qt中tcp给串口进行透传
时间: 2023-12-11 17:46:56 浏览: 53
在Qt中实现TCP给串口透传需要以下步骤:
1. 创建一个TCP服务器和一个串口对象。
2. 在服务器中监听客户端的连接请求,并在连接成功后获取客户端的套接字。
3. 将客户端套接字和串口对象连接起来,实现数据的透传。
4. 在串口接收到数据时,将数据发送到客户端的套接字中。
5. 在客户端接收到数据时,将数据发送到串口中。
下面是一个简单的示例代码:
Server端代码:
```
QTcpServer* tcpServer = new QTcpServer(this);
QSerialPort* serialPort = new QSerialPort(this);
QString portName = "COM1";
serialPort->setPortName(portName);
if(serialPort->open(QIODevice::ReadWrite)){
if(serialPort->setBaudRate(QSerialPort::Baud115200)
&& serialPort->setDataBits(QSerialPort::Data8)
&& serialPort->setParity(QSerialPort::NoParity)
&& serialPort->setStopBits(QSerialPort::OneStop)
&& serialPort->setFlowControl(QSerialPort::NoFlowControl)){
qDebug() << "Serial port opened successfully";
}
}
connect(tcpServer, &QTcpServer::newConnection, [&](){
QTcpSocket* socket = tcpServer->nextPendingConnection();
qDebug() << "Client connected";
connect(socket, &QTcpSocket::readyRead, [&](){
QByteArray data = socket->readAll();
qDebug() << "Received data from client:" << data;
serialPort->write(data);
});
connect(serialPort, &QSerialPort::readyRead, [&](){
QByteArray data = serialPort->readAll();
qDebug() << "Received data from serial port:" << data;
socket->write(data);
});
});
tcpServer->listen(QHostAddress::Any, 9999);
```
Client端代码:
```
QTcpSocket* tcpSocket = new QTcpSocket(this);
connect(tcpSocket, &QTcpSocket::connected, [&](){
qDebug() << "Connected to server";
QByteArray data = "Hello server";
tcpSocket->write(data);
});
connect(tcpSocket, &QTcpSocket::readyRead, [&](){
QByteArray data = tcpSocket->readAll();
qDebug() << "Received data from server:" << data;
});
tcpSocket->connectToHost("localhost", 9999);
```
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