SmartPDCode/Qt/SmartPDU_QT/USB485_Ctrl.cpp

#include "USB485_Ctrl.h"
#include <QMessageBox>
Usb485_Ctrl::Usb485_Ctrl(QObject *parent) : QObject(parent)
{

}

void Usb485_Ctrl::SerialPortInit()
{
    Data_Ctrl::getData()->serialPort = new QSerialPort(this);//申请内存,并设置父对象
}

int Usb485_Ctrl::SeralPortCtrl(int nOpenClose)
{
    if(nOpenClose==Seral_Close)
    {
        if(Data_Ctrl::getData()->serialPort->isOpen())                                        // 如果串口打开，则将其关闭
        {
            Data_Ctrl::getData()->serialPort->clear();
            Data_Ctrl::getData()->serialPort->close();
            return 0;
        }
        return 0;//未开启
    }else
    {
        //当前选择的串口名字
        Data_Ctrl::getData()->serialPort->setPortName(Data_Ctrl::getData()->m_strSelectUSBName);
        //用ReadWrite 的模式尝试打开串口，无法收发数据时，发出警告
        // 参数配置，波特率
        Data_Ctrl::getData()->serialPort->setBaudRate(Data_Ctrl::getData()->baudRate);
        // 校验位，校验默认选择无
        Data_Ctrl::getData()->serialPort->setParity(Data_Ctrl::getData()->checkBits);
        // 数据位，数据位默认选择8位
        Data_Ctrl::getData()->serialPort->setDataBits(Data_Ctrl::getData()->dataBits);
        // 停止位，停止位默认选择1位
        Data_Ctrl::getData()->serialPort->setStopBits(Data_Ctrl::getData()->stopBits);
        if(!Data_Ctrl::getData()->serialPort->open(QIODevice::ReadWrite))
        {
            return -1;
        }
        return 0;
    }
}