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| import datetime import sys import os import subprocess import time import serial import serial.tools.list_ports from PyQt6.QtWidgets import ( QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout, QGridLayout, QTabWidget, QGroupBox, QLabel, QLineEdit, QPushButton, QComboBox, QTextEdit, QFileDialog, QMessageBox, QStatusBar, QCheckBox, QSizePolicy ) from PyQt6.QtCore import QThread, pyqtSignal, QObject, Qt, QTimer, QMetaObject, pyqtSlot from PyQt6.QtGui import QTextCursor
DFU_VID_PID = "0483:df11" DEFAULT_ALT_SETTING = 0 DEFAULT_FLASH_ADDRESS = "0x08000000" DFU_UTIL_COMMAND = "dfu-util"
def get_time_stamp(): ct = time.time() local_time = time.localtime(ct) data_head = time.strftime("%Y-%m-%d %H:%M:%S", local_time) data_secs = (ct - int(ct)) * 1000 time_stamp = "%s.%03d" % (data_head, data_secs) return time_stamp
class SerialWorker(QObject): """处理串口读写的 Worker 对象""" data_received = pyqtSignal(bytes) error_occurred = pyqtSignal(str) finished = pyqtSignal()
def __init__(self, serial_instance): super().__init__() self.ser = serial_instance self._is_running = False
@pyqtSlot() def run(self): """开始循环读取串口数据""" self._is_running = True while self._is_running: try: if self.ser and self.ser.is_open: if self.ser.in_waiting > 0: data = self.ser.read(self.ser.in_waiting) if data: print(type(data)) self.data_received.emit(data) else: QThread.msleep(10) else: if self._is_running: if self._is_running: self.error_occurred.emit("串口似乎已关闭") self._is_running = False
except serial.SerialException as e: if self._is_running: self.error_occurred.emit(f"串口读取错误: {e}") self._is_running = False except Exception as e: if self._is_running: self.error_occurred.emit(f"读取线程未知错误: {e}") self._is_running = False
self.ser = None self.finished.emit()
@pyqtSlot() def stop(self): """请求停止读取循环""" self._is_running = False
class DfuWorker(QObject): """处理 DFU 烧录命令的 Worker 对象""" progress_update = pyqtSignal(str) finished = pyqtSignal(int, str)
def __init__(self, command_list): super().__init__() self.command = command_list self._is_running = False self.process = None
@pyqtSlot() def run(self): """执行 dfu-util 命令""" self._is_running = True final_message = "" return_code = -1
try: self.progress_update.emit(f"执行命令: {' '.join(self.command)}\n") self.process = subprocess.Popen(self.command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, text=True, encoding='utf-8', errors='ignore', bufsize=1, universal_newlines=True, creationflags=subprocess.CREATE_NO_WINDOW if sys.platform == 'win32' else 0)
if self.process.stdout: while self._is_running: line = self.process.stdout.readline() if not line: break if self._is_running: self.progress_update.emit(line) if self._is_running: self.process.stdout.close()
if self._is_running and self.process: return_code = self.process.wait() if return_code == 0: final_message = "\n--- 烧录成功完成 ---\n" else: final_message = f"\n--- 烧录失败 (返回码: {return_code}) ---\n" self.progress_update.emit(final_message)
elif not self._is_running: final_message = "\n--- 烧录中止 ---\n" return_code = -99 if self.process: self.progress_update.emit(final_message)
