96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
// Ping a remote server, also uses DHCP and DNS.
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// 2011-06-12 <jc@wippler.nl> http://opensource.org/licenses/mit-license.php
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//
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//-----------------------------------------------------------------
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// Ported to STM32F103 by Vassilis Serasidis on 21 May 2015
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// Home: http://www.serasidis.gr
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// email: avrsite@yahoo.gr
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//
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// PIN Connections (Using STM32F103):
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//
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// ENC28J60 - STM32F103
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// VCC - 3.3V
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// GND - GND
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// SCK - Pin PA5
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// SO - Pin PA6
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// SI - Pin PA7
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// CS - Pin PA8
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//-----------------------------------------------------------------
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//
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//
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#include <SPI.h>
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#include <EtherCard_STM.h>
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// ethernet interface mac address, must be unique on the LAN
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static byte mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 };
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byte Ethernet::buffer[700];
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static uint32_t timer;
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static byte myip[] = { 192,168,1,203 };
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// gateway ip address
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static byte gwip[] = { 192,168,1,1 };
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// domain name server (dns) address
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static byte dnsip[] = { 192,168,1,1 };
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// called when a ping comes in (replies to it are automatic)
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static void gotPinged (byte* ptr) {
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ether.printIp(">>> ping from: ", ptr);
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}
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void setup () {
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Serial.begin(57600);
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delay(10);
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Serial.println("\n[pings]");
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if (ether.begin(sizeof Ethernet::buffer, mymac) == 0)
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Serial.println(("Failed to access Ethernet controller"));
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if (!ether.dhcpSetup()){//If DHCP fails set the static IP, Gateway and DNS IP.
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Serial.println(F("DHCP failed"));
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ether.staticSetup(myip, gwip);
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ether.copyIp(ether.dnsip, dnsip);
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}
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ether.printIp("IP: ", ether.myip);
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ether.printIp("GW: ", ether.gwip);
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//#if 1
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// use DNS to locate the IP address we want to ping
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if (!ether.dnsLookup(PSTR("www.google.com")))
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Serial.println("DNS failed");
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//#else
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//ether.parseIp(ether.hisip, "173.194.112.119");
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//#endif
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ether.printIp("SRV: ", ether.hisip);
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// call this to report others pinging us
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ether.registerPingCallback(gotPinged);
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timer = -9999999; // start timing out right away
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Serial.println();
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}
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void loop () {
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word len = ether.packetReceive(); // go receive new packets
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word pos = ether.packetLoop(len); // respond to incoming pings
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// report whenever a reply to our outgoing ping comes back
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if (len > 0 && ether.packetLoopIcmpCheckReply(ether.hisip)) {
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Serial.print(" ");
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Serial.print((micros() - timer) * 0.001, 3);
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Serial.println(" ms");
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}
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// ping a remote server once every few seconds
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if (micros() - timer >= 5000000) {
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ether.printIp("Pinging: ", ether.hisip);
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timer = micros();
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ether.clientIcmpRequest(ether.hisip);
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}
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} |