实例介绍
【实例简介】串口调试助手
【实例截图】软件包中
【核心代码】在软件包中
#! /usr/bin/env python
# -*- coding: utf-8 -*-
import time
import logging
import datetime
import binascii
import platform
import threading
import tkinter.ttk as ttk
import tkinter.font as tkFont
import tkinter as tk
from UI.MainFrm import MainFrame
from Utils.SerialHelper import SerialHelper
# 根据系统 引用不同的库
if platform.system() == "Windows":
from serial.tools import list_ports
else:
import glob
import os
import re
logging.basicConfig(level=logging.DEBUG,
format='%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s',
datefmt='%a, %d %b %Y %H:%M:%S')
# 结束符（16进制）CR 13(\r - 0x0D); NL(LF) 10(\n - 0x0A)
END_HEX = "0D0A"
class MainSerialTool(MainFrame):
'''
main func class
'''
def __init__(self, master=None):
super(MainSerialTool, self).__init__(master)
self.root = master
self.serial_receive_count = 0
self.serial_recieve_data = ""
self.serial_listbox = list()
self.find_all_devices()
def find_all_devices(self):
'''
线程检测连接设备的状态
'''
self.find_all_serial_devices()
self.start_thread_timer(self.find_all_devices, 1)
def find_all_serial_devices(self):
'''
检查串口设备
'''
try:
if platform.system() == "Windows":
self.temp_serial = list()
for com in list(list_ports.comports()):
strCom = com[0] ": " com[1][:-7]
self.temp_serial.append(strCom)
for item in self.temp_serial:
if item not in self.serial_listbox:
self.serial_frm.frm_left_listbox.insert("end", item)
for item in self.serial_listbox:
if item not in self.temp_serial:
size = self.serial_frm.frm_left_listbox.size()
index = list(self.serial_frm.frm_left_listbox.get(
0, size)).index(item)
self.serial_frm.frm_left_listbox.delete(index)
self.serial_listbox = self.temp_serial
elif platform.system() == "Linux":
self.temp_serial = list()
self.temp_serial = self.find_usb_tty()
for item in self.temp_serial:
if item not in self.serial_listbox:
self.serial_frm.frm_left_listbox.insert("end", item)
for item in self.serial_listbox:
if item not in self.temp_serial:
index = list(self.serial_frm.frm_left_listbox.get(
0, self.serial_frm.frm_left_listbox.size())).index(item)
self.serial_frm.frm_left_listbox.delete(index)
self.serial_listbox = self.temp_serial
except Exception as e:
logging.error(e)
def Toggle(self, event=None):
'''
打开/关闭 设备
'''
self.serial_toggle()
def Send(self):
'''
发送数据
'''
self.serial_send()
def SerialClear(self):
'''
clear serial receive text
'''
self.serial_receive_count = 0
self.serial_frm.frm_right_receive.delete("0.0", "end")
def serial_toggle(self):
'''
打开/关闭串口设备
'''
if self.serial_frm.frm_left_btn["text"] == "Open":
try:
serial_index = self.serial_frm.frm_left_listbox.curselection()
if serial_index:
self.current_serial_str = self.serial_frm.frm_left_listbox.get(
serial_index)
else:
self.current_serial_str = self.serial_frm.frm_left_listbox.get(
self.serial_frm.frm_left_listbox.size() - 1)
if platform.system() == "Windows":
self.port = self.current_serial_str.split(":")[0]
elif platform.system() == "Linux":
self.port = self.current_serial_str
self.baudrate = self.serial_frm.frm_left_combobox_baudrate.get()
self.parity = self.serial_frm.frm_left_combobox_parity.get()
self.databit = self.serial_frm.frm_left_combobox_databit.get()
self.stopbit = self.serial_frm.frm_left_combobox_stopbit.get()
self.ser = SerialHelper(Port=self.port,
BaudRate=self.baudrate,
ByteSize=self.databit,
Parity=self.parity,
Stopbits=self.stopbit)
self.ser.on_connected_changed(self.serial_on_connected_changed)
except Exception as e:
logging.error(e)
try:
self.serial_frm.frm_status_label["text"] = "Open [{0}] Failed!".format(
self.current_serial_str)
self.serial_frm.frm_status_label["fg"] = "#DC143C"
except Exception as ex:
logging.error(ex)
elif self.serial_frm.frm_left_btn["text"] == "Close":
self.ser.disconnect()
self.serial_frm.frm_left_btn["text"] = "Open"
self.serial_frm.frm_left_btn["bg"] = "#008B8B"
self.serial_frm.frm_status_label["text"] = "Close Serial Successful!"