except FileNotFoundError: final_message = f"错误: 未找到 '{DFU_UTIL_COMMAND}' 命令。\n请确保已安装并添加到 PATH。\n" self.progress_update.emit(final_message) return_code = -1 except Exception as e: final_message = f"\n--- 烧录过程中发生异常 ---\nError: {e}\n" self.progress_update.emit(final_message) return_code = -2 finally: self._is_running = False self.process = None self.finished.emit(return_code, final_message)
@pyqtSlot() def stop(self): """请求停止 DFU 进程""" self._is_running = False if self.process and self.process.poll() is None: try: self.process.terminate() if self.process: self.progress_update.emit("尝试中止 DFU 进程...\n") except Exception as e: if self.process: self.progress_update.emit(f"中止进程时出错: {e}\n")
class STM32ToolAppPyQt(QMainWindow): def __init__(self): super().__init__() self.setWindowTitle("STM32 DFU烧录 & 串口助手 (PyQt6)") self.setGeometry(100, 100, 850, 650)
self.firmware_path = "" self.serial_instance = None self.serial_thread = None self.serial_worker = None self.dfu_thread = None self.dfu_worker = None
self._init_ui()
self.check_dfu_util_exists() QTimer.singleShot(100, self.refresh_dfu_device) QTimer.singleShot(100, self.refresh_com_ports)
def _init_ui(self): """初始化用户界面""" self.central_widget = QWidget() self.setCentralWidget(self.central_widget) self.main_layout = QVBoxLayout(self.central_widget)
self.tab_widget = QTabWidget() self.main_layout.addWidget(self.tab_widget)
self.dfu_tab = QWidget() self.serial_tab = QWidget() self.tab_widget.addTab(self.dfu_tab, "DFU 烧录") self.tab_widget.addTab(self.serial_tab, "串口助手")
self._setup_dfu_tab()
self._setup_serial_tab()
self.status_bar = QStatusBar() self.setStatusBar(self.status_bar) self.dfu_status_label = QLabel("DFU: 空闲") self.serial_status_label = QLabel("串口: 已断开") self.status_bar.addPermanentWidget(self.dfu_status_label, 1) self.status_bar.addPermanentWidget(self.serial_status_label, 1)
def _setup_dfu_tab(self): """设置 DFU 选项卡内的控件和布局""" layout = QVBoxLayout(self.dfu_tab)
control_group = QGroupBox("DFU 控制") control_layout = QGridLayout(control_group) layout.addWidget(control_group)
self.refresh_dfu_btn = QPushButton("检测 DFU 设备") self.refresh_dfu_btn.clicked.connect(self.refresh_dfu_device) self.dfu_device_label = QLabel("未检测到 DFU 设备") self.dfu_device_label.setWordWrap(True) control_layout.addWidget(self.refresh_dfu_btn, 0, 0) control_layout.addWidget(self.dfu_device_label, 0, 1, 1, 2)
control_layout.addWidget(QLabel("固件文件 (.bin):"), 1, 0) self.firmware_path_edit = QLineEdit() self.firmware_path_edit.setReadOnly(True) self.browse_firmware_btn = QPushButton("浏览...") self.browse_firmware_btn.clicked.connect(self.browse_firmware) control_layout.addWidget(self.firmware_path_edit, 1, 1) control_layout.addWidget(self.browse_firmware_btn, 1, 2)
param_layout = QHBoxLayout() param_layout.addWidget(QLabel("Alt Setting:")) self.alt_setting_edit = QLineEdit(str(DEFAULT_ALT_SETTING)) self.alt_setting_edit.setFixedWidth(50) param_layout.addWidget(self.alt_setting_edit) param_layout.addWidget(QLabel("烧录地址:")) self.flash_addr_edit = QLineEdit(DEFAULT_FLASH_ADDRESS) self.flash_addr_edit.setFixedWidth(120) param_layout.addWidget(self.flash_addr_edit) param_layout.addStretch() control_layout.addLayout(param_layout, 2, 0, 1, 3)
self.flash_button = QPushButton("开始烧录") self.flash_button.clicked.connect(self.flash_firmware) control_layout.addWidget(self.flash_button, 3, 0, 1, 3)
