#include <stdio.h>
#include <stdlib.h>
#include <p30F4011.h>

#define En LATDbits.LATD0
#define RW LATDbits.LATD1
#define RS LATFbits.LATF6
#define DB7 LATCbits.LATC13
#define DB6 LATCbits.LATC15
#define DB5 LATEbits.LATE8
#define DB4 LATCbits.LATC14

void delays_ms(unsigned int ms);
void config_lcd();
void send_lcd_word(unsigned char word);
void init_lcd();
void send_lcd_command(unsigned char command);
void send_lcd_data(unsigned char data);

#pragma config FOS = FRC,FPR = ERCIO, WDT = WDT_OFF, MCLRE = MCLR_EN, ICS = ICS_PGD, FPWRT = PWRT_64, BOREN = PBOR_ON, BODENV = BORV45

send_lcd_word(unsigned char word)
{
         union{
                unsigned char duma;
                struct{
                            unsigned b0:1;
                            unsigned b1:1;
                            unsigned b2:1;
                            unsigned b3:1;
                            unsigned b4:1;
                            unsigned b5:1;
                            unsigned b6:1;
                            unsigned b7:1;
                         }bits;
            } usend;

            usend.duma = word;

            RW = 0;

            DB7 = usend.bits.b7;
            DB6 = usend.bits.b6;
            DB5 = usend.bits.b5;
            DB4 = usend.bits.b4;

            En = 1;
            delays_ms(10);
            En = 0;
            delays_ms(10);

            DB7 = usend.bits.b3;
            DB6 = usend.bits.b2;
            DB5 = usend.bits.b1;
            DB4 = usend.bits.b0;

            En = 1;
            delays_ms(10);
            En = 0;
            delays_ms(10);

}

send_lcd_command(unsigned char command)
{
    RS = 0;//send command
    delays_ms(1);
    send_lcd_word(command);
}


send_lcd_data(unsigned char data)
{
    RS = 1;//send data
    delays_ms(1);
    send_lcd_word(data);

}




void init_lcd()
{
    TRISDbits.TRISD0 = 0;
    TRISDbits.TRISD1 = 0;
    TRISFbits.TRISF6 = 0;
    TRISCbits.TRISC13 = 0;
    TRISCbits.TRISC14 = 0;
    TRISCbits.TRISC15 = 0;
    TRISEbits.TRISE8 = 0;

    delays_ms(50);
   
    send_lcd_command(0x33);
    delays_ms(10);

    send_lcd_command(0x32);
    delays_ms(10);


}
void config_lcd()
{
    delays_ms(50);

    send_lcd_command(0b00101000);
    delays_ms(10);

    send_lcd_command(0b00001000);
    delays_ms(10);

    send_lcd_command(0b00000001);
    delays_ms(1);

    send_lcd_command(0b00000110);
    delays_ms(1);

    send_lcd_command(0b00001111);
    delays_ms(1);

}



int main(int argc, char** argv) {

    init_lcd();
    config_lcd();



    while(1);;

    return (EXIT_SUCCESS);
}