main.c~

Control ENC28J60 codevision

#include <mega64.h>
#include <delay.h>
#include <stdio.h>



#include "enc28j60.h"
#include "ip_arp_udp_tcp.h"
#include "net.h"
//#include "usart.h"




// please modify the following two lines. mac and ip have to be unique
// in your local area network. You can not have the same numbers in
// two devices:
static unsigned char mymac[6] = {0x00,0x55,0x58,0x10,0x00,0x24}; 
static unsigned char myip[4] = {192,168,1,15};
// how did I get the mac addr? Translate the first 3 numbers into ascii is: TUX

unsigned int plen;
#define BUFFER_SIZE 250

unsigned char buffer[BUFFER_SIZE+1];

void setup()
{ 
   enc28j60Init(mymac);
   enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz 
   delay_ms(10);
   enc28j60PhyWrite(PHLCON,0x880);  
   delay_ms(500);
   enc28j60PhyWrite(PHLCON,0x990);  
   delay_ms(500);
   enc28j60PhyWrite(PHLCON,0x880);
   delay_ms(500);
   enc28j60PhyWrite(PHLCON,0x990);
   delay_ms(500);
   enc28j60PhyWrite(PHLCON,0x476);
   delay_ms(100);
   init_ip_arp_udp_tcp(mymac,myip,80);
}


void main()
{
   unsigned int i=0;
   UCSR1A=0x00;UCSR1B=0x18;UCSR1C=0x06;UBRR1H=0x00;UBRR1L=0x0C;
   PORTD.2=1;PORTD.3=1;
   DDRD.3=1;
   
   //putchar1('W');putchar1('e');putchar1('l');putchar1('c');
   //putchar1('o');putchar1('m');putchar1('e');
   setup();
   DDRD.4=1;
   while(1)
   {
      plen = enc28j60PacketReceive(BUFFER_SIZE, &buffer[0]);
      if(plen!=0)
      {
         /*putchar1(' ');
         putchar1((plen/100)%10+'0');
         putchar1((plen/10)%10+'0');
         putchar1(plen%10+'0');
         putchar1(' ');
         for(i=0;i<plen;i++)
         {
            convert(i);
            putchar1(' ');
            convert(buffer[i]);
            putchar1(' ');
            putchar1(' ');
         }
         putchar1('\n');
         putchar1('\r');*/
      }
      
      
      if(plen!=0)
      {         
         if(eth_type_is_arp_and_my_ip(buffer,plen))
         {
            make_arp_answer_from_request(buffer);
         }
         // check if ip packets (icmp or udp) are for us:
         if(eth_type_is_ip_and_my_ip(buffer,plen)!=0)
         {
            if(buffer[IP_PROTO_P]==IP_PROTO_ICMP_V && buffer[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V)
            {
               // a ping packet, let's send pong          
               make_echo_reply_from_request(buffer,plen);               
            }
         } 
      }
   }  
}