output_group = QGroupBox("DFU 输出") output_layout = QVBoxLayout(output_group) layout.addWidget(output_group)
self.dfu_output_text = QTextEdit() self.dfu_output_text.setReadOnly(True) self.dfu_output_text.setFontFamily("Courier New") output_layout.addWidget(self.dfu_output_text)
layout.addStretch()
def _setup_serial_tab(self): """设置串口选项卡内的控件和布局""" layout = QVBoxLayout(self.serial_tab)
settings_group = QGroupBox("串口设置") settings_layout = QGridLayout(settings_group) layout.addWidget(settings_group)
settings_layout.addWidget(QLabel("COM 端口:"), 0, 0) self.com_port_combo = QComboBox() self.refresh_com_btn = QPushButton("刷新") self.refresh_com_btn.clicked.connect(self.refresh_com_ports) settings_layout.addWidget(self.com_port_combo, 0, 1) settings_layout.addWidget(self.refresh_com_btn, 0, 2)
settings_layout.addWidget(QLabel("波特率:"), 1, 0) self.baud_rate_combo = QComboBox() baud_rates = ["9600", "19200", "38400", "57600", "115200", "230400", "460800", "921600", "1500000"] self.baud_rate_combo.addItems(baud_rates) self.baud_rate_combo.setCurrentText("1500000") settings_layout.addWidget(self.baud_rate_combo, 1, 1)
self.connect_button = QPushButton("打开串口") self.connect_button.setCheckable(True) self.connect_button.toggled.connect(self.toggle_serial_connection) settings_layout.addWidget(self.connect_button, 0, 3, 2, 1)
receive_group = QGroupBox("接收区") receive_layout = QVBoxLayout(receive_group) layout.addWidget(receive_group)
self.receive_text = QTextEdit() self.receive_text.setReadOnly(True) self.receive_text.setFontFamily("Courier New") receive_layout.addWidget(self.receive_text)
receive_bottom_layout = QHBoxLayout() self.hex_display_check = QCheckBox("Hex 显示") self.clear_receive_btn = QPushButton("清空接收") self.clear_receive_btn.clicked.connect(self.clear_receive_text) receive_bottom_layout.addWidget(self.hex_display_check) receive_bottom_layout.addStretch() receive_bottom_layout.addWidget(self.clear_receive_btn) receive_layout.addLayout(receive_bottom_layout)
send_group = QGroupBox("发送区") send_layout = QHBoxLayout(send_group) layout.addWidget(send_group)
self.send_entry = QLineEdit() self.send_entry.returnPressed.connect(self.send_serial_data) self.send_button = QPushButton("发送") self.send_button.clicked.connect(self.send_serial_data) self.send_button.setEnabled(False)
self.send_newline_check = QCheckBox("发送新行 (\\r\\n)") self.send_newline_check.setChecked(True) self.hex_send_check = QCheckBox("Hex 发送")
send_layout.addWidget(self.send_entry) send_layout.addWidget(self.send_newline_check) send_layout.addWidget(self.hex_send_check) send_layout.addWidget(self.send_button)
self.send_entry.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Preferred)
layout.addStretch()
@pyqtSlot() def refresh_dfu_device(self): """检测 DFU 设备""" self.dfu_status_label.setText("DFU: 正在检测...") self.dfu_device_label.setText("正在检测...") QApplication.processEvents()
try: process = subprocess.run( [DFU_UTIL_COMMAND, "-l"], capture_output=True, text=True, check=False, encoding='utf-8', errors='ignore', creationflags=subprocess.CREATE_NO_WINDOW if sys.platform == 'win32' else 0 ) output = process.stdout + "\n" + process.stderr
