60 lines
1.4 KiB
C++
60 lines
1.4 KiB
C++
#include "qtserialport.h"
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int QtSerialport::OpenSerialPort(string portName)
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{
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QList<QSerialPortInfo> infos = QSerialPortInfo::availablePorts();
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//std::cout<<"number of availablePorts:"<<infos.size()<<std::endl;
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//如果在构造函数中创建m_serial就会出现错误:
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//QObject: Cannot create children for a parent that is in a different thread.
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//(Parent is QSerialPort(0x2e31b20), parent's thread is QThread(0x2e2f130), current thread is QThread(0x2e31110)
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m_serial = new QSerialPort();
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if(m_serial->isOpen())//如果串口已经打开了 先给他关闭了
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{
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m_serial->clear();
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m_serial->close();
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}
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m_serial->setPortName(QString::fromStdString(portName));
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m_serial->open(QIODevice::ReadWrite);
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bool x=SetBaudrate(9600);
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if(x)
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{
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std::cout<<"波特率被成功设置为:"<<m_serial->baudRate()<<std::endl;
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return 0;
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}
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else
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{
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std::cout<<"波特率设置失败!"<<std::endl;
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return 1;
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}
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}
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int QtSerialport::CloseSerialPort()
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{
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m_serial->close();
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return 0;
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}
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int QtSerialport::SetBaudrate(int baudrate)
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{
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bool x=m_serial->setBaudRate(baudrate);
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return 0;
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}
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int QtSerialport::SendData(const char chrMessage[], const unsigned short usLen)
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{
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//QIODevice::write(const char *data, qint64 maxSize)
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m_serial->write(chrMessage, usLen);
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return 0;
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}
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int QtSerialport::ReadData()
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{
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return 0;
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}
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