myserial_串口助手_Qt串口_QT串口_

#include "serial.h" #include "ui_serial.h" #include <QString> serial::serial(QWidget *parent) : QMainWindow(parent) , ui(new Ui::serial) { ui->setupUi(this); //user system_init(); } serial::~serial() { delete ui; } /*---------------------------------------------- * funtions * -------------------------------------------*/ void serial::system_init() { //port config 默认配置（内置） global_port.setParity(QSerialPort::NoParity); global_port.setDataBits(QSerialPort::Data8); global_port.setStopBits(QSerialPort::OneStop); //connect connect(ui->btn_open,&QPushButton::clicked,this,&serial::btn_open_port); connect(ui->btn_close,&QPushButton::clicked,this,&serial::btn_close_port); connect(ui->btn_send,&QPushButton::clicked,this,&serial::btn_send_data); connect(&global_port,&QSerialPort::readyRead,this,&serial::receive_data); } //slots /*---------------------open---------------------------*/ void serial::btn_open_port(bool) { //qDebug()<< "ok"; /*---------baud name-----------------------*/ //qDebug()<<ui->cmb_port_name->currentIndex();//printf 0-7 switch (ui->cmb_port_name->currentIndex()) { case 0: global_port.setPortName("COM1"); break; case 1: global_port.setPortName("COM2"); break; case 2: global_port.setPortName("COM3"); break; case 3: global_port.setPortName("COM4"); break; case 4: global_port.setPortName("COM5"); break; case 5: global_port.setPortName("COM6"); break; case 6: global_port.setPortName("COM7"); break; default: global_port.setPortName("COM8"); break; } /*----------baud rate------------------------------*/ //qDebug()<<ui->cmb_baud_rate->currentIndex(); switch (ui->cmb_baud_rate->currentIndex()) { case 0: global_port.setBaudRate(QSerialPort::Baud115200); break; case 1: global_port.setBaudRate(QSerialPort::Baud57600); break; case 2: global_port.setBaudRate(QSerialPort::Baud38400); break; case 3: global_port.setBaudRate(QSerialPort::Baud19200); break; case 4: global_port.setBaudRate(QSerialPort::Baud9600); break; case 5: global_port.setBaudRate(QSerialPort::Baud4800); break; case 6: global_port.setBaudRate(QSerialPort::Baud2400); break; default: global_port.setBaudRate(QSerialPort::Baud1200); break; } //open global_port.open(QIODevice::ReadWrite); //打开串口驱动，可以读写。 ui->lab_status->setText("串口已打开"); //串口状态显示 //test //global_port.write("1");//测试输出情况 } /*---------------------close---------------------------*/ void serial::btn_close_port(bool) { global_port.close(); //关闭串口 ui->lab_status->setText("串口已关闭"); //串口状态显示 } /*-------------------hex process-----------------------------*/ void StringToHex(QString str, QByteArray &senddata) //字符串转换为十六进制数据0-F { 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].toLatin1(); if(hstr == ' ') { i++; continue; } i++; if(i >= len) break; lstr = str[i].toLatin1(); 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 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 ch-ch;//不在0-f范围内的会发送成0 } /*---------------------sending data---------------------------*/ void serial::btn_send_data(bool) { QString str; str = ui->lineEdit->text(); //获取文本的方法；存入str中 QByteArray senddata; StringToHex(str,senddata); global_port.write(senddata); } /*--------------------recieve data-------------------------*/ void serial::receive_data() { QByteArray array = global_port.readAll(); //Reads all remaining data from the device, and returns it as a byte array. qDebug()<<array; //控制台显示接收数据 if(ui->checkBox->checkState() == Qt::Checked){ ui->lint_send_data->insertPlainText(QString(array.toHex(' ').toUpper().append(' '))); //Hex转换，同时设置大小写和空格间隔，读取接收数据 }else{ ui->lint_send_data->insertPlainText(QString(array)); } }