qt开发两个串口显示，显示hex ascll

#include "form.h" #include "ui_form.h" Form::Form(QWidget *parent) : QWidget(parent), ui(new Ui::Form) { ui->setupUi(this); system_init(); } Form::~Form() { delete ui; } void Form::system_init() { global_port.setParity(QSerialPort::NoParity); global_port.setDataBits(QSerialPort::Data8); global_port.setStopBits(QSerialPort::OneStop); //定义串口1 global_port.setPortName("COM2"); global_port.setBaudRate(115200); global_port.open(QIODevice::ReadWrite); connect(&global_port,&QSerialPort::readyRead,this,&receive_data); global_port1.setPortName("COM3"); global_port1.setParity(QSerialPort::NoParity); global_port1.setDataBits(QSerialPort::Data8); global_port1.setStopBits(QSerialPort::OneStop); //定义串口2 global_port1.setBaudRate(115200); global_port1.open(QIODevice::ReadWrite); connect(&global_port1,&QSerialPort::readyRead,this,&receive_data1); connect(ui->pushButton,&QPushButton::clicked,this,Form::but_send_data); connect(ui->pushButton_5,&QPushButton::clicked,this,Form::but_QingKongJieShou); } void Form::but_send_data(bool) { QString send_data = ui->lineEdit->text(); QByteArray senddata; if(ui->checkBox->checkState()==Qt::Checked) { String2Hex(send_data,senddata); global_port.write(senddata); qDebug()<< senddata; }else { QByteArray send_array= send_data.toLatin1(); global_port.write(send_array); } } void Form::receive_data() { QByteArray array = global_port.readAll(); if(ui->checkBox->checkState()== Qt::Checked) { ui-> textEdit->insertPlainText(QString(array.toHex(' ').toUpper().append(' '))); }else { QString systime; QString Data = QString::fromLocal8Bit(array); systime = QDateTime::currentDateTime().toString("yyyy-MM-dd hh:mm:ss\n"); ui->textEdit->append(systime + QString("接收：" + Data)); // ui-> plainTextEdit->insertPlainText(QString(array)); } } void Form::receive_data1() { QByteArray array = global_port1.readAll(); if(ui->checkBox->checkState()== Qt::Checked) { ui-> textEdit_2->insertPlainText(QString(array.toHex(' ').toUpper().append(' '))); }else { QString systime; QString Data = QString::fromLocal8Bit(array); systime = QDateTime::currentDateTime().toString("yyyy-MM-dd hh:mm:ss\n"); ui->textEdit_2->append(systime + QString("接收：" + Data)); // ui-> plainTextEdit->insertPlainText(QString(array)); } } void Form::but_QingKongJieShou() { ui -> textEdit->clear(); ui -> textEdit_2 ->clear(); //ui -> plainTextEdit->sertPlainText(""); } void Form::String2Hex(QString str, QByteArray &senddata) { int hexdata,lowhexdata; int hexdatalen = 0; int len = str.length(); senddata.resize(len/2); char lstr,hstr; for(int i=0; i<len; ) { hstr=str[i].toLatin1();//qt5 if(hstr == ' ') { i++; continue; } i++; if(i >= len) break; lstr = str[i].toLatin1();//qt5 hexdata = ConvertHexChar(hstr); lowhexdata = ConvertHexChar(lstr); if((hexdata == 16) || (lowhexdata == 16)) break; else hexdata = hexdata*16+lowhexdata; i++; senddata[hexdatalen] = (char)hexdata; hexdatalen++; } senddata.resize(hexdatalen); } char Form::ConvertHexChar(char ch) { if((ch>='0')&&(ch<='9')) return ch-0x30; else if((ch>= 'A' )&&(ch<= 'F' )) return ch-'A'+10; else if((ch>= 'a' )&&(ch<= 'f' )) return ch-'a'+10; else return (-1); } void Form::String2Hex1(QString str, QByteArray &senddata) { int hexdata,lowhexdata; int hexdatalen = 0; int len = str.length(); senddata.resize(len/2); char lstr,hstr; for(int i=0; i<len; ) { //char lstr, //hstr=str[i].toAscii();//qt4 hstr=str[i].toLatin1();//qt5 if(hstr == ' ') { i++; continue; } i++; if(i >= len) break; lstr = str[i].toLatin1();//qt5 hexdata = ConvertHexChar(hstr); lowhexdata = ConvertHexChar(lstr); if((hexdata == 16) || (lowhexdata == 16)) break; else hexdata = hexdata*16+lowhexdata; i++; senddata[hexdatalen] = (char)hexdata; hexdatalen++; } senddata.resize(hexdatalen); } char Form::ConvertHexChar1(char ch) { if((ch>='0')&&(ch<='9')) return ch-0x30; else if((ch>= 'A' )&&(ch<= 'F' )) return ch-'A'+10; else if((ch>= 'a' )&&(ch<= 'f' )) return ch-'a'+10; else return (-1); } void Form::on_pushButton_6_clicked() { this->close(); } void Form::on_pushButton_7_clicked() { global_port.write(QByteArray(3,(char)0x808080)); }