TM-实现功能.zip_Qt 串口_串口_串口 QT_串口接收程序

#include "mainwindow.h" #include "ui_mainwindow.h" #include "mythread.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); //查找可用的串口 foreach(const QSerialPortInfo &info, QSerialPortInfo::availablePorts()) { QSerialPort serial; serial.setPort(info); if(serial.open(QIODevice::ReadWrite)) { ui->comboBox_chuankouhao->addItem(serial.portName()); serial.close(); } } //设置波特率下拉菜单默认显示第九项 ui->comboBox_botelv->setCurrentIndex(8); ui->comboBox_d_botelv->setCurrentIndex(8); //关闭按钮功能 ui->pushButton_read->setEnabled(false); ui->pushButton_read_multi->setEnabled(false); ui->pushButton_reset->setEnabled(false); ui->pushButton_write->setEnabled(false); ui->pushButton_write_compensation->setEnabled(false); ui->pushButton_write_multi->setEnabled(false); ui->pushButton_read_compensation->setEnabled(false); ui->lineEdit_d_fma->setPlaceholderText(tr("1~200")); ui->lineEdit_s_fma->setPlaceholderText(tr("1~200")); ui->pushButton_caozuo->setText(QObject::tr("打开")); show_status("界面设定成功！"); qDebug() << tr("界面设定成功！"); } MainWindow::~MainWindow() { delete ui; } void MainWindow::getmine(unsigned char *ptr, unsigned char *len, unsigned short num) { unsigned short temp=num; unsigned char i=0; if(temp<9) *len=1; if(temp>9) *len=2; if(temp>99) *len=3; if(temp>999) *len=4; if(temp>9999) *len=5; temp=num; for(i=0;i<*len;i++) { ptr[i]=temp%10+48; temp=temp/10; } } //显示状态 void MainWindow::show_status(QString show_sta) { ui->label_status->setText(show_sta); } //CRC校验 unsigned short MainWindow::ModBusCRC(unsigned char *ptr, unsigned char size) { unsigned short a,b,tmp,CRC16,V; CRC16=0xffff; for (a=0;a<size;a++) { CRC16=*ptr^CRC16; for (b=0;b<8;b++) { tmp=CRC16 & 0x0001; CRC16 =CRC16 >>1; if (tmp) CRC16=CRC16 ^ 0xa001; } ptr++; } V = ((CRC16 & 0x00FF) << 8) | ((CRC16 & 0xFF00) >> 8) ; return CRC16; } //显示发送数据 void MainWindow::show_send_data(unsigned char *send_data,unsigned char send_leng) { QString sstr; for(unsigned char i=0;i<send_leng;i++) { sstr+=QString::number(send_data[i],16).toUpper(); sstr+=" "; } ui->textBrowser_send->append(sstr); qDebug()<<tr("发送的数据：")<<sstr; } //获取从机地址 unsigned int MainWindow::get_slave_address(void) { unsigned char leng; unsigned int temp=0; QByteArray data_temp; if(mIsOpen==true) { //读取目前从机地址 QString s_fma_str=ui->lineEdit_s_fma->text(); data_temp=s_fma_str.toUtf8(); leng=s_fma_str.length(); temp=0; for(unsigned char i=0;i<leng;i++) { temp=temp*10+(data_temp[i]-48); } if(temp==0xff||(temp>=0&&temp<=200)) { qDebug("目前从机地址:%d",temp); } else { temp=0xfe;//地址错误码 show_status("读从机地址错误"); } return temp; } } //清空发送窗口数据 void MainWindow::on_pushButton_clear_send_clicked() { ui->textBrowser_send->clear(); } //清空接收窗口数据 void MainWindow::on_pushButton_clear_rev_clicked() { ui->textBrowser_rev->clear(); } //重启下位机 void MainWindow::on_pushButton_reset_clicked() { unsigned char set_code_multi[30]={0xff},botelv; unsigned char leng; unsigned int temp=0; QByteArray data_temp; if(mIsOpen==true) { //读取目前从机地址 temp=get_slave_address(); set_code_multi[0]=temp; if(temp!=0xfe) { s_fma_right=true; } else { s_fma_right=false; } set_code_multi[1]=write_code; set_code_multi[2]=reset_code; //添加CRC校验 unsigned short mycrc=ModBusCRC(set_code_multi,3); set_code_multi[3]=mycrc; set_code_multi[4]=mycrc>>8; qDebug("CRC1:%x",set_code_multi[3]); qDebug("CRC2:%x",set_code_multi[4]); if((s_fma_right&&d_fma_right)==true) { for(unsigned char i=0;i<5;i++) { QByteArray sendata(1,set_code_multi[i]); serial->write(sendata); qDebug()<<set_code_multi[i]; } //显示要发送的数据 show_send_data(set_code_multi,5); show_status("重启设备"); } else { show_status("地址错误，重启失败"); } } } void MainWindow::on_pushButton_caozuo_clicked() { if(ui->pushButton_caozuo->text()==tr("打开")) { serial = new QSerialPort; //设置串口名 serial->setPortName(ui->comboBox_chuankouhao->currentText()); //打开串口 serial->open(QIODevice::ReadWrite); //设置波特率 serial->setBaudRate(ui->comboBox_botelv->currentText().toInt()); //设置数据位数 serial->setDataBits(QSerialPort::Data8); //设置奇偶校验 serial->setParity(QSerialPort::NoParity); //设置停止位 serial->setStopBits(QSerialPort::OneStop); //设置流控制 serial->setFlowControl(QSerialPort::NoFlowControl); //关闭按钮功能 ui->pushButton_read->setEnabled(true); ui->pushButton_read_multi->setEnabled(true); ui->pushButton_reset->setEnabled(true); ui->pushButton_write->setEnabled(true); ui->pushButton_write_compensation->setEnabled(true); ui->pushButton_write_multi->setEnabled(true); ui->pushButton_read_compensation->setEnabled(true); ui->radioButton_gas->setChecked(true); ui->pushButton_caozuo->setText(tr("关闭")); show_status("串口打开"); mIsOpen=true; //连接信号槽,读取数据 QObject::connect(serial, &QSerialPort::readyRead, this, &MainWindow::Read_Data); } else { //关闭串口 serial->clear(); serial->close(); serial->deleteLater(); //恢复设置使能 //关闭按钮功能 ui->pushButton_read->setEnabled(false); ui->pushButton_read_multi->setEnabled(false); ui->pushButton_reset->setEnabled(false); ui->pushButton_write->setEnabled(false); ui->pushButton_write_compensation->setEnabled(false); ui->pushButton_write_multi->setEnabled(false); ui->pushButton_read_compensation->setEnabled(false); ui->pushButton_caozuo->setText(tr("打开")); show_status("串口关闭"); mIsOpen=false; } } //读从机地址和波特率 void MainWindow::on_pushButton_read_multi_clicked() { unsigned char set_code_multi[30]={0xff}; unsigned char leng; unsigned int temp=0; QByteArray data_temp; if(mIsOpen==true) { //读取目前从机地址 temp=get_slave_address(); if(temp!=0xfe) { set_code_multi[0]=temp; qDebug("目前从机地址:%d",set_code_multi[0]); set_code_multi[1]=read_code; set_code_multi[2]=communication; //添加CRC校验 unsigned short mycrc=ModBusCRC(set_code_multi,3); set_code_multi[3]=mycrc; set_code_multi[4]=mycrc>>8; for(unsigned char i=0;i<5;i++)