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@11:3fb19220d9ec, 2016-12-29 (annotated)

Committer:
cassyarduino
Date:
Thu Dec 29 13:07:19 2016 +0100
Revision:
11:3fb19220d9ec
Parent:
6:f092f8b320ae
Child:
12:aef29fbc4a62
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 11:3fb19220d9ec 19 #if defined(__MBED__)
cassyarduino 11:3fb19220d9ec 20 #include <mbed.h>
cassyarduino 11:3fb19220d9ec 21 #include "mbed/millis.h"
cassyarduino 11:3fb19220d9ec 22 #define delay(x) wait_ms(x)
cassyarduino 11:3fb19220d9ec 23 #define PROGMEM
cassyarduino 11:3fb19220d9ec 24 #include "mbed/Print.h"
cassyarduino 11:3fb19220d9ec 25 #endif
cassyarduino 11:3fb19220d9ec 26
cassyarduino 0:e3fb1267e3c3 27 #include <UIPEthernet.h>
cassyarduino 0:e3fb1267e3c3 28 #include "utility/logging.h"
cassyarduino 0:e3fb1267e3c3 29
cassyarduino 0:e3fb1267e3c3 30 EthernetUDP udp;
cassyarduino 0:e3fb1267e3c3 31 unsigned long next;
cassyarduino 0:e3fb1267e3c3 32
cassyarduino 11:3fb19220d9ec 33 #if defined(ARDUINO)
cassyarduino 0:e3fb1267e3c3 34 void setup() {
cassyarduino 11:3fb19220d9ec 35 #endif
cassyarduino 11:3fb19220d9ec 36 #if defined(__MBED__)
cassyarduino 11:3fb19220d9ec 37 int main() {
cassyarduino 11:3fb19220d9ec 38 #endif
cassyarduino 0:e3fb1267e3c3 39 #if ACTLOGLEVEL>LOG_NONE
cassyarduino 0:e3fb1267e3c3 40 LogObject.begin(9600);
cassyarduino 0:e3fb1267e3c3 41 #endif
cassyarduino 0:e3fb1267e3c3 42
cassyarduino 0:e3fb1267e3c3 43 uint8_t mac[6] = {0x00,0x01,0x02,0x03,0x04,0x05};
cassyarduino 0:e3fb1267e3c3 44
cassyarduino 0:e3fb1267e3c3 45 Ethernet.begin(mac,IPAddress(192,168,0,6));
cassyarduino 0:e3fb1267e3c3 46
cassyarduino 0:e3fb1267e3c3 47 next = millis()+5000;
cassyarduino 11:3fb19220d9ec 48 #if defined(ARDUINO)
cassyarduino 0:e3fb1267e3c3 49 }
cassyarduino 0:e3fb1267e3c3 50
cassyarduino 0:e3fb1267e3c3 51 void loop() {
cassyarduino 11:3fb19220d9ec 52 #endif
cassyarduino 0:e3fb1267e3c3 53
cassyarduino 11:3fb19220d9ec 54 #if defined(__MBED__)
cassyarduino 11:3fb19220d9ec 55 while(true) {
cassyarduino 11:3fb19220d9ec 56 #endif
cassyarduino 0:e3fb1267e3c3 57 int success;
cassyarduino 0:e3fb1267e3c3 58 int len = 0;
cassyarduino 0:e3fb1267e3c3 59
cassyarduino 6:f092f8b320ae 60 if (millis()>next)
cassyarduino 0:e3fb1267e3c3 61 {
cassyarduino 0:e3fb1267e3c3 62 do
cassyarduino 0:e3fb1267e3c3 63 {
cassyarduino 0:e3fb1267e3c3 64 success = udp.beginPacket(IPAddress(192,168,0,1),5000);
cassyarduino 0:e3fb1267e3c3 65 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 0:e3fb1267e3c3 66 LogObject.uart_send_str(F("beginPacket: "));
cassyarduino 0:e3fb1267e3c3 67 LogObject.uart_send_strln(success ? "success" : "failed");
cassyarduino 0:e3fb1267e3c3 68 #endif
cassyarduino 0:e3fb1267e3c3 69 //beginPacket fails if remote ethaddr is unknown. In this case an
cassyarduino 0:e3fb1267e3c3 70 //arp-request is send out first and beginPacket succeeds as soon
cassyarduino 0:e3fb1267e3c3 71 //the arp-response is received.
