#include <SPI.h> // needed for Ethernet library communication with the W5100 (Arduino ver>0018)
#include <Ethernet2.h>
#include <utility/w5500.h>
#define RECPKTCOUNT 58
#define SNDPKTCOUNT 60
static int sbuflen=64; // length of data to send
// the MAC-address of myself
static byte myadr [6]={0xAF,0xFE,0xAF,0xFE,0xAF,0XFE};
// the MAC-address of my the linuxCNC-Master
//static byte radr [6]={0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
//static byte radr [6]={0x70,0x85,0xc2,0x89,0x68,0xb7};
//static byte radr [6]={0xb8,0x27,0xeb,0xd6,0x96,0x81};
static byte radr [6]={0xbc,0x5f,0xf4,0x7b,0xce,0x4d };
static int sendcount=0; // packtes received
static int reccount=0; // packts sent
static int lastrec=0; // last received packet-nr
static byte lastC; // last state od imput-port C
// (analog-input used as digital-input)
SOCKET s; // socket that will be opened in RAW mode
static byte rbuf[1500+14];// receive buffer
static byte sbuf[1500+14];// send buffer
static int rbuflen; // length of data to receive
// the setup runs once when you press reset
void setup() {
w5500.init();
w5500.writeSnMR(s, SnMR::MACRAW);
w5500.execCmdSn(s, Sock_OPEN);
// first byte in IN packet
pinMode(0, OUTPUT); // this is an output-pin
pinMode(1, OUTPUT); // this is an output-pin
pinMode(2, OUTPUT); // this is an output-pin
pinMode(3, OUTPUT); // this is an output-pin
pinMode(4, OUTPUT); // this is an output-pin
pinMode(5, OUTPUT); // this is an output-pin
pinMode(6, OUTPUT); // this is an output-pin
pinMode(7, OUTPUT); // this is an output-pin
// second byte in IN packet
pinMode(8, OUTPUT); // this is an output-pin
pinMode(9, OUTPUT); // this is an output-pin
//pinMode(10,OUTPUT); // this is an output-pin
// first byte in OUT packet
pinMode(A0, INPUT_PULLUP); // set pull-up on analog pin 0
pinMode(A1, INPUT_PULLUP); // set pull-up on analog pin 1
pinMode(A2, INPUT_PULLUP); // set pull-up on analog pin 2
pinMode(A3, INPUT_PULLUP); // set pull-up on analog pin 3
pinMode(A4, INPUT_PULLUP); // set pull-up on analog pin 4
pinMode(A5, INPUT_PULLUP); // set pull-up on analog pin 5
pinMode(A6, INPUT_PULLUP); // set pull-up on analog pin 6
pinMode(A7, INPUT_PULLUP); // set pull-up on analog pin 7
// put MAC-addresses into send-buffer
for (int i=0; i<6; i++) sbuf[i] =radr [i];
for (int i=0; i<6; i++) sbuf[i+6]=myadr[i];
}
void send_pkt(){
memcpy(sbuf+SNDPKTCOUNT,&sendcount,2);
// sbuf[20]=0x21;
// sending packet // only for DEBUGING
w5500.send_data_processing(s, sbuf, sbuflen);
w5500.execCmdSn(s, Sock_SEND_MAC);
sendcount++;
}
// the loop routine runs over and over again forever:
void loop() {
unsigned int RxPacketSize;
// check if we have received something
rbuflen = w5500.getRXReceivedSize(s);
if (rbuflen>0){
w5500.recv_data_processing(s, rbuf, 2); // read the first two bytes
w5500.execCmdSn(s, Sock_RECV); // that tell us the lenght of the packet + 2
RxPacketSize = rbuf[0]; // hight byte
RxPacketSize <<= 8; //
RxPacketSize |=( rbuf[1] & 0x00FF); // low byte
RxPacketSize -= 2; // packet lenght
w5500.recv_data_processing(s, rbuf, RxPacketSize); // read the packet
w5500.execCmdSn(s, Sock_RECV);
// is this a packet for myself?
if (rbuf[0]==myadr[0])if (rbuf[1]==myadr[1])
if (rbuf[2]==myadr[2])if (rbuf[3]==myadr[3])
if (rbuf[4]==myadr[4])if (rbuf[5]==myadr[5])
if (rbuf[6] ==radr[0]) if (rbuf[7] ==radr[1])
if (rbuf[8] ==radr[2]) if (rbuf[9] ==radr[3])
if (rbuf[10]==radr[4]) if (rbuf[11]==radr[5])
{
reccount++; // increase number of sent packetes
for (int i=0; i<6; i++) sbuf[i] =radr [i];
for (int i=0; i<6; i++) sbuf[i+6]=myadr[i];
sbuf[23]=sendcount;
sbuf[24]=sendcount;
sbuf[25]=0x21;
PORTD=rbuf[17]; // set the output-pins (first 8 bit)
// now set the first 3 bits of next port
// (pin-nr.>10 ar used by ethernet-shield)
digitalWrite(8, (rbuf[18]&1));
digitalWrite(9 ,(rbuf[18]&2));
memcpy(sbuf+RECPKTCOUNT,&reccount,2);
} // packet was for me....
// my work is done
} //sth. received
// send acc if packet received
if (lastrec!=reccount){
send_pkt();
lastrec=reccount;
}
// the pin-values of A0-A7 changed?
if (lastC!=PINC){
sbuf[17]=PINC;
lastC=PINC;
send_pkt();
}
}
[etheraw.ino|attachment](upload://vz8v4PTYZguDxrVohEl4wSMuhbR.ino) (4.5 KB)
Your buffers are way too big for an Uno.
Yep.
You can use a max of 2048 bytes. So, you can change your buffers to a max of 966+14 for each buffer.
1 Like
@virencq, your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advise on) your project 
See About the Installation & Troubleshooting category.
I also see problems with pins.
pin0 and pin1 can't be used, because they are already used by the USB-Serial chip.
Various other pins in the sketch are used by the W5100 (W5500?) board/chip.
Leo..
Thanks, Sir,
It works my .ino compiled without errors. Let me check for further any complicacy.
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