found_device = False found_device_str = "未检测到 STM32 DFU 设备" dfu_status_str = "DFU: 未检测到设备"
lines = output.splitlines() for i, line in enumerate(lines): vid_str = f"{DFU_VID_PID.split(':')[0]}" pid_str = f"{DFU_VID_PID.split(':')[1]}" print(f"114516 {vid_str} {line.lower()}") if vid_str in line.lower() and pid_str in line.lower(): found_device = True device_name = "STM32 Bootloader" if "name=" in line: try: start = line.find('name="') + len('name="') end = line.find('"', start) if start > -1 and end > -1: device_name = line[start:end] except Exception: pass
found_device_str = f"找到设备: {device_name} ({DFU_VID_PID})" dfu_status_str = "DFU: 检测到设备"
alt_info = [] j = i + 1 while j < len(lines) and lines[j].strip().startswith("alt="): alt_info.append(lines[j].strip()) j += 1 if alt_info: found_device_str += f" | Alts: {', '.join(alt_info)}" break
self.dfu_device_label.setText(found_device_str) self.dfu_status_label.setText(dfu_status_str)
if found_device: log_output = f"检测到 DFU 设备:\n{output}\n" else: log_output = f"未在 dfu-util 输出中找到 VID={DFU_VID_PID.split(':')[0]}, PID={DFU_VID_PID.split(':')[1]} 的设备。\n" log_output += "请确认:\n" log_output += "1. 设备已连接并处于 DFU 模式。\n" log_output += "2. (Windows) 已使用 Zadig 等工具安装正确的 WinUSB 或 libusb 驱动。\n" log_output += "3. (Linux) 具有访问 USB 设备的权限 (可能需要 udev 规则)。\n" log_output += f"\n--- dfu-util -l 输出 ---\n{output}\n-------------------------\n"
self._append_dfu_text(log_output)
except FileNotFoundError: self.dfu_device_label.setText("错误: 未找到 dfu-util") self.dfu_status_label.setText("DFU: 错误") self._append_dfu_text(f"错误: 未找到 '{DFU_UTIL_COMMAND}' 命令。\n") QMessageBox.critical(self, "错误", f"未找到 '{DFU_UTIL_COMMAND}' 命令。\n请确保已安装 dfu-util 并将其添加到系统 PATH 环境变量中。") except Exception as e: self.dfu_device_label.setText(f"检测出错: {e}") self.dfu_status_label.setText("DFU: 检测错误") self._append_dfu_text(f"检测 DFU 设备时出错: {e}\n") QMessageBox.critical(self, "错误", f"检测 DFU 设备时出错: {e}")
@pyqtSlot() def browse_firmware(self): """浏览选择固件文件""" initial_dir = os.path.expanduser("~") filepath, _ = QFileDialog.getOpenFileName( self, "选择固件文件", initial_dir, "Binary files (*.bin);;All files (*.*)" ) if filepath: self.firmware_path = filepath self.firmware_path_edit.setText(filepath) self._append_dfu_text(f"已选择固件: {filepath}\n")
@pyqtSlot() def flash_firmware(self): """开始 DFU 烧录过程""" if not self.firmware_path: QMessageBox.warning(self, "警告", "请先选择固件文件!") return if not os.path.exists(self.firmware_path): QMessageBox.critical(self, "错误", f"固件文件不存在: {self.firmware_path}") return
if "未检测到" in self.dfu_device_label.text() or "错误" in self.dfu_device_label.text(): QMessageBox.warning(self, "警告", "未检测到有效的 DFU 设备,请先检测设备。") return
if self.dfu_thread and self.dfu_thread.isRunning(): QMessageBox.warning(self, "警告", "已有一个烧录任务正在进行中。") return
alt_setting = self.alt_setting_edit.text() flash_address = self.flash_addr_edit.text()
if not alt_setting.isdigit(): QMessageBox.critical(self, "错误", "Alt Setting 必须是一个数字。") return if not flash_address.startswith("0x") or not all(c in '0123456789abcdefABCDEF' for c in flash_address[2:]): QMessageBox.critical(self, "错误", "烧录地址格式无效 (应为 0x 开头的十六进制数)。") return
command = [ DFU_UTIL_COMMAND, "-a", alt_setting, "-s", f"{flash_address}:leave", "-D", self.firmware_path ]
