Soem EtherCAT source code analysis attachment 1 (establishment of communication operation environment)

Convenience for programming and debugging needs ,windows The platform is an ideal platform .

The early code analysis will adopt the following platforms ：

System environment ：Win10

Compile environment ：QT5.8.0

Network card communication interface installation package :WpdPack_4_1_2

QT Project code ：

QT += core
QT -= gui

CONFIG += c++11

TARGET = WincapTest
CONFIG += console
CONFIG -= app_bundle

TEMPLATE = app

SOURCES += main.cpp

# The following define makes your compiler emit warnings if you use
# any feature of Qt which as been marked deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

INCLUDEPATH += $$PWD/../Wincap/Include
DEPENDPATH += $$PWD/../Wincap/Lib

LIBS += -L$$PWD/../Wincap/Lib/ -lpacket
LIBS += -L$$PWD/../Wincap/Lib/ -lwpcap

The running source code is as follows ：

#include <QCoreApplication>
#include<QDebug>
#include "pcap.h"

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    pcap_if_t *alldevs;
    pcap_if_t *d;
    int getSize=0;
    char errbuf[PCAP_ERRBUF_SIZE];
    if(pcap_findalldevs(&alldevs,errbuf)==-1)
    {
        qDebug()<<errbuf;
    }
    for(d=alldevs;d;d=d->next)
    {
        qDebug()<<++getSize<<d->name;
        if(d->description)
            qDebug()<<d->description;
        else
            qDebug()<<"No description available ";
    }
    if(0==getSize)
    {
        qDebug()<<"No interfaces found!Make sure WinPcap is installed";
    }
    pcap_freealldevs(alldevs);
    return a.exec();
}

The operation effect is shown below ：

You can see that the computer network card prints out normally , The loaded network card catcher works normally .