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

utility/stoip4.c@15:53715cc81c63, 2019-09-07 (annotated)

Committer:
hudakz
Date:
Sat Sep 07 17:42:42 2019 +0000
Revision:
15:53715cc81c63
Parent:
14:7648334eb41b 
Timeout parameter added for the 'connect' function, SPI speed reduced from 20 to 10 Mb/s, debug messages fixed ...

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hudakz 14:7648334eb41b 1 /*
hudakz 14:7648334eb41b 2 * Copyright (c) 2014-2018 ARM Limited. All rights reserved.
hudakz 14:7648334eb41b 3 * SPDX-License-Identifier: Apache-2.0
hudakz 14:7648334eb41b 4 * Licensed under the Apache License, Version 2.0 (the License); you may
hudakz 14:7648334eb41b 5 * not use this file except in compliance with the License.
hudakz 14:7648334eb41b 6 * You may obtain a copy of the License at
hudakz 14:7648334eb41b 7 *
hudakz 14:7648334eb41b 8 * http://www.apache.org/licenses/LICENSE-2.0
hudakz 14:7648334eb41b 9 *
hudakz 14:7648334eb41b 10 * Unless required by applicable law or agreed to in writing, software
hudakz 14:7648334eb41b 11 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
hudakz 14:7648334eb41b 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
hudakz 14:7648334eb41b 13 * See the License for the specific language governing permissions and
hudakz 14:7648334eb41b 14 * limitations under the License.
hudakz 14:7648334eb41b 15 */
hudakz 14:7648334eb41b 16 #include "mbed_version.h"
hudakz 14:7648334eb41b 17
hudakz 14:7648334eb41b 18 #if MBED_MAJOR_VERSION == 2
hudakz 14:7648334eb41b 19
hudakz 14:7648334eb41b 20 #include <string.h>
hudakz 14:7648334eb41b 21 #include <stdlib.h>
hudakz 14:7648334eb41b 22 #include <stdint.h>
hudakz 14:7648334eb41b 23 #include "common_functions.h"
hudakz 14:7648334eb41b 24 #include "ip4string.h"
hudakz 14:7648334eb41b 25
hudakz 14:7648334eb41b 26 /**
hudakz 14:7648334eb41b 27 * Convert numeric IPv4 address string to a binary.
hudakz 14:7648334eb41b 28 * \param ip4addr IPv4 address in string format.
hudakz 14:7648334eb41b 29 * \param len Length of IPv4 string, maximum of 16..
hudakz 14:7648334eb41b 30 * \param dest buffer for address. MUST be 4 bytes.
hudakz 14:7648334eb41b 31 * \return boolean set to true if conversion succeded, false if it didn't
hudakz 14:7648334eb41b 32 */
hudakz 14:7648334eb41b 33 bool stoip4(const char *ip4addr, size_t len, void *dest)
hudakz 14:7648334eb41b 34 {
hudakz 14:7648334eb41b 35 uint8_t *addr = dest;
hudakz 14:7648334eb41b 36
hudakz 14:7648334eb41b 37 if (len > 16) { // Too long, not possible
hudakz 14:7648334eb41b 38 return false;
hudakz 14:7648334eb41b 39 }
hudakz 14:7648334eb41b 40
hudakz 14:7648334eb41b 41 uint_fast8_t stringLength = 0, byteCount = 0;
hudakz 14:7648334eb41b 42
hudakz 14:7648334eb41b 43 //Iterate over each component of the IP. The exit condition is in the middle of the loop
hudakz 14:7648334eb41b 44 while (true) {
hudakz 14:7648334eb41b 45
hudakz 14:7648334eb41b 46 //No valid character (IPv4 addresses don't have implicit 0, that is x.y..z being read as x.y.0.z)
hudakz 14:7648334eb41b 47 if (stringLength == len || ip4addr[stringLength] < '0' || ip4addr[stringLength] > '9') {
hudakz 14:7648334eb41b 48 return false;
hudakz 14:7648334eb41b 49 }
hudakz 14:7648334eb41b 50
hudakz 14:7648334eb41b 51 //For each component, we convert it to the raw value
hudakz 14:7648334eb41b 52 uint_fast16_t byte = 0;
hudakz 14:7648334eb41b 53 while (stringLength < len && ip4addr[stringLength] >= '0' && ip4addr[stringLength] <= '9') {
hudakz 14:7648334eb41b 54 byte *= 10;
hudakz 14:7648334eb41b 55 byte += ip4addr[stringLength++] - '0';
hudakz 14:7648334eb41b 56
hudakz 14:7648334eb41b 57 //We go over the maximum value for an IPv4 component
hudakz 14:7648334eb41b 58 if (byte > 0xff) {
hudakz 14:7648334eb41b 59 return false;
hudakz 14:7648334eb41b 60 }
hudakz 14:7648334eb41b 61 }
hudakz 14:7648334eb41b 62
hudakz 14:7648334eb41b 63 //Append the component
hudakz 14:7648334eb41b 64 addr[byteCount++] = (uint8_t) byte;
hudakz 14:7648334eb41b 65
hudakz 14:7648334eb41b 66 //If we're at the end, we leave the loop. It's the only way to reach the `true` output
hudakz 14:7648334eb41b 67 if (byteCount == 4) {
hudakz 14:7648334eb41b 68 break;
hudakz 14:7648334eb41b 69 }
hudakz 14:7648334eb41b 70
hudakz 14:7648334eb41b 71 //If the next character is invalid, we return false
hudakz 14:7648334eb41b 72 if (stringLength == len || ip4addr[stringLength++] != '.') {
hudakz 14:7648334eb41b 73 return false;
hudakz 14:7648334eb41b 74 }
hudakz 14:7648334eb41b 75 }
hudakz 14:7648334eb41b 76
hudakz 14:7648334eb41b 77 return stringLength == len || ip4addr[stringLength] == '\0';
hudakz 14:7648334eb41b 78 }
hudakz 14:7648334eb41b 79 #endif