self.flash_button.setEnabled(False) self.flash_button.setText("正在烧录...") self.dfu_status_label.setText("DFU: 正在烧录...") self._append_dfu_text(f"--- 开始烧录: {os.path.basename(self.firmware_path)} ---\n") self._append_dfu_text(f"Alt Setting: {alt_setting}, Address: {flash_address}\n")
self.dfu_worker = DfuWorker(command) self.dfu_thread = QThread() self.dfu_worker.moveToThread(self.dfu_thread)
self.dfu_worker.progress_update.connect(self._append_dfu_text) self.dfu_worker.finished.connect(self.dfu_finished) self.dfu_thread.started.connect(self.dfu_worker.run) self.dfu_worker.finished.connect(self.dfu_thread.quit) self.dfu_worker.finished.connect(self.dfu_worker.deleteLater) self.dfu_thread.finished.connect(self.dfu_thread.deleteLater) self.dfu_thread.finished.connect(self._reset_dfu_state)
self.dfu_thread.start()
@pyqtSlot(int, str) def dfu_finished(self, return_code, message): """DFU 烧录完成后的处理""" last_line = message.strip().splitlines()[-1] if message.strip() else "任务结束" self.dfu_status_label.setText(f"DFU: {last_line}")
if return_code == 0: QMessageBox.information(self, "成功", "固件烧录成功!设备将尝试复位。") elif return_code != -99: QMessageBox.critical(self, "失败", f"固件烧录失败!请检查 DFU 输出信息。\n返回码: {return_code}")
QTimer.singleShot(1000, self.refresh_dfu_device)
def _reset_dfu_state(self): """重置 DFU 相关控件状态""" self.flash_button.setEnabled(True) self.flash_button.setText("开始烧录") self.dfu_thread = None self.dfu_worker = None
def _append_dfu_text(self, text): """向 DFU 输出文本框追加文本""" self.dfu_output_text.moveCursor(QTextCursor.MoveOperation.End) self.dfu_output_text.insertPlainText(text) self.dfu_output_text.moveCursor(QTextCursor.MoveOperation.End)
@pyqtSlot() def refresh_com_ports(self): """刷新可用 COM 端口列表""" current_port = self.com_port_combo.currentText() self.com_port_combo.clear() ports = serial.tools.list_ports.comports() port_names = [port.device for port in ports] self.com_port_combo.addItems(port_names) if current_port in port_names: self.com_port_combo.setCurrentText(current_port) elif port_names: self.com_port_combo.setCurrentIndex(0) self._log_serial_info("已刷新 COM 端口列表。\n")
@pyqtSlot(bool) def toggle_serial_connection(self, checked): """根据按钮状态连接或断开串口""" if checked: self._connect_serial() else: self._disconnect_serial()
def _connect_serial(self): """连接到选定的串口""" port = self.com_port_combo.currentText() baud_str = self.baud_rate_combo.currentText()
if not port: QMessageBox.warning(self, "警告", "请选择一个 COM 端口!") self.connect_button.setChecked(False) return if not baud_str.isdigit(): QMessageBox.critical(self, "错误", "波特率必须是一个数字!") self.connect_button.setChecked(False) return baud = int(baud_str)
try: self.serial_instance = serial.Serial() self.serial_instance.port = port self.serial_instance.baudrate = baud self.serial_instance.timeout = 0.1 self.serial_instance.open()
if self.serial_instance.is_open: self.serial_status_label.setText(f"串口: 已连接 {port} @ {baud}bps") self._log_serial_info(f"串口 {port} 已打开,波特率 {baud}。\n") self.connect_button.setText("关闭串口")
self.com_port_combo.setEnabled(False) self.baud_rate_combo.setEnabled(False) self.refresh_com_btn.setEnabled(False) self.send_button.setEnabled(True)
