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/common_functions.c

Committer:
hudakz
Date:
2019-09-07
Revision:
15:53715cc81c63
Parent:
14:7648334eb41b

File content as of revision 15:53715cc81c63:

/*
 * Copyright (c) 2014-2015 ARM Limited. All rights reserved.
 * SPDX-License-Identifier: Apache-2.0
 * Licensed under the Apache License, Version 2.0 (the License); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 * Most functions can be inlined, and definitions are in common_functions.h.
 * Define COMMON_FUNCTIONS_FN before including it to generate external definitions.
 */

#include "mbed_version.h"

#if MBED_MAJOR_VERSION == 2

#define COMMON_FUNCTIONS_FN extern

#include "common_functions.h"

#include <string.h>

/* Returns mask for <split_value> (0-8) most-significant bits of a byte */
static inline uint8_t context_split_mask(uint_fast8_t split_value)
{
    return (uint8_t) - (0x100u >> split_value);
}

bool bitsequal(const uint8_t *a, const uint8_t *b, uint_fast8_t bits)
{
    uint_fast8_t bytes = bits / 8;
    bits %= 8;

    if (bytes && memcmp(a, b, bytes)) {
        return false;
    }

    if (bits) {
        uint_fast8_t split_bit = context_split_mask(bits);
        if ((a[bytes] & split_bit) != (b[bytes] & split_bit)) {
            return false;
        }
    }

    return true;
}

uint8_t *bitcopy(uint8_t *restrict dst, const uint8_t *restrict src, uint_fast8_t bits)
{
    uint_fast8_t bytes = bits / 8;
    bits %= 8;

    if (bytes) {
        dst = (uint8_t *) memcpy(dst, src, bytes) + bytes;
        src += bytes;
    }

    if (bits) {
        uint_fast8_t split_bit = context_split_mask(bits);
        *dst = (*src & split_bit) | (*dst & ~ split_bit);
    }

    return dst;
}

uint8_t *bitcopy0(uint8_t *restrict dst, const uint8_t *restrict src, uint_fast8_t bits)
{
    uint_fast8_t bytes = bits / 8;
    bits %= 8;

    if (bytes) {
        dst = (uint8_t *) memcpy(dst, src, bytes) + bytes;
        src += bytes;
    }

    if (bits) {
        uint_fast8_t split_bit = context_split_mask(bits);
        *dst = (*src & split_bit);
    }

    return dst;
}

#endif