cassyarduino cassyarduino / UIPEthernet

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examples/UdpServer/UdpServer.ino@39:deeb00b81cc9, 2018-01-23 (annotated)

Committer:
cassyarduino
Date:
Tue Jan 23 15:08:43 2018 +0100
Revision:
39:deeb00b81cc9
Parent:
12:aef29fbc4a62 
Release: 2.0.4

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cassyarduino 0:e3fb1267e3c3 1 /*
cassyarduino 0:e3fb1267e3c3 2 * UIPEthernet UdpServer example.
cassyarduino 0:e3fb1267e3c3 3 *
cassyarduino 0:e3fb1267e3c3 4 * UIPEthernet is a TCP/IP stack that can be used with a enc28j60 based
cassyarduino 0:e3fb1267e3c3 5 * Ethernet-shield.
cassyarduino 0:e3fb1267e3c3 6 *
cassyarduino 0:e3fb1267e3c3 7 * UIPEthernet uses the fine uIP stack by Adam Dunkels <adam@sics.se>
cassyarduino 0:e3fb1267e3c3 8 *
cassyarduino 0:e3fb1267e3c3 9 * -----------------
cassyarduino 0:e3fb1267e3c3 10 *
cassyarduino 0:e3fb1267e3c3 11 * This UdpServer example sets up a udp-server at 192.168.0.6 on port 5000.
cassyarduino 0:e3fb1267e3c3 12 * send packet via upd to test
cassyarduino 0:e3fb1267e3c3 13 *
cassyarduino 0:e3fb1267e3c3 14 * Copyright (C) 2013 by Norbert Truchsess (norbert.truchsess@t-online.de)
cassyarduino 0:e3fb1267e3c3 15 */
cassyarduino 0:e3fb1267e3c3 16
cassyarduino 11:3fb19220d9ec 17 #if defined(__MBED__)
cassyarduino 11:3fb19220d9ec 18 #include <mbed.h>
cassyarduino 11:3fb19220d9ec 19 #include "mbed/millis.h"
cassyarduino 11:3fb19220d9ec 20 #define delay(x) wait_ms(x)
cassyarduino 11:3fb19220d9ec 21 #define PROGMEM
cassyarduino 11:3fb19220d9ec 22 #include "mbed/Print.h"
cassyarduino 11:3fb19220d9ec 23 #endif
cassyarduino 11:3fb19220d9ec 24
cassyarduino 0:e3fb1267e3c3 25 #include <UIPEthernet.h>
cassyarduino 0:e3fb1267e3c3 26 #include "utility/logging.h"
cassyarduino 0:e3fb1267e3c3 27
cassyarduino 0:e3fb1267e3c3 28 EthernetUDP udp;
cassyarduino 0:e3fb1267e3c3 29
cassyarduino 11:3fb19220d9ec 30 #if defined(ARDUINO)
cassyarduino 0:e3fb1267e3c3 31 void setup() {
cassyarduino 11:3fb19220d9ec 32 #endif
cassyarduino 11:3fb19220d9ec 33 #if defined(__MBED__)
cassyarduino 11:3fb19220d9ec 34 int main() {
cassyarduino 11:3fb19220d9ec 35 #endif
cassyarduino 0:e3fb1267e3c3 36 #if ACTLOGLEVEL>LOG_NONE
cassyarduino 12:aef29fbc4a62 37 #if defined(ARDUINO)
cassyarduino 12:aef29fbc4a62 38 LogObject.begin(9600);
cassyarduino 12:aef29fbc4a62 39 #endif
cassyarduino 12:aef29fbc4a62 40 #if defined(__MBED__)
cassyarduino 12:aef29fbc4a62 41 Serial LogObject(SERIAL_TX,SERIAL_RX);
cassyarduino 12:aef29fbc4a62 42 #endif
cassyarduino 0:e3fb1267e3c3 43 #endif
cassyarduino 0:e3fb1267e3c3 44
cassyarduino 0:e3fb1267e3c3 45 uint8_t mac[6] = {0x00,0x01,0x02,0x03,0x04,0x05};
cassyarduino 0:e3fb1267e3c3 46
cassyarduino 0:e3fb1267e3c3 47 Ethernet.begin(mac,IPAddress(192,168,0,6));
cassyarduino 0:e3fb1267e3c3 48
cassyarduino 0:e3fb1267e3c3 49 int success = udp.begin(5000);
cassyarduino 0:e3fb1267e3c3 50
cassyarduino 0:e3fb1267e3c3 51 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 0:e3fb1267e3c3 52 LogObject.uart_send_str(F("initialize: "));
cassyarduino 0:e3fb1267e3c3 53 LogObject.uart_send_strln(success ? "success" : "failed");
cassyarduino 0:e3fb1267e3c3 54 #endif
cassyarduino 11:3fb19220d9ec 55 #if defined(ARDUINO)
cassyarduino 0:e3fb1267e3c3 56 }
cassyarduino 0:e3fb1267e3c3 57
cassyarduino 0:e3fb1267e3c3 58 void loop() {
cassyarduino 11:3fb19220d9ec 59 #endif
cassyarduino 0:e3fb1267e3c3 60
cassyarduino 11:3fb19220d9ec 61 #if defined(__MBED__)
cassyarduino 11:3fb19220d9ec 62 while(true) {
cassyarduino 11:3fb19220d9ec 63 #endif
cassyarduino 0:e3fb1267e3c3 64 //check for new udp-packet:
cassyarduino 0:e3fb1267e3c3 65 int size = udp.parsePacket();
cassyarduino 0:e3fb1267e3c3 66 if (size > 0) {
cassyarduino 0:e3fb1267e3c3 67 do
cassyarduino 0:e3fb1267e3c3 68 {
cassyarduino 0:e3fb1267e3c3 69 char* msg = (char*)malloc(size+1);
cassyarduino 0:e3fb1267e3c3 70 int len = udp.read(msg,size+1);
cassyarduino 0:e3fb1267e3c3 71 msg[len]=0;
