208 lines
7.6 KiB
Python
208 lines
7.6 KiB
Python
import serial
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import sys
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import time
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import threading
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import tkinter as tk
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from tkinter import ttk, scrolledtext
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# ==========================================================
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# 串口配置
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# ==========================================================
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SERIAL_PORT = "/dev/ttyS0"
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BAUD_RATE = 115200
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TIMEOUT = 1
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class SerialHexViewer:
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def __init__(self):
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self.ser = None
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self.running = False
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self.rx_thread = None
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# ---- 主窗口 ----
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self.root = tk.Tk()
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self.root.title("串口 HEX 接收器 - {}".format(SERIAL_PORT))
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self.root.geometry("700x500")
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# ---- 顶部配置栏 ----
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top = tk.Frame(self.root)
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top.pack(fill='x', padx=8, pady=6)
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tk.Label(top, text="串口:").pack(side='left')
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self.port_entry = tk.Entry(top, width=12, justify='center')
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self.port_entry.insert(0, SERIAL_PORT)
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self.port_entry.pack(side='left', padx=4)
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tk.Label(top, text="波特率:").pack(side='left')
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self.baud_cb = ttk.Combobox(top, width=10,
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values=["9600","19200","38400","57600","115200","230400","460800","921600"])
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self.baud_cb.set(str(BAUD_RATE))
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self.baud_cb.pack(side='left', padx=4)
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tk.Label(top, text="数据位:").pack(side='left')
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self.data_cb = ttk.Combobox(top, width=4, values=["5","6","7","8"])
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self.data_cb.set("8")
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self.data_cb.pack(side='left', padx=2)
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tk.Label(top, text="停止位:").pack(side='left')
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self.stop_cb = ttk.Combobox(top, width=4, values=["1","1.5","2"])
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self.stop_cb.set("1")
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self.stop_cb.pack(side='left', padx=2)
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tk.Label(top, text="校验:").pack(side='left')
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self.parity_cb = ttk.Combobox(top, width=6, values=["None","Odd","Even"])
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self.parity_cb.set("None")
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self.parity_cb.pack(side='left', padx=2)
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# ---- 按钮 ----
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btn_frame = tk.Frame(self.root)
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btn_frame.pack(fill='x', padx=8, pady=2)
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self.btn_open = tk.Button(btn_frame, text="打开串口", bg="#2ecc71", fg="white",
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width=12, command=self.toggle_port)
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self.btn_open.pack(side='left', padx=4)
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tk.Button(btn_frame, text="清空显示", bg="#3498db", fg="white",
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width=12, command=self.clear_display).pack(side='left', padx=4)
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tk.Button(btn_frame, text="退出", bg="#e74c3c", fg="white",
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width=8, command=self.shutdown).pack(side='right', padx=4)
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# 显示格式选择
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self.show_ascii = tk.BooleanVar(value=True)
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tk.Checkbutton(btn_frame, text="同时显示 ASCII",
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variable=self.show_ascii).pack(side='left', padx=8)
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ttk.Separator(self.root, orient='horizontal').pack(fill='x')
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# ---- HEX 显示区 ----
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self.text_area = scrolledtext.ScrolledText(
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self.root, font=("Courier New", 11),
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bg="#1e1e1e", fg="#00ff00",
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insertbackground="white",
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state='disabled'
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)
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self.text_area.pack(fill='both', expand=True, padx=8, pady=6)
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# ---- 状态栏 ----
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self.status_var = tk.StringVar(value="状态: 未连接")
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tk.Label(self.root, textvariable=self.status_var,
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anchor='w', fg="gray").pack(fill='x', padx=8, pady=2)
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self.rx_count = 0
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# ----------------------------------------------------------
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def toggle_port(self):
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if not self.running:
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self.open_port()
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else:
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self.close_port()
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def open_port(self):
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port = self.port_entry.get().strip()
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baud = int(self.baud_cb.get())
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data = int(self.data_cb.get())
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stop = float(self.stop_cb.get())
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parity_map = {"None": serial.PARITY_NONE,
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"Odd": serial.PARITY_ODD,
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"Even": serial.PARITY_EVEN}
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parity = parity_map.get(self.parity_cb.get(), serial.PARITY_NONE)
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try:
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self.ser = serial.Serial(
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port=port, baudrate=baud,
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bytesize=data, stopbits=stop,
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parity=parity, timeout=TIMEOUT
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)
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self.running = True
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self.rx_count = 0
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self.btn_open.config(text="关闭串口", bg="#e74c3c")
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self.status_var.set("状态: 已连接 {} @ {} bps".format(port, baud))
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self.rx_thread = threading.Thread(target=self._read_loop, daemon=True)
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self.rx_thread.start()
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except Exception as e:
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self.status_var.set("状态: 打开失败 - {}".format(e))
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def close_port(self):
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self.running = False
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if self.ser and self.ser.is_open:
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self.ser.close()
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self.btn_open.config(text="打开串口", bg="#2ecc71")
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self.status_var.set("状态: 已断开 | 累计接收: {} 字节".format(self.rx_count))
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# ----------------------------------------------------------
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def _read_loop(self):
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"""独立线程：持续读取串口数据"""
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buf = bytearray()
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last_flush = time.time()
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while self.running:
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try:
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waiting = self.ser.in_waiting
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if waiting > 0:
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data = self.ser.read(waiting)
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buf.extend(data)
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self.rx_count += len(data)
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# 每满 16 字节 或 超过 50ms 未刷新 则输出一行
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now = time.time()
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while len(buf) >= 16:
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self._append_hex_line(bytes(buf[:16]))
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buf = buf[16:]
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if buf and (now - last_flush) >= 0.05:
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self._append_hex_line(bytes(buf))
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buf.clear()
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last_flush = now
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else:
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# 无数据时刷新剩余缓冲
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if buf and (time.time() - last_flush) >= 0.1:
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self._append_hex_line(bytes(buf))
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buf.clear()
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last_flush = time.time()
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time.sleep(0.005)
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except Exception as e:
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if self.running:
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self.root.after(0, self.status_var.set,
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"状态: 读取错误 - {}".format(e))
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break
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def _append_hex_line(self, data: bytes):
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"""格式化为 HEX 行并追加到显示区（线程安全）"""
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ts = time.strftime("%H:%M:%S")
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hex_str = " ".join("{:02X}".format(b) for b in data)
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# 对齐：16字节 = 47字符宽
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hex_padded = "{:<47}".format(hex_str)
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if self.show_ascii.get():
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ascii_str = "".join(chr(b) if 32 <= b < 127 else '.' for b in data)
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line = "[{}] {} |{}|".format(ts, hex_padded, ascii_str)
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else:
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line = "[{}] {}".format(ts, hex_str)
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self.root.after(0, self._insert_text, line)
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self.root.after(0, self.status_var.set,
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"状态: 接收中 | 累计: {} 字节".format(self.rx_count))
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def _insert_text(self, line):
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self.text_area.config(state='normal')
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self.text_area.insert('end', line)
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self.text_area.see('end') # 自动滚动到最新
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self.text_area.config(state='disabled')
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def clear_display(self):
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self.text_area.config(state='normal')
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self.text_area.delete('1.0', 'end')
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self.text_area.config(state='disabled')
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def shutdown(self):
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self.close_port()
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self.root.destroy()
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def run(self):
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self.root.mainloop()
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if __name__ == "__main__":
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viewer = SerialHexViewer()
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viewer.run()
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