Svenska ElektronikForumet

Kod: Markera allt

void eth_init(void){

    uint16_t plen=0;
	int8_t i;

    enc28j60Init(mymac);
    enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
    _delay_loop_1(0); // 60us

    enc28j60PhyWrite(PHLCON,0x476);
    if(ethrefresh == 2){
    	FB_clear();
    	FB_writestringram(2,0,"Waiting for");
		FB_writestringram(2,8,"ETH link up");
		LCD_update(1);
    }
	_delay_ms(1000);
    while (enc28j60linkup()==0){
            // wait a bit then try again:
            plen=0xFFF;
            while(plen){
                    _delay_loop_1(0); // 60us
                    plen--;
            }
    }

    // we need the timer for the dhcp-resend tick:

    if(ethrefresh == 2){
		FB_clear();
		FB_writestringram(0,0,"Waiting for");
		FB_writestringram(0,8,"DHCP answer");
		LCD_update(1);
    }

    timer_init();
    sei(); // interrupt on, clock starts ticking now

    // DHCP handling. Get the initial IP
    i=0;
    init_mac(mymac);
    while(i==0){
            plen=enc28j60PacketReceive(BUFFER_SIZE, buf);
            buf[BUFFER_SIZE]='\0';
            i=packetloop_dhcp_initial_ip_assignment(buf,plen,mymac[5]);
    }
    // we have an IP:
    dhcp_get_my_ip(myip,netmask,gwip);
    client_ifconfig(myip,netmask); // we do not need to call init_udp_or_www_server if the client is already configured and we can use the server functions now.

    mk_net_str(gStrbuf,myip,4,'.',10);
	if(ethrefresh == 2){
	    FB_clear();
		FB_writestringram(0,0,"My IP:");
		FB_writestringram(0,8,gStrbuf);
		LCD_update(0);
		delay_sec=2; //we use this to change the display only in 5 sec from now
	}
	// web server listen port:
    www_server_port(MYWWWPORT);

    ethrefresh = 0;

}