mac2.c

This code is used to TCP/IP connection It is developed by PIC18F452 and all this code is successfull

#include "tcptask.h"
#include "mac2.h"
#define USART_USE_BRGH_LOW
#if defined(USART_USE_BRGH_LOW)
    #define SPBRG_VAL   ( ((CLOCK_FREQ/BAUD_RATE)/64) - 1)
#else
    #define SPBRG_VAL   ( ((CLOCK_FREQ/BAUD_RATE)/16) - 1)
#endif
#if SPBRG_VAL > 255
    #error "Calculated SPBRG value is out of range for currnet CLOCK_FREQ."
#endif

#define STARTUP_MSG "DXT TEST V1.00"



void IniPortA(void)
{
#ifdef USE_DEMO

	TRISA=0;//porta output
	PORTAbits.RA2=1;//D5,D6 black
	PORTAbits.RA3=1;
	PORTAbits.RA4=0;//D4 light
#endif

	OpenUSART(USART_TX_INT_OFF&
		USART_RX_INT_OFF&
		USART_ASYNCH_MODE&
		USART_EIGHT_BIT&
		USART_CONT_RX&USART_BRGH_LOW,SPBRG_VAL);//0x40);
}
void InitializeBoard(void)
{
    /*
     * Setup for PORTA.RA0 as analog input while rests
     * as digital i/o lines.
     */
    ADCON1  = 0b10000010;       // RA0 as analog input, Right justified
    TRISA   = 0x03;

    /*
     * LCD is enabled using RA5.
     */
    PORTAbits.RA5 = 0;          // Disable LCD.

    /*
     * Turn off the LED's.
     */
    LATA2=1;//LATAbits.LATA2 = 1;
    LATA3=1;

    /*
     * External data EEPROM needs pull-ups, so enable internal
     * pull-ups.
     */
    INTCON2bits.RBPU = 0;
    TXSTA = 0b00100000;     // Low BRG speed
    RCSTA = 0b10010000;
    SPBRG = 32;
    T0CON = 0;
    INTCONbits.GIEH = 1;
    INTCONbits.GIEL = 1;

}
unsigned char woEERead(unsigned int add)
{
	unsigned char i;
	i=add;
	EEADR=i;
	//i=add>>8;
	//EEADRH=i;
	EECON1bits.EEPGD=0;
	EECON1bits.CFGS=0;
	EECON1bits.RD=1;
	i=EEDATA;
	return i;
}
void woEEWrite(unsigned int add,unsigned char data)
{
	unsigned char i;
	i=add;
	EEADR=i;
	//i=add>>8;
	//EEADRH=i;
	EEDATA=data;
	EECON1bits.EEPGD=0;
	EECON1bits.CFGS=0;
	EECON1bits.WREN=1;
	INTCONbits.GIE=0;
	EECON2=0x55;
	EECON2=0xAA;
	EECON1bits.WR=1;
	while(!PIR2bits.EEIF);
	PIR2bits.EEIF=0;
	EECON1bits.WREN=0;
	INTCONbits.GIE=1;
}
void woEEinf()
{
  woEEWrite(0x0001,192);
  woEEWrite(0x0002,168);
  woEEWrite(0x0003,23);
  woEEWrite(0x0004,98);
  woEEWrite(0x0005,0x00);
  woEEWrite(0x0006,0x04);
  woEEWrite(0x0007,0xa3);
  woEEWrite(0x0008,0x00);
  woEEWrite(0x0009,0x09);
  woEEWrite(0x000a,0x53);
  woEEWrite(0x000b,0);
  woEEWrite(0x000c,50);
  woEEWrite(0x000d,192);
  woEEWrite(0x000e,168);
  woEEWrite(0x000f,23);
  woEEWrite(0x0010,99);
  woEEWrite(0x0011,0x00);
  woEEWrite(0x0012,0x04);
  woEEWrite(0x0013,0xa3);
  woEEWrite(0x0014,0x00);
  woEEWrite(0x0015,0x09);
  woEEWrite(0x0016,0x55);
  woEEWrite(0x0017,1);
  woEEWrite(0x0018,51);
}