/*********************************************************************
*                                                               		*
*   Filename:      lcd.c	       												*
*   Date:          23/01/2013                                        *
*   Version:  		 1.0                                             	*
*   Author:        Goran Ljubic		                                 *
*                                                                    *
**********************************************************************
*                                                                    *
*   Architecture:  Microchip PIC Enhanced Mid-range Core             *
*   Processor:     16F1827                                           *
*   Compiler:      MPLAB XC8 v1.12 (Free mode)                       *
*                                                                    *
**********************************************************************
*                                                                    *
*   Description:    Primer 				                              *
*                                                                    *
*  U primeru je obradeno pisanje na  HD447780 kompatibilnom LCD.     *
*  																						*
*                                                                    *
*********************************************************************/


#include <xc.h>
#include "hd447780.h"


#define _XTAL_FREQ  4000000     // frekvencija na kojoj radi interni oscilator. Neophodno definisati zbog delay() funkcija

/******************************************************************************************************************************
																																										*
CONFIGURATION WORDS																																				*
Watchdog timer is disabled, Internal RC oscillator I/O function on CLKIN pin, MCLR/VPP pin function is digital input, 			*
Program memory code protection is enabled, Brown-out Reset disabled, Power-up timer enabled, 											*
Data memory code protection is enabled, CLKOUT function is disabled. I/O or oscillator function on the CLKOUT pin,				*
Internal/External Switchover mode is disabled, Fail-Safe Clock Monitor is disabled, 														*
000h to FFFh flash memory write protected, 4x PLL disabled, Stack Overflow or Underflow will not cause a Reset,					*
High-voltage on MCLR/VPP must be used for programming																									*
																																										*
******************************************************************************************************************************/

   __CONFIG(WDTE_OFF & FOSC_INTOSC & MCLRE_OFF & CP_ON & BOREN_OFF & PWRTE_ON & CPD_ON & CLKOUTEN_OFF & IESO_OFF & FCMEN_OFF); 
   __CONFIG(WRT_ALL & PLLEN_OFF & STVREN_OFF & LVP_OFF); 



/******************************
*	   	MAIN PROGRAM			*		
******************************/
void main(void)
{
unsigned char i;
/******************************
*		INITIALISATION				*
******************************/
	OSCCON = 0b01101010;		// 4x PLL is disabled, 4 MHz HF Internal oscillator block 

	ANSELA = 0; 				// Svi pinovi porta A konfigurisani kao digitalni I/O
	TRISA = 0b11111111;		// Svi pinovi porta A konfigurisani kao ulazni

	ANSELB = 0; 				// Svi pinovi porta B konfigurisani kao digitalni I/O
	TRISB = 0b11111111;		// Pinovi RB0-RB4 ulazni, pinovi RB4-RB7 izlazni


	XLCDInit();
	XLCDClear();
   XLCDGoto(0,0);
	XLCDPutROMString("INICIJALIZACIJA ");
	XLCDGoto(1,0);
	XLCDPutROMString("   DISPLEJA     ");
	
	_delay(2000000);					// Pauza od približno dve sekunde
/******************************
*  		MAIN LOOP				*
******************************/

	XLCDClear();
   XLCDGoto(0,6);
	XLCDPutROMString("i = ");

	while(1)
	{
		for(i=0;i<10;i++)
		{
   		XLCDGoto(0,10);
			XLCDPut(i + 0x30);			// na LCD se šalje ascii karakter
			_delay(1000000);				// Pauza od približno jedne sekunde
		}
	}
}