not code-protected
#pragma config CPB = OFF            // Boot block (000000-0007FFh) not code-protected
#pragma config CPD = OFF            // Data EEPROM not code-protected
#pragma config WRT0 = OFF           // Block 0 (000800-001FFFh) not write-protected
#pragma config WRT1 = OFF           // Block 1 (002000-003FFFh) not write-protected
#pragma config WRT2 = OFF           // Block 2 (004000-005FFFh) not write-protected
#pragma config WRT3 = OFF           // Block 3 (006000-007FFFh) not write-protected
#pragma config WRTB = OFF           // Boot block (000000-0007FFh) not write-protected
#pragma config WRTC = OFF           // Configuration registers (300000-3000FFh) not write-protected
#pragma config WRTD = OFF           // Data EEPROM not write-protected
#pragma config EBTR0 = OFF          // Block 0 (000800-001FFFh) not protected from table reads executed in other blocks
#pragma config EBTR1 = OFF          // Block 1 (002000-003FFFh) not protected from table reads executed in other blocks
#pragma config EBTR2 = OFF          // Block 2 (004000-005FFFh) not protected from table reads executed in other blocks
#pragma config EBTR3 = OFF          // Block 3 (006000-007FFFh) not protected from table reads executed in other blocks
#pragma config EBTRB = OFF          // Boot block (000000-0007FFh) not protected from table reads executed in other blocks

//
//Define function
//
void mvLED(unsigned char *);
void wat(unsigned int);


//******************************************************************************************
//   Program       : 
//   Title         : 
//   Input         :
//   Output        :
//******************************************************************************************
void main(void)
{
unsigned char LEDlst = 0x01;

// *****************************
//   1.Initialized Segment
// *****************************
    TRISA = 0xFF;
    TRISB = 0xFF;
    TRISC = 0xFF;
    TRISD = 0x00;
    LATD  = 0x00;
    PORTD = 0x00;

// *****************************
//   2.Program main
// *****************************
    while(1){
        mvLED(&LEDlst);
        PORTD = LEDlst;
        wat(1000);
    };
}

//******************************************************************************************
//   Function Name : mvLED
//   Title         : Move LED function
//   Input         :
//   Output        :
//******************************************************************************************
void mvLED(unsigned char *LEDlst)
{
    if(*LEDlst == 1){
        *LEDlst = 2;
    }else if(*LEDlst > 127){
        *LEDlst = 1;
    }else{
        *LEDlst = *LEDlst * 2;
    }
    PORTB = *LEDlst;
    return;	
}

//******************************************************************************************
//   Function Name : wat
//   Title         : wait function
//   Input         :
//   Output        :
//******************************************************************************************
void wat(unsigned int tim)
{
    unsigned int lp,lp1 ;
    for(lp=0 ; lp < tim ; lp++ )
        for(lp1=0 ; lp1 < 100 ; lp1++ ) ;            
    return;
}