cassyarduino 6:f092f8b320ae 72 #if defined(ESP8266)
cassyarduino 6:f092f8b320ae 73 wdt_reset();
cassyarduino 6:f092f8b320ae 74 #endif
cassyarduino 0:e3fb1267e3c3 75 }
cassyarduino 6:f092f8b320ae 76 while (!success && (millis()<next));
cassyarduino 6:f092f8b320ae 77 if (success)
cassyarduino 0:e3fb1267e3c3 78 {
cassyarduino 6:f092f8b320ae 79 success = udp.write("hello world from arduino");
cassyarduino 6:f092f8b320ae 80 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 6:f092f8b320ae 81 LogObject.uart_send_str(F("bytes written: "));
cassyarduino 6:f092f8b320ae 82 LogObject.uart_send_decln(success);
cassyarduino 6:f092f8b320ae 83 #endif
cassyarduino 6:f092f8b320ae 84 success = udp.endPacket();
cassyarduino 6:f092f8b320ae 85 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 6:f092f8b320ae 86 LogObject.uart_send_str(F("endPacket: "));
cassyarduino 6:f092f8b320ae 87 LogObject.uart_send_strln(success ? "success" : "failed");
cassyarduino 6:f092f8b320ae 88 #endif
cassyarduino 6:f092f8b320ae 89 do
cassyarduino 6:f092f8b320ae 90 {
cassyarduino 0:e3fb1267e3c3 91 //check for new udp-packet:
cassyarduino 0:e3fb1267e3c3 92 success = udp.parsePacket();
cassyarduino 6:f092f8b320ae 93 #if defined(ESP8266)
cassyarduino 6:f092f8b320ae 94 wdt_reset();
cassyarduino 6:f092f8b320ae 95 #endif
cassyarduino 6:f092f8b320ae 96 }
cassyarduino 6:f092f8b320ae 97 while (!success && (millis()<next));
cassyarduino 6:f092f8b320ae 98 if (success)
cassyarduino 6:f092f8b320ae 99 {
cassyarduino 0:e3fb1267e3c3 100 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 6:f092f8b320ae 101 LogObject.uart_send_str(F("received: '"));
cassyarduino 0:e3fb1267e3c3 102 #endif
cassyarduino 6:f092f8b320ae 103 do
cassyarduino 6:f092f8b320ae 104 {
cassyarduino 6:f092f8b320ae 105 int c = udp.read();
cassyarduino 6:f092f8b320ae 106 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 6:f092f8b320ae 107 LogObject.write(c);
cassyarduino 6:f092f8b320ae 108 #endif
cassyarduino 6:f092f8b320ae 109 len++;
cassyarduino 6:f092f8b320ae 110 }
cassyarduino 6:f092f8b320ae 111 while ((success = udp.available())>0);
cassyarduino 6:f092f8b320ae 112 #if ACTLOGLEVEL>=LOG_INFO
cassyarduino 6:f092f8b320ae 113 LogObject.uart_send_str(F("', "));
cassyarduino 6:f092f8b320ae 114 LogObject.uart_send_dec(len);
cassyarduino 6:f092f8b320ae 115 LogObject.uart_send_strln(F(" bytes"));
cassyarduino 6:f092f8b320ae 116 #endif
cassyarduino 6:f092f8b320ae 117 //finish reading this packet:
cassyarduino 6:f092f8b320ae 118 udp.flush();
cassyarduino 6:f092f8b320ae 119 }
cassyarduino 0:e3fb1267e3c3 120 }
cassyarduino 0:e3fb1267e3c3 121 udp.stop();
cassyarduino 0:e3fb1267e3c3 122 next = millis()+5000;
cassyarduino 0:e3fb1267e3c3 123 }
cassyarduino 0:e3fb1267e3c3 124 }
cassyarduino 11:3fb19220d9ec 125 #if defined(__MBED__)
cassyarduino 11:3fb19220d9ec 126 }
cassyarduino 11:3fb19220d9ec 127 #endif