Zoltan Hudak / UIPEthernet Featured

Mbed library for ENC28J60 Ethernet modules. Full support for TCP/IP and UDP Server, Client and HTTP server (webserver). DHCP and DNS is included.

Dependents:   mBuino_ENC28_MQTT Nucleo_Web_ENC28J60 Nucleo_Web_ENC28J60_ADC Serial_over_Ethernet ... more

Library for ENC28J60 Ethernet modules.

/media/uploads/hudakz/enc28j60_module01.jpg

Ported to mbed from Norbert Truchsess's UIPEthernet library for Arduino. Thank you Norbert!

  • Full support for persistent (streaming) TCP/IP and UDP connections Client and Server each, ARP, ICMP, DHCP and DNS.
  • Works with both Mbed OS 2 and Mbed OS 5.

Usage:

  • Import the library into your project.
  • Add #include "UipEthernet.h" to main.cpp
  • Create one instance of the UipEthernet class initialized with the MAC address you'd like to use and SPI pins of the connected Mbed board.

Example programs:

Import programWebSwitch_ENC28J60

HTTP Server serving a simple webpage which enables to remotely turn a digital output on/off. Compile, download, run and type 'IP_address/secret/' (don't forget the last '/') into your web browser and hit ENTER.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programHTTPServer_Echo_ENC28J60

A simple HTTP server echoing received requests. Ethernet connection is over an ENC28J60 board. Usage: Type the server's IP address into you web browser and hit <ENTER>.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programTcpServer_ENC28J60

Simple TCP/IP Server using the UIPEthernet library for ENC28J60 Ethernet boards.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programTcpClient_ENC28J60

Simple TCP/IP Client using the UIPEthernet library for ENC28J60 Ethernet boards.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programUdpServer_ENC28J60

Simple UDP Server using the UIPEthernet library for ENC28J60 Ethernet boards.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programUdpClient_ENC28J60

Simple UDP Client using the UIPEthernet library for ENC28J60 Ethernet boards.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programMQTT_Hello_ENC28J60

MQTT Client example program. Ethernet connection is via an ENC28J60 module.

Last commit 23 Jul 2020 by Zoltan Hudak

UIPServer.cpp

Committer:
hudakz
Date:
2014-09-15
Revision:
0:5350a66d5279
Child:
2:049ce85163c5

File content as of revision 0:5350a66d5279:

/*
 UIPServer.cpp - Arduino implementation of a uIP wrapper class.
 Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
 All rights reserved.

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
#include "UIPEthernet.h"
#include "UIPServer.h"
extern "C"
{
#include "uip-conf.h"
}
/**
 * @brief
 * @note
 * @param
 * @retval
 */
UIPServer::UIPServer(uint16_t port) :
    _port(htons(port)) {
    UIPEthernet.set_uip_callback(&UIPClient::uip_callback);
}

/**
 * @brief
 * @note
 * @param
 * @retval
 */
UIPClient UIPServer::available(void) {
    UIPEthernet.tick();

    uip_userdata_t*     u;
    for(uint8_t sock = 0; sock < UIP_CONNS; sock++) {
        struct uip_conn*    conn = &uip_conns[sock];
        if(conn->lport == _port && (u = (uip_userdata_t*)conn->appstate.user)) {
            if(UIPClient::_available(u))
                return UIPClient(conn);
        }
    }

    uip_userdata_closed_t **     cc = &UIPClient::closed_conns[0];
    for(uint8_t i = 0; i < UIP_CONNS; i++) {
        if(*cc && (*cc)->lport == _port) {
            if((*cc)->packets_in[0] == NOBLOCK) {
                free(*cc);
                *cc = NULL;
            }
            else
                return UIPClient(*cc);
        }

        cc++;
    }

    return UIPClient();
}

/**
 * @brief
 * @note
 * @param
 * @retval
 */
void UIPServer::begin(void) {
    uip_listen(_port);
    UIPEthernet.tick();
}

/**
 * @brief
 * @note
 * @param
 * @retval
 */
size_t UIPServer::write(uint8_t c) {
    return write(&c, 1);
}

/**
 * @brief
 * @note
 * @param
 * @retval
 */
size_t UIPServer::write(const uint8_t* buf, size_t size) {
    size_t  ret = 0;
    for(int sock = 0; sock < UIP_CONNS; sock++) {
        struct uip_conn*    conn = &uip_conns[sock];
        if(conn->lport == _port && (conn->tcpstateflags != UIP_CLOSE))
            ret = UIPClient::_write(conn, buf, size);
    }

    return ret;
}