//-----------------------------------------------------------------------------
// Note
//  1桁の7セグメントの点灯
//  PICの周波数を32Mhzに設定
//-----------------------------------------------------------------------------
#include <xc.h>
#include <stdio.h>
#include <stdlib.h>


// コンフィグレーションBIT1 設定
#pragma config FOSC = INTOSC    // Oscillator Selection (INTOSC oscillator: I/O function on CLKIN pin)
#pragma config WDTE = OFF       // Watchdog Timer Enable (WDT disabled)
#pragma config PWRTE = ON       // Power-up Timer Enable (PWRT enabled)
#pragma config MCLRE = OFF      // MCLR Pin Function Select (MCLR/VPP pin function is digital input)
#pragma config CP = OFF         // Flash Program Memory Code Protection (Program memory code protection is disabled)
#pragma config CPD = OFF        // Data Memory Code Protection (Data memory code protection is disabled)
#pragma config BOREN = OFF      // Brown-out Reset Enable (Brown-out Reset disabled)
#pragma config CLKOUTEN = OFF   // Clock Out Enable (CLKOUT function is disabled. I/O or oscillator function on the CLKOUT pin)
#pragma config IESO = OFF       // Internal/External Switchover (Internal/External Switchover mode is disabled)
#pragma config FCMEN = OFF      // Fail-Safe Clock Monitor Enable (Fail-Safe Clock Monitor is disabled)

// コンフィグレーションBIT2 設定
#pragma config WRT = OFF        // Flash Memory Self-Write Protection (Write protection off)
#pragma config PLLEN = ON       // PLL Enable (4x PLL enabled)
#pragma config STVREN = ON      // Stack Overflow/Underflow Reset Enable (Stack Overflow or Underflow will cause a Reset)
#pragma config BORV = HI        // Brown-out Reset Voltage Selection (Brown-out Reset Voltage (Vbor), high trip point selected.)
#pragma config LVP = OFF        // Low-Voltage Programming Enable (High-voltage on MCLR/VPP must be used for programming)

// 点灯IOの定義
#define SEG_LED_A RA2
#define SEG_LED_B RC0
#define SEG_LED_C RC7
#define SEG_LED_D RC6
#define SEG_LED_E RC3
#define SEG_LED_F RA1
#define SEG_LED_G RA0
#define SEG_LED_DP RB7

// 点灯位置の設定
const unsigned char seg_led[18] =
{
    {0b00111111},   // 0
    {0b00000110},   // 1
    {0b01011011},   // 2
    {0b01001111},   // 3
    {0b01100110},   // 4
    {0b01101101},   // 5
    {0b01111101},   // 6
    {0b00100111},   // 7
    {0b01111111},   // 8
    {0b01100111},   // 9
    {0b00000001},   // a
    {0b00000010},   // b
    {0b00000100},   // c
    {0b00001000},   // d
    {0b00010000},   // e
    {0b00100000},   // f
    {0b01000000},   // g
    {0b10000000}    // dp
};




int main(int argc, char** argv)
{
    long i;
    long wait = 1000000;
    short seg = 0;
    short num = 10;
    
    OSCCON = 0b01110000 ;    // 内部クロック8ＭＨｚ

    ANSELA = 0b00000000 ;    // すべてデジタルI/Oに割当てる
    TRISA  = 0b00001000 ;    // ピンは全て出力に割当てる(RA3は入力のみとなる)
    PORTA  = 0b00000000 ;    // 出力ピンの初期化(全てLOWにする)

    ANSELB = 0b00000000 ;    // すべてデジタルI/Oに割当てる
    TRISB  = 0b00000000 ;    // ピンは全て出力に割当てる
    PORTB  = 0b00000000 ;    // 出力ピンの初期化(全てLOWにする)

    ANSELC = 0b00000000 ;    // すべてデジタルI/Oに割当てる
    TRISC  = 0b00000000 ;    // ピンは全て出力に割当てる
    PORTC  = 0b00000000 ;    // 出力ピンの初期化(全てLOWにする)

    
    for(;;)
    {
        seg = seg_led[num];

        // a点灯
        if( (seg & 0x01) != 0 )
            SEG_LED_A = 0;
        else
            SEG_LED_A = 1;

        // b点灯
        if( (seg & 0x02) != 0 )
            SEG_LED_B = 0;
        else
            SEG_LED_B = 1;

        // c点灯
        if( (seg & 0x04) != 0 )
            SEG_LED_C = 0;
        else
            SEG_LED_C = 1;

        // d点灯
        if( (seg & 0x08) != 0 )
            SEG_LED_D = 0;
        else
            SEG_LED_D = 1;

        // e点灯
        if( (seg & 0x10) != 0 )
            SEG_LED_E = 0;
        else
            SEG_LED_E = 1;

        // f点灯
        if( (seg & 0x20) != 0 )
            SEG_LED_F = 0;
        else
            SEG_LED_F = 1;

        // g点灯
        if( (seg & 0x40) != 0 )
            SEG_LED_G = 0;
        else
            SEG_LED_G = 1;

        // DP点灯
        if( (seg & 0x80) != 0 )
            SEG_LED_DP = 0;
        else
            SEG_LED_DP = 1;

        // 待ち時間設定
        if( num < 10 )
        {
            wait = 1000000;
        }
        else
        {
            wait = 500000;
        }

        for(i=0; i<wait; i++)
        {
            // 処理無し(一定時間待ち)
        }

        num++;
        if(num >= 18)
            num = 0;
    }
    
    return (EXIT_SUCCESS);
}