self.serial_worker = SerialWorker(self.serial_instance) self.serial_thread = QThread(self) self.serial_worker.moveToThread(self.serial_thread)
self.serial_worker.data_received.connect(self.handle_serial_data) self.serial_worker.error_occurred.connect(self.handle_serial_error) self.serial_worker.finished.connect(self.serial_worker_finished) self.serial_thread.started.connect(self.serial_worker.run) self.serial_thread.finished.connect(self.serial_worker.deleteLater) self.serial_thread.finished.connect(self.serial_thread.deleteLater)
self.serial_thread.start()
else: QMessageBox.critical(self, "错误", f"无法打开串口 {port}!(is_open is False)") self.connect_button.setChecked(False)
except serial.SerialException as e: QMessageBox.critical(self, "串口错误", f"无法打开串口 {port}:\n{e}") self.serial_status_label.setText(f"串口: 打开失败") self.serial_instance = None self.connect_button.setChecked(False) except ValueError: QMessageBox.critical(self, "错误", "无效的波特率!") self.serial_status_label.setText("串口: 错误") self.connect_button.setChecked(False) except Exception as e: QMessageBox.critical(self, "未知错误", f"连接串口时发生未知错误:\n{e}") self.serial_status_label.setText("串口: 错误") self.connect_button.setChecked(False)
def _disconnect_serial(self): """断开当前串口连接""" if self.serial_worker: self.serial_worker.stop()
if self.serial_thread and self.serial_thread.isRunning(): self.serial_thread.quit()
port_name = "" if self.serial_instance: if self.serial_instance.is_open: port_name = self.serial_instance.port try: self.serial_instance.close() if port_name: self._log_serial_info(f"串口 {port_name} 已关闭。\n") except serial.SerialException as e: if port_name: self._log_serial_info(f"关闭串口 {port_name} 时出错: {e}\n") self.serial_instance = None
self.serial_status_label.setText("串口: 已断开") self.connect_button.setText("打开串口") if self.connect_button.isChecked(): self.connect_button.setChecked(False)
self.com_port_combo.setEnabled(True) self.baud_rate_combo.setEnabled(True) self.refresh_com_btn.setEnabled(True) self.send_button.setEnabled(False)
self.serial_thread = None self.serial_worker = None
@pyqtSlot() def send_serial_data(self): """发送数据到串口""" if self.serial_instance and self.serial_instance.is_open: data_str = self.send_entry.text() if not data_str: return
try: if self.hex_send_check.isChecked(): data_str = data_str.replace(" ", "") if len(data_str) % 2 != 0: QMessageBox.warning(self, "警告", "十六进制字符串长度必须为偶数。") return if not all(c in '0123456789abcdefABCDEF' for c in data_str): QMessageBox.warning(self, "警告", "包含无效的十六进制字符。") return try: data_bytes = bytes.fromhex(data_str) except ValueError: QMessageBox.critical(self, "错误", "无效的十六进制字符串。") return else: data_bytes = data_str.encode('utf-8') if self.send_newline_check.isChecked(): data_bytes += b'\r\n'
self.serial_instance.write(data_bytes)
except serial.SerialTimeoutException: QMessageBox.warning(self, "超时", "发送数据超时!") self._log_serial_info("发送超时。\n") except serial.SerialException as e: QMessageBox.critical(self, "串口错误", f"发送数据时出错:\n{e}") self._log_serial_info(f"发送错误: {e}\n") if self.connect_button.isChecked(): self.connect_button.setChecked(False) except Exception as e: QMessageBox.critical(self, "未知错误", f"发送数据时发生未知错误:\n{e}") self._log_serial_info(f"发送错误: {e}\n") else: QMessageBox.warning(self, "警告", "串口未连接!")
