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// PIC16F886 Configuration Bit Settings

// 'C' source line config statements

// CONFIG1
#pragma config FOSC = INTRC_NOCLKOUT// Oscillator Selection bits (INTOSCIO oscillator: I/O function on RA6/OSC2/CLKOUT pin, I/O function on RA7/OSC1/CLKIN)
#pragma config WDTE = OFF       // Watchdog Timer Enable bit (WDT disabled and can be enabled by SWDTEN bit of the WDTCON register)
#pragma config PWRTE = OFF      // Power-up Timer Enable bit (PWRT disabled)
#pragma config MCLRE = ON       // RE3/MCLR pin function select bit (RE3/MCLR pin function is MCLR)
#pragma config CP = OFF         // Code Protection bit (Program memory code protection is disabled)
#pragma config CPD = OFF        // Data Code Protection bit (Data memory code protection is disabled)
#pragma config BOREN = ON       // Brown Out Reset Selection bits (BOR enabled)
#pragma config IESO = ON        // Internal External Switchover bit (Internal/External Switchover mode is enabled)
#pragma config FCMEN = ON       // Fail-Safe Clock Monitor Enabled bit (Fail-Safe Clock Monitor is enabled)
#pragma config LVP = ON         // Low Voltage Programming Enable bit (RB3/PGM pin has PGM function, low voltage programming enabled)

// CONFIG2
#pragma config BOR4V = BOR40V   // Brown-out Reset Selection bit (Brown-out Reset set to 4.0V)
#pragma config WRT = OFF        // Flash Program Memory Self Write Enable bits (Write protection off)

// #pragma config statements should precede project file includes.
// Use project enums instead of #define for ON and OFF.

#include <xc.h>

#define _XTAL_FREQ 8000000

void main(void) {
  TRISC &= ~(1<<RC0);
  PORTC &= ~(1<<RC0);

    while (1)
  {
    PORTCbits.RC0 = 1;
    __delay_ms(1000);
    PORTCbits.RC0 = 0;
    __delay_ms(1000);
   }
   
}

// bitfield definitions
typedef union {
    struct {
        unsigned RC0                    :1;
        unsigned RC1                    :1;
        unsigned RC2                    :1;
        unsigned RC3                    :1;
        unsigned RC4                    :1;
        unsigned RC5                    :1;
        unsigned RC6                    :1;
        unsigned RC7                    :1;
    };
} PORTCbits_t;
extern volatile PORTCbits_t PORTCbits @ 0x007;

void init (void)
{
           INTCON=0x00;
           PIE1=0x00;
           PIR1=0x00;
           OSCCON=0b01100000;
           nRBPU=0;
           WPUB=0xFF;
           PORTA=0;
           PORTB=0;
           PORTC=0;
//           PORTD=0;
           ADCON1=0x06; // цифровые выводы.
           ANSEL=0x00;
           ANSELH=0x00;
           TRISA=0;
           PORTA=0;
           TRISB=0xFF;
           PORTB=0;
           TRISC=0;
           PORTC=0;
//           TRISD=0;}