self.serial_frm.frm_status_label["fg"] = "#8DEEEE"
def get_threshold_value(self, *args):
'''
get threshold value
'''
try:
self.ser.threshold_value = int(self.serial_frm.threshold_str.get())
except:
pass
def serial_send(self):
'''
串口数据发送 CR 13; NL(LF) 10
'''
send_data = self.serial_frm.frm_right_send.get("0.0", "end").strip()
if self.serial_frm.new_line_cbtn_var.get() == 1: # 是否添加换行符
send_data = send_data "\r\n"
logging.info(">>>" str(send_data))
if self.serial_frm.send_hex_cbtn_var.get() == 1: # 是否使用16进制发送
send_data = send_data.replace(" ", "").replace("\n", "0A").replace("\r", "0D")
self.ser.write(send_data, True)
else:
self.ser.write(send_data)
def serial_on_connected_changed(self, is_connected):
'''
串口连接状态改变回调
'''
if is_connected:
self.ser.connect()
if self.ser._is_connected:
self.serial_frm.frm_status_label["text"] = "Open [{0}] Successful!".format(
self.current_serial_str)
self.serial_frm.frm_status_label["fg"] = "#66CD00"
self.serial_frm.frm_left_btn["text"] = "Close"
self.serial_frm.frm_left_btn["bg"] = "#F08080"
self.ser.on_data_received(self.serial_on_data_received)
else:
self.serial_frm.frm_status_label["text"] = "Open [{0}] Failed!".format(
self.current_serial_str)
self.serial_frm.frm_status_label["fg"] = "#DC143C"
else:
self.ser.disconnect()
self.serial_frm.frm_left_btn["text"] = "Open"
self.serial_frm.frm_left_btn["bg"] = "#008B8B"
self.serial_frm.frm_status_label["text"] = "Close Serial Successful!"
self.serial_frm.frm_status_label["fg"] = "#8DEEEE"
def serial_on_data_received(self, data):
'''
串口接收数据回调函数
'''
self.serial_recieve_data = data
self.serial_recieve_data_hex = binascii.hexlify(
bytes(self.serial_recieve_data, "utf-8")).decode("utf-8").upper()
# 当接收到的数据达到阈值或者以结束符结束时
if self.ser.threshold_value <= len(self.serial_recieve_data) or self.serial_recieve_data_hex.endswith(END_HEX.upper()):
if self.serial_frm.receive_hex_cbtn_var.get() == 1:
self.serial_frm.frm_right_receive.insert("end", "[" str(datetime.datetime.now()) " - "
str(self.serial_receive_count) "]:\n", "green")
data_str = " ".join([hex(ord(x))[2:].upper().rjust(
2, "0") for x in self.serial_recieve_data])
logging.info("<<<" str(data_str))
self.serial_frm.frm_right_receive.insert(
"end", data_str "\n")
self.serial_frm.frm_right_receive.see("end")
else:
self.serial_frm.frm_right_receive.insert("end", "[" str(datetime.datetime.now()) " - "
str(self.serial_receive_count) "]:\n", "green")
self.serial_frm.frm_right_receive.insert(
"end", self.serial_recieve_data "\n")
logging.info("<<<" str(self.serial_recieve_data))
self.serial_frm.frm_right_receive.see("end")
self.serial_receive_count = 1
self.serial_recieve_data = ""
def find_usb_tty(self, vendor_id=None, product_id=None):
'''
查找Linux下的串口设备
'''
tty_devs = list()
for dn in glob.glob('/sys/bus/usb/devices/*'):
try:
vid = int(open(os.path.join(dn, "idVendor")).read().strip(), 16)
pid = int(open(os.path.join(dn, "idProduct")).read().strip(), 16)
if ((vendor_id is None) or (vid == vendor_id)) and ((product_id is None) or (pid == product_id)):
dns = glob.glob(os.path.join(
dn, os.path.basename(dn) "*"))
for sdn in dns:
for fn in glob.glob(os.path.join(sdn, "*")):
if re.search(r"\/ttyUSB[0-9] $", fn):
tty_devs.append(os.path.join(
"/dev", os.path.basename(fn)))
except Exception as ex:
pass
return tty_devs
if __name__ == '__main__':
'''
main loop
'''
root = tk.Tk()
root.columnconfigure(0, weight=1)
root.rowconfigure(0, weight=1)
root.geometry()
root.title("Serial Tool")
monacofont = tkFont.Font(family="Monaco", size=16)
root.option_add("*TCombobox*Listbox*background", "#292929")
root.option_add("*TCombobox*Listbox*foreground", "#FFFFFF")
root.option_add("*TCombobox*Listbox*font", monacofont)
root.configure(bg="#292929")
combostyle = ttk.Style()
combostyle.theme_use('default')
combostyle.configure("TCombobox",
selectbackground="#292929",
fieldbackground="#292929",
background="#292929",
foreground="#FFFFFF")
app = MainSerialTool(root)
root.mainloop()
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