@pyqtSlot(bytes) def handle_serial_data(self, data_bytes): """处理从串口接收到的数据""" cursor = self.receive_text.textCursor() is_at_end = cursor.atEnd()
cursor.movePosition(QTextCursor.MoveOperation.End) self.receive_text.setTextCursor(cursor)
if self.hex_display_check.isChecked(): hex_string = ' '.join(f'{b:02X}' for b in data_bytes) self.receive_text.insertPlainText(hex_string + ' ') else: try: text = data_bytes.decode('utf-8', errors='replace') self.receive_text.insertPlainText('[' + get_time_stamp() + '] ' + text) except Exception as e: self.receive_text.insertPlainText(f"[解码错误: {e}]")
if is_at_end: self.receive_text.moveCursor(QTextCursor.MoveOperation.End)
@pyqtSlot(str) def handle_serial_error(self, error_message): """处理串口 Worker 报告的错误""" if self.connect_button.isChecked(): QMessageBox.critical(self, "串口错误", error_message) self._log_serial_info(f"[错误] {error_message}\n") self.connect_button.setChecked(False)
@pyqtSlot() def serial_worker_finished(self): """串口 Worker 完成时的槽函数 (用于调试或确认)""" pass
@pyqtSlot() def clear_receive_text(self): """清空接收文本框""" self.receive_text.clear()
def _log_serial_info(self, message): """将普通信息记录到串口接收框""" cursor = self.receive_text.textCursor() is_at_end = cursor.atEnd() cursor.movePosition(QTextCursor.MoveOperation.End) self.receive_text.setTextCursor(cursor) self.receive_text.insertPlainText(f"[INFO] {message}") if is_at_end: self.receive_text.moveCursor(QTextCursor.MoveOperation.End)
def check_dfu_util_exists(self): """检查 dfu-util 是否可用""" try: process = subprocess.run([DFU_UTIL_COMMAND, "-V"], capture_output=True, text=True, check=False, encoding='utf-8', errors='ignore', creationflags=subprocess.CREATE_NO_WINDOW if sys.platform == 'win32' else 0) if process.returncode != 0 and ("not found" in process.stderr.lower() or "不是内部或外部命令" in process.stderr): raise FileNotFoundError if process.stdout: print(f"找到 dfu-util: {process.stdout.splitlines()[0]}") return True except FileNotFoundError: QMessageBox.critical(self, "错误", f"未找到 '{DFU_UTIL_COMMAND}' 命令。\n请确保已安装 dfu-util 并将其添加到系统 PATH 环境变量中。") self.dfu_status_label.setText("DFU: 错误 (未找到 dfu-util)") self._append_dfu_text(f"错误: 未找到 '{DFU_UTIL_COMMAND}'。\n") return False except Exception as e: QMessageBox.critical(self, "错误", f"检查 dfu-util 时出错: {e}") self.dfu_status_label.setText(f"DFU: 错误 ({e})") self._append_dfu_text(f"检查 dfu-util 时出错: {e}\n") return False
def closeEvent(self, event): """处理窗口关闭事件""" if self.dfu_worker: self.dfu_worker.stop() if self.dfu_thread and self.dfu_thread.isRunning(): self.dfu_thread.quit() if not self.dfu_thread.wait(500): print("Warning: DFU thread did not finish gracefully.")
if self.connect_button.isChecked(): self._disconnect_serial() elif self.serial_thread and self.serial_thread.isRunning(): self.serial_thread.quit() if not self.serial_thread.wait(500): print("Warning: Serial thread did not finish gracefully.")
event.accept()
if __name__ == "__main__": if hasattr(Qt.ApplicationAttribute, 'AA_EnableHighDpiScaling'): QApplication.setAttribute(Qt.ApplicationAttribute.AA_EnableHighDpiScaling, True) if hasattr(Qt.ApplicationAttribute, 'AA_UseHighDpiPixmaps'): QApplication.setAttribute(Qt.ApplicationAttribute.AA_UseHighDpiPixmaps, True)
app = QApplication(sys.argv) main_window = STM32ToolAppPyQt() main_window.show() sys.exit(app.exec())
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