143 lines
5.2 KiB
Python
143 lines
5.2 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Created on 2018年11月6日
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@author: Irony
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@site: https://pyqt5.com, https://github.com/892768447
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@email: 892768447@qq.com
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@file: 串口调试小助手
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@description:
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"""
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from PyQt5.QtCore import pyqtSlot, QIODevice, QByteArray
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from PyQt5.QtSerialPort import QSerialPortInfo, QSerialPort
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from PyQt5.QtWidgets import QWidget
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from UiSerialPort import Ui_FormSerialPort # @UnresolvedImport
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__Author__ = """By: Irony
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QQ: 892768447
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Email: 892768447@qq.com"""
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__Copyright__ = 'Copyright (c) 2018 Irony'
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__Version__ = 1.0
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class Window(QWidget, Ui_FormSerialPort):
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def __init__(self, *args, **kwargs):
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super(Window, self).__init__(*args, **kwargs)
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self.setupUi(self)
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self._serial = QSerialPort(self) # 用于连接串口的对象
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self._serial.readyRead.connect(self.onReadyRead) # 绑定数据读取信号
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# 首先获取可用的串口列表
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self.getAvailablePorts()
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@pyqtSlot()
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def on_buttonConnect_clicked(self):
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# 打开或关闭串口按钮
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if self._serial.isOpen():
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# 如果串口是打开状态则关闭
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self._serial.close()
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self.textBrowser.append('串口已关闭')
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self.buttonConnect.setText('打开串口')
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self.labelStatus.setProperty('isOn', False)
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self.labelStatus.style().polish(self.labelStatus) # 刷新样式
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return
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# 根据配置连接串口
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port = self._ports[self.comboBoxPort.currentText()]
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# self._serial.setPort(port)
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# 根据名字设置串口（也可以用上面的函数）
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self._serial.setPortName(port.systemLocation())
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# 设置波特率
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self._serial.setBaudRate( # 动态获取,类似QSerialPort::Baud9600这样的吧
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getattr(QSerialPort, 'Baud' + self.comboBoxBaud.currentText()))
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# 设置校验位
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self._serial.setParity( # QSerialPort::NoParity
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getattr(QSerialPort, self.comboBoxParity.currentText() + 'Parity'))
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# 设置数据位
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self._serial.setDataBits( # QSerialPort::Data8
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getattr(QSerialPort, 'Data' + self.comboBoxData.currentText()))
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# 设置停止位
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self._serial.setStopBits( # QSerialPort::Data8
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getattr(QSerialPort, self.comboBoxStop.currentText()))
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# NoFlowControl 没有流程控制
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# HardwareControl 硬件流程控制(RTS/CTS)
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# SoftwareControl 软件流程控制(XON/XOFF)
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# UnknownFlowControl 未知控制
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self._serial.setFlowControl(QSerialPort.NoFlowControl)
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# 读写方式打开串口
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ok = self._serial.open(QIODevice.ReadWrite)
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if ok:
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self.textBrowser.append('打开串口成功')
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self.buttonConnect.setText('关闭串口')
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self.labelStatus.setProperty('isOn', True)
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self.labelStatus.style().polish(self.labelStatus) # 刷新样式
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else:
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self.textBrowser.append('打开串口失败')
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self.buttonConnect.setText('打开串口')
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self.labelStatus.setProperty('isOn', False)
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self.labelStatus.style().polish(self.labelStatus) # 刷新样式
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@pyqtSlot()
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def on_buttonSend_clicked(self):
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# 发送消息按钮
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if not self._serial.isOpen():
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print('串口未连接')
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return
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text = self.plainTextEdit.toPlainText()
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if not text:
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return
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text = QByteArray(text.encode('gb2312')) # emmm windows 测试的工具貌似是这个编码
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if self.checkBoxHexSend.isChecked():
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# 如果勾选了hex发送
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text = text.toHex()
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# 发送数据
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print('发送数据:', text)
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self._serial.write(text)
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def onReadyRead(self):
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# 数据接收响应
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if self._serial.bytesAvailable():
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# 当数据可读取时
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# 这里只是简答测试少量数据,如果数据量太多了此处readAll其实并没有读完
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# 需要自行设置粘包协议
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data = self._serial.readAll()
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if self.checkBoxHexView.isChecked():
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# 如果勾选了hex显示
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data = data.toHex()
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data = data.data()
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# 解码显示（中文啥的）
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try:
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self.textBrowser.append('我收到了: ' + data.decode('gb2312'))
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except:
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# 解码失败
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self.textBrowser.append('我收到了: ' + repr(data))
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def getAvailablePorts(self):
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# 获取可用的串口
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self._ports = {} # 用于保存串口的信息
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infos = QSerialPortInfo.availablePorts()
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infos.reverse() # 逆序
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for info in infos:
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# 通过串口名字-->关联串口变量
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self._ports[info.portName()] = info
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self.comboBoxPort.addItem(info.portName())
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def closeEvent(self, event):
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if self._serial.isOpen():
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self._serial.close()
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super(Window, self).closeEvent(event)
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if __name__ == '__main__':
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import sys
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import cgitb
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sys.excepthook = cgitb.enable(1, None, 5, '')
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from PyQt5.QtWidgets import QApplication
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app = QApplication(sys.argv)
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w = Window()
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w.show()
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sys.exit(app.exec_())
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