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Mrea
Ethernet
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Ethernet
Dva ipa: ENC i Wiznet
Wiznet integriraniji i manji,
ENC vei manje integrirani
Mi emo koristiti ENC28j60
ip integrira sve funkcije etherneta osim filtera koji
je u konektoru
Spoj ipa je sa SPI sabirnicom
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Spoj
- ENC SO -> Arduino pin 12 (MISO)
- ENC SI -> Arduino pin 11 (MOSI)
- ENC SCK -> Arduino pin 13 (SCK)
- ENC CS -> Arduino pin 8 (Data pin)
- ENC VCC -> Arduino 5V
- ENC GND -> Arduino Gnd pin
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EtherCard library Inicijalizacija
uint8_t Ethernet::buffer[700]; // configure buffer size to 700
octets
static uint8_t mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 }; //
define (MAC) address
uint8_type nFirmwareVersion ether.begin(sizeof Ethernet::buffer,
mymac);
if(0 == nFirmwareVersion) // handle failure to initiate network
interface
Adresa preko DHCP
if(!ether.dhcpSetup()) // handle failure to obtain IP address
via DHCP
ether.printIp("IP: ", ether.myip); // output IP address to
Serial
ether.printIp("GW: ", ether.gwip); // output gateway address to
Serial
ether.printIp("Mask: ", ether.mymask); // output netmask to
Serial
ether.printIp("DHCP server: ", ether.dhcpip); // output IP
address of the DHCP server
Statika IP adresa
const static uint8_t ip[] = {192,168,0,100}; const static
uint8_t gw[] = {192,168,0,254};
const static uint8_t dns[] = {192,168,0,1};
if(!ether.staticSetup(ip, gw, dns) // handle failure to
configure static IP address
DNS lookup
if(!ether.dnsLookup("google.com")) // handle failure of DNS
lookup
ether.printIp("Server: ", ether.hispip);
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EtherCard library
Slanje UDP paketa
char payload[] = "My UDP message";
uint8_t nSourcePort = 1234;
uint8_t nDestinationPort = 5678;
uint8_t ipDestinationAddress[4];
ether.parseIp(ipDestinationAddress, "192.168.0.200");
ether.sendUdp(payload, sizeof(payload), nSourcePort,
ipDestinationAddress, nDestinationPort);
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DHCP
Povucite adresu
sa DHCP
posluitelja. Ispiite je na serijskom portu
#include
static byte mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 };
byte Ethernet::buffer[500];
BufferFiller bfill;
void setup () {
Serial.begin(9600);
if (ether.begin(sizeof Ethernet::buffer, mymac) == 0)
Serial.println( "Fail");
if(!ether.dhcpSetup()) Serial.println("DHCP failed");
ether.printIp("IP:",ether.myip);
ether.printIp("NETMASK:",ether.mymask);
ether.printIp("GW:",ether.gwip);
ether.printIp("DNS:",ether.dnsip);
}
void loop () {
}
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Zadatak
Poaljite UDP paket na adresu
ureaja, ispiite paket na serijskom
portu
#include
static byte mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 };
static byte myip[] = { 192,168,10,205 };
byte Ethernet::buffer[500];
BufferFiller bfill;
void setup () {
if (ether.begin(sizeof Ethernet::buffer, mymac) == 0)
Serial.println( "Failed to access Ethernet controller");
ether.staticSetup(myip);
ether.hisport = 7777;
ether.udpServerListenOnPort(&udpSerialPrint, 7777);
Serial.begin(9600);
Serial.println("finish setup");
}
void loop () {
ether.packetLoop(ether.packetReceive());
}
//callback that prints received packets to the serial port
void udpSerialPrint(word port, byte ip[4], const char *data,
word len) {
Serial.println(data);
}
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Slanje paketa
Program packet sender
http://packetsender.com/
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UDP server
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Zadatak
Poaljite UDP paket na adresu ureaja, ako ste ga primili vratite
poruku OK
#include
static byte mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 };
static byte myip[] = { 192,168,10,205 };
static byte remoteip[] = { 192,168,10,99 };
byte Ethernet::buffer[500];
BufferFiller bfill;
char string1[3]="OK";
void setup () {
if (ether.begin(sizeof Ethernet::buffer, mymac) == 0)
Serial.println( "Fail ");
ether.staticSetup(myip);
ether.hisport = 7777;
ether.udpServerListenOnPort(&udpSerialPrint, 7777);
Serial.begin(9600);
}
void loop () {
ether.packetLoop(ether.packetReceive());
}
//callback that prints received packets to the serial port
void udpSerialPrint(word port, byte ip[4], const char *data,
word len) {
Serial.println(data);
ether.sendUdp ((char*) string1, 3, 7776, remoteip, 7776);
}
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Zadatak
#include
// ethernet interface mac address, must be unique on the LAN
static byte mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 };
static byte myip[] = { 192,168,1,203 };
byte Ethernet::buffer[500];
BufferFiller bfill;
void setup () {
if (ether.begin(sizeof Ethernet::buffer, mymac) == 0)
Serial.println( "Failed to access Ethernet controller");
ether.staticSetup(myip);
}
void loop () {
word len = ether.packetReceive();
word pos = ether.packetLoop(len);
if (pos) // check if valid tcp data is received
ether.httpServerReply(homePage()); // send
}
static word homePage() {
long t = millis() / 1000;
word h = t / 3600;
byte m = (t / 60) % 60;
byte s = t % 60;
bfill = ether.tcpOffset();
bfill.emit_p(PSTR(
"HTTP/1.0 200 OK\r\n"
"Content-Type: text/html\r\n"
"Pragma: no-cache\r\n\r\n"
""
"RBBB server"
"$D$D:$D$D:$D$D"),
h/10, h%10, m/10, m%10, s/10, s%10);
return bfill.position();
}
Osigurajte web stranicu na statikoj adresi koja odbrojavaKoliko
je vremena proteklo od paljenja ureaja. Vrijeme mora biti prikazano
na razini sekunde, stranica se
Treba osvjeavati na razini sekunde.
