cassyarduino cassyarduino / UIPEthernet

UIPEthernet library for Arduino IDE, Eclipse with arduino plugin and MBED/SMeshStudio (AVR,STM32F,ESP8266,Intel ARC32,Nordic nRF51,Teensy boards,Realtek Ameba(RTL8195A,RTL8710)), ENC28j60 network chip. Compatible with Wiznet W5100 Ethernet library API. Compiled and tested on Nucleo-F302R8. Master repository is: https://github.com/UIPEthernet/UIPEthernet/

examples/UdpClient/UdpClient.ino@6:f092f8b320ae, 2016-12-27 (annotated)

Committer:
cassyarduino
Date:
Tue Dec 27 13:45:01 2016 +0100
Revision:
6:f092f8b320ae
Parent:
0:e3fb1267e3c3
Child:
11:3fb19220d9ec
Changes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cassyarduino 0:e3fb1267e3c3 1 /*
cassyarduino 0:e3fb1267e3c3 2 * UIPEthernet UdpClient 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 UdpClient example tries to send a packet via udp to 192.168.0.1
cassyarduino 0:e3fb1267e3c3 12 * on port 5000 every 5 seconds. After successfully sending the packet it
cassyarduino 0:e3fb1267e3c3 13 * waits for up to 5 seconds for a response on the local port that has been
cassyarduino 0:e3fb1267e3c3 14 * implicitly opened when sending the packet.
cassyarduino 0:e3fb1267e3c3 15 *
cassyarduino 0:e3fb1267e3c3 16 * Copyright (C) 2013 by Norbert Truchsess (norbert.truchsess@t-online.de)
cassyarduino 0:e3fb1267e3c3 17 */
cassyarduino 0:e3fb1267e3c3 18
cassyarduino 0:e3fb1267e3c3 19 #include <UIPEthernet.h>
cassyarduino 0:e3fb1267e3c3 20 #include "utility/logging.h"
cassyarduino 0:e3fb1267e3c3 21
cassyarduino 0:e3fb1267e3c3 22 EthernetUDP udp;
cassyarduino 0:e3fb1267e3c3 23 unsigned long next;
cassyarduino 0:e3fb1267e3c3 24
cassyarduino 0:e3fb1267e3c3 25 void setup() {
cassyarduino 0:e3fb1267e3c3 26
cassyarduino 0:e3fb1267e3c3 27 #if ACTLOGLEVEL>LOG_NONE
cassyarduino 0:e3fb1267e3c3 28 LogObject.begin(9600);
cassyarduino 0:e3fb1267e3c3 29 #endif
cassyarduino 0:e3fb1267e3c3 30
cassyarduino 0:e3fb1267e3c3 31 uint8_t mac[6] = {0x00,0x01,0x02,0x03,0x04,0x05};
cassyarduino 0:e3fb1267e3c3 32
cassyarduino 0:e3fb1267e3c3 33 Ethernet.begin(mac,IPAddress(192,168,0,6));
cassyarduino 0:e3fb1267e3c3 34
cassyarduino 0:e3fb1267e3c3 35 next = millis()+5000;
cassyarduino 0:e3fb1267e3c3 36 }
cassyarduino 0:e3fb1267e3c3 37
cassyarduino 0:e3fb1267e3c3 38 void loop() {
cassyarduino 0:e3fb1267e3c3 39
cassyarduino 0:e3fb1267e3c3 40 int success;
cassyarduino 0:e3fb1267e3c3 41 int len = 0;
cassyarduino 0:e3fb1267e3c3 42
cassyarduino 6:f092f8b320ae 43 if (millis()>next)
cassyarduino 0:e3fb1267e3c3 44 {
cassyarduino 0:e3fb1267e3c3 45 do
cassyarduino 0:e3fb1267e3c3 46 {
cassyarduino 0:e3fb1267e3c3 47 success = udp.beginPacket(IPAddress(192,168,0,1),5000);
cassyarduino 0:e3fb1267e3c3 48 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 0:e3fb1267e3c3 49 LogObject.uart_send_str(F("beginPacket: "));
cassyarduino 0:e3fb1267e3c3 50 LogObject.uart_send_strln(success ? "success" : "failed");
cassyarduino 0:e3fb1267e3c3 51 #endif
