87 lines
2.3 KiB
Text
87 lines
2.3 KiB
Text
#include "etherShield.h"
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// please modify the following two lines. mac and ip have to be unique
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// in your local area network. You can not have the same numbers in
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// two devices:
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static uint8_t mymac[6] = {
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0x54,0x55,0x58,0x10,0x00,0x24};
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static uint8_t myip[4] = {
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192,168,1,15};
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// how did I get the mac addr? Translate the first 3 numbers into ascii is: TUX
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#define BUFFER_SIZE 250
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unsigned char buf[BUFFER_SIZE+1];
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uint16_t plen;
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EtherShield es=EtherShield();
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void setup(){
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/*initialize enc28j60*/
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es.ES_enc28j60Init(mymac);
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es.ES_enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
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delay(10);
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/* Magjack leds configuration, see enc28j60 datasheet, page 11 */
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// LEDA=green LEDB=yellow
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//
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// 0x880 is PHLCON LEDB=on, LEDA=on
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// enc28j60PhyWrite(PHLCON,0b0000 1000 1000 00 00);
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es.ES_enc28j60PhyWrite(PHLCON,0x880);
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delay(500);
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//
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// 0x990 is PHLCON LEDB=off, LEDA=off
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// enc28j60PhyWrite(PHLCON,0b0000 1001 1001 00 00);
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es.ES_enc28j60PhyWrite(PHLCON,0x990);
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delay(500);
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//
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// 0x880 is PHLCON LEDB=on, LEDA=on
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// enc28j60PhyWrite(PHLCON,0b0000 1000 1000 00 00);
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es.ES_enc28j60PhyWrite(PHLCON,0x880);
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delay(500);
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//
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// 0x990 is PHLCON LEDB=off, LEDA=off
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// enc28j60PhyWrite(PHLCON,0b0000 1001 1001 00 00);
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es.ES_enc28j60PhyWrite(PHLCON,0x990);
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delay(500);
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//
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// 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
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// enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
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es.ES_enc28j60PhyWrite(PHLCON,0x476);
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delay(100);
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//init the ethernet/ip layer:
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es.ES_init_ip_arp_udp_tcp(mymac,myip,80);
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}
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void loop(){
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plen = es.ES_enc28j60PacketReceive(BUFFER_SIZE, buf);
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/*plen will be unequal to zero if there is a valid packet (without crc error) */
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if(plen!=0){
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if(es.ES_eth_type_is_arp_and_my_ip(buf,plen)){
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es.ES_make_arp_answer_from_request(buf);
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}
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// check if ip packets (icmp or udp) are for us:
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if(es.ES_eth_type_is_ip_and_my_ip(buf,plen)!=0){
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if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V){
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// a ping packet, let's send pong
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es.ES_make_echo_reply_from_request(buf,plen);
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}
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}
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}
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}
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