cassyarduino 0:e3fb1267e3c3 72 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 0:e3fb1267e3c3 73 LogObject.uart_send_str(F("received: '"));
cassyarduino 0:e3fb1267e3c3 74 LogObject.uart_send_str(msg);
cassyarduino 0:e3fb1267e3c3 75 #endif
cassyarduino 0:e3fb1267e3c3 76 free(msg);
cassyarduino 0:e3fb1267e3c3 77 }
cassyarduino 0:e3fb1267e3c3 78 while ((size = udp.available())>0);
cassyarduino 0:e3fb1267e3c3 79 //finish reading this packet:
cassyarduino 0:e3fb1267e3c3 80 udp.flush();
cassyarduino 0:e3fb1267e3c3 81 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 0:e3fb1267e3c3 82 LogObject.uart_send_strln(F("'"));
cassyarduino 0:e3fb1267e3c3 83 #endif
cassyarduino 0:e3fb1267e3c3 84 int success;
cassyarduino 0:e3fb1267e3c3 85 do
cassyarduino 0:e3fb1267e3c3 86 {
cassyarduino 0:e3fb1267e3c3 87 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 0:e3fb1267e3c3 88 LogObject.uart_send_str(F("remote ip: "));
cassyarduino 12:aef29fbc4a62 89 #if defined(ARDUINO)
cassyarduino 12:aef29fbc4a62 90 LogObject.println(udp.remoteIP());
cassyarduino 12:aef29fbc4a62 91 #endif
cassyarduino 12:aef29fbc4a62 92 #if defined(__MBED__)
cassyarduino 12:aef29fbc4a62 93 LogObject.printf("%d.%d.%d.%d",udp.remoteIP()[0],udp.remoteIP()[1],udp.remoteIP()[2],udp.remoteIP()[3]);
cassyarduino 12:aef29fbc4a62 94 #endif
cassyarduino 0:e3fb1267e3c3 95 LogObject.uart_send_str(F("remote port: "));
cassyarduino 12:aef29fbc4a62 96 LogObject.uart_send_decln(udp.remotePort());
cassyarduino 0:e3fb1267e3c3 97 #endif
cassyarduino 0:e3fb1267e3c3 98 //send new packet back to ip/port of client. This also
cassyarduino 0:e3fb1267e3c3 99 //configures the current connection to ignore packets from
cassyarduino 0:e3fb1267e3c3 100 //other clients!
cassyarduino 0:e3fb1267e3c3 101 success = udp.beginPacket(udp.remoteIP(),udp.remotePort());
cassyarduino 0:e3fb1267e3c3 102 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 0:e3fb1267e3c3 103 LogObject.uart_send_str(F("beginPacket: "));
cassyarduino 0:e3fb1267e3c3 104 LogObject.uart_send_strln(success ? "success" : "failed");
cassyarduino 0:e3fb1267e3c3 105 #endif
cassyarduino 0:e3fb1267e3c3 106 //beginPacket fails if remote ethaddr is unknown. In this case an
cassyarduino 0:e3fb1267e3c3 107 //arp-request is send out first and beginPacket succeeds as soon
cassyarduino 0:e3fb1267e3c3 108 //the arp-response is received.
cassyarduino 0:e3fb1267e3c3 109 }
cassyarduino 0:e3fb1267e3c3 110 while (!success);
cassyarduino 0:e3fb1267e3c3 111
cassyarduino 0:e3fb1267e3c3 112 success = udp.println(F("hello world from arduino"));
cassyarduino 0:e3fb1267e3c3 113
cassyarduino 0:e3fb1267e3c3 114 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 0:e3fb1267e3c3 115 LogObject.uart_send_str(F("bytes written: "));
cassyarduino 0:e3fb1267e3c3 116 LogObject.uart_send_decln(success);
cassyarduino 0:e3fb1267e3c3 117 #endif
cassyarduino 0:e3fb1267e3c3 118
cassyarduino 0:e3fb1267e3c3 119 success = udp.endPacket();
cassyarduino 0:e3fb1267e3c3 120
cassyarduino 0:e3fb1267e3c3 121 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 0:e3fb1267e3c3 122 LogObject.uart_send_str(F("endPacket: "));
cassyarduino 0:e3fb1267e3c3 123 LogObject.uart_send_strln(success ? "success" : "failed");
cassyarduino 0:e3fb1267e3c3 124 #endif
cassyarduino 0:e3fb1267e3c3 125
cassyarduino 0:e3fb1267e3c3 126 udp.stop();
cassyarduino 0:e3fb1267e3c3 127 //restart with new connection to receive packets from other clients
cassyarduino 0:e3fb1267e3c3 128 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 0:e3fb1267e3c3 129 LogObject.uart_send_str(F("restart connection: "));
cassyarduino 0:e3fb1267e3c3 130 LogObject.uart_send_strln(udp.begin(5000) ? "success" : "failed");
cassyarduino 0:e3fb1267e3c3 131 #endif
cassyarduino 0:e3fb1267e3c3 132 }
cassyarduino 0:e3fb1267e3c3 133 }
cassyarduino 11:3fb19220d9ec 134 #if defined(__MBED__)
cassyarduino 11:3fb19220d9ec 135 }
cassyarduino 11:3fb19220d9ec 136 #endif