cassyarduino 0:e3fb1267e3c3 52 //beginPacket fails if remote ethaddr is unknown. In this case an
cassyarduino 0:e3fb1267e3c3 53 //arp-request is send out first and beginPacket succeeds as soon
cassyarduino 0:e3fb1267e3c3 54 //the arp-response is received.
cassyarduino 6:f092f8b320ae 55 #if defined(ESP8266)
cassyarduino 6:f092f8b320ae 56 wdt_reset();
cassyarduino 6:f092f8b320ae 57 #endif
cassyarduino 0:e3fb1267e3c3 58 }
cassyarduino 6:f092f8b320ae 59 while (!success && (millis()<next));
cassyarduino 6:f092f8b320ae 60 if (success)
cassyarduino 0:e3fb1267e3c3 61 {
cassyarduino 6:f092f8b320ae 62 success = udp.write("hello world from arduino");
cassyarduino 6:f092f8b320ae 63 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 6:f092f8b320ae 64 LogObject.uart_send_str(F("bytes written: "));
cassyarduino 6:f092f8b320ae 65 LogObject.uart_send_decln(success);
cassyarduino 6:f092f8b320ae 66 #endif
cassyarduino 6:f092f8b320ae 67 success = udp.endPacket();
cassyarduino 6:f092f8b320ae 68 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 6:f092f8b320ae 69 LogObject.uart_send_str(F("endPacket: "));
cassyarduino 6:f092f8b320ae 70 LogObject.uart_send_strln(success ? "success" : "failed");
cassyarduino 6:f092f8b320ae 71 #endif
cassyarduino 6:f092f8b320ae 72 do
cassyarduino 6:f092f8b320ae 73 {
cassyarduino 0:e3fb1267e3c3 74 //check for new udp-packet:
cassyarduino 0:e3fb1267e3c3 75 success = udp.parsePacket();
cassyarduino 6:f092f8b320ae 76 #if defined(ESP8266)
cassyarduino 6:f092f8b320ae 77 wdt_reset();
cassyarduino 6:f092f8b320ae 78 #endif
cassyarduino 6:f092f8b320ae 79 }
cassyarduino 6:f092f8b320ae 80 while (!success && (millis()<next));
cassyarduino 6:f092f8b320ae 81 if (success)
cassyarduino 6:f092f8b320ae 82 {
cassyarduino 0:e3fb1267e3c3 83 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 6:f092f8b320ae 84 LogObject.uart_send_str(F("received: '"));
cassyarduino 0:e3fb1267e3c3 85 #endif
cassyarduino 6:f092f8b320ae 86 do
cassyarduino 6:f092f8b320ae 87 {
cassyarduino 6:f092f8b320ae 88 int c = udp.read();
cassyarduino 6:f092f8b320ae 89 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 6:f092f8b320ae 90 LogObject.write(c);
cassyarduino 6:f092f8b320ae 91 #endif
cassyarduino 6:f092f8b320ae 92 len++;
cassyarduino 6:f092f8b320ae 93 }
cassyarduino 6:f092f8b320ae 94 while ((success = udp.available())>0);
cassyarduino 6:f092f8b320ae 95 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 6:f092f8b320ae 96 LogObject.uart_send_str(F("', "));
cassyarduino 6:f092f8b320ae 97 LogObject.uart_send_dec(len);
cassyarduino 6:f092f8b320ae 98 LogObject.uart_send_strln(F(" bytes"));
cassyarduino 6:f092f8b320ae 99 #endif
cassyarduino 6:f092f8b320ae 100 //finish reading this packet:
cassyarduino 6:f092f8b320ae 101 udp.flush();
cassyarduino 6:f092f8b320ae 102 }
cassyarduino 0:e3fb1267e3c3 103 }
cassyarduino 0:e3fb1267e3c3 104 udp.stop();
cassyarduino 0:e3fb1267e3c3 105 next = millis()+5000;
cassyarduino 0:e3fb1267e3c3 106 }
cassyarduino 0:e3fb1267e3c3 107 }