TCP/IP Stack, FAT16 System on a Microcontroller

/*
 * tcpstack.c
 *
 *  Created on: 4/07/2011
 *      Author: lyl
 */

#include "string.h"
#include <stdio.h>
#include "tcpipconfig.h"
#include "helper.h"
#include "macb.h"

/*! initial sequence number for ICMP request and reply */

/*! sequence number for ICMP request and reply */
unsigned short seqnum = SEQ_NUM_START;

const unsigned char my_ip[4] = {ETHERNET_CONF_IPADDR0,ETHERNET_CONF_IPADDR1,ETHERNET_CONF_IPADDR2,ETHERNET_CONF_IPADDR3};

/*! define the ARP global frame */
const unsigned char ARP_FRAME[42] = {
	0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
	ETHERNET_CONF_ETHADDR0,ETHERNET_CONF_ETHADDR1,ETHERNET_CONF_ETHADDR2,ETHERNET_CONF_ETHADDR3,ETHERNET_CONF_ETHADDR4,ETHERNET_CONF_ETHADDR5,
	0x08,0x06,0x00,0x01,0x08,0x00,0x06,0x04,0x00,0x01,
	ETHERNET_CONF_ETHADDR0,ETHERNET_CONF_ETHADDR1,ETHERNET_CONF_ETHADDR2,ETHERNET_CONF_ETHADDR3,ETHERNET_CONF_ETHADDR4,ETHERNET_CONF_ETHADDR5,
	ETHERNET_CONF_IPADDR0,ETHERNET_CONF_IPADDR1,ETHERNET_CONF_IPADDR2,ETHERNET_CONF_IPADDR3,
	0x00,0x00,0x00,0x00,0x00,0x00,
	ETHERNET_CONF_GATEWAY_ADDR0,ETHERNET_CONF_GATEWAY_ADDR1,ETHERNET_CONF_GATEWAY_ADDR2,ETHERNET_CONF_GATEWAY_ADDR3
};

APP_CONFIG myConfig;
unsigned char hwaddr[6] = { ETHERNET_CONF_ETHADDR0,ETHERNET_CONF_ETHADDR1,ETHERNET_CONF_ETHADDR2,ETHERNET_CONF_ETHADDR3,ETHERNET_CONF_ETHADDR4,ETHERNET_CONF_ETHADDR5 };

/*! buffer for sending packets */

void print_our_ip(void)
{
	char debug[30];
	sprintf(debug,"My IP=%03d.%03d.%03d.%03d\r\n",myConfig.MyIPAddr.v[0],
			myConfig.MyIPAddr.v[1],myConfig.MyIPAddr.v[2],myConfig.MyIPAddr.v[3]);
	LW_ASSERT(TRUE,debug);
}

void tcp_ip_core_start(void)
{
	myConfig.IPDecided=FALSE;
	memset(myConfig.MyIPAddr.v,0xff,4);
	#ifndef STACK_USE_DHCP
		memcpy(myConfig.MyIPAddr.v,my_ip,4);
		myConfig.IPDecided=TRUE;
	#endif
	
	memcpy(myConfig.MyMACAddr.v,hwaddr,6);
	vMACBSetMACAddress(hwaddr);

	print_our_ip();

	TCPInit();
	UDPInit();
}