python实战串口助手---6实现串口接收
由于昨天早晨没有调试成功，心里一直不爽，觉都睡不好，于是今早不到2点就起来继续调试，终于把昨天的BUG找到了，还是串口参数配置的问题，先上代码。
#! /usr/bin/env python
# -*- coding: utf-8 -*-
import time
import datetime
import threading
import binascii
import platform
import logging
import serial
import SerialDeal
import serialMainUI
if platform.system() == "Windows":
from serial.tools import list_ports
elif platform.system() == "Linux":
import glob, os, re
import wx
import wx.xrc
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')
class MainSerialUI(serialMainUI.serialFrame):
def __init__(self, master):
super(MainSerialUI, self).__init__()
self.ser = None
self.receive_count = 0
self.receive_data = ""
self.list_box_serial = None
def __del__(self):
if platform.system() == "Linux":
try:
self.ser.SetStopEvent()
except:
pass
def m_openserOnButtonClick( self, event ):
try:
self.port = self.m_comset.GetValue()
#print ("com is %s" % self.port)
self.baudrate = self.m_comboBox2.GetValue()
#print ("buadrate is %s" % self.baudrate)
self.parity = self.m_comboBox4.GetValue()
#print ("parity is %s" % self.parity)
self.databit = self.m_comboBox3.GetValue()
#print ("databit is %s" % self.databit)
self.stopbit = self.m_comboBox5.GetValue()
#print ("stopbit is %s" % self.stopbit)
self.ser = SerialDeal.serDeal(Port=self.port,
BaudRate=self.baudrate,
ByteSize=self.databit,
Parity=self.parity,
Stopbits=self.stopbit)
self.ser.start()
if self.ser.alive:
print 'succes'
self.thread_read = threading.Thread(target=self.SerRead)
self.thread_read.setDaemon(True)
self.thread_read.start()
else:
print '0'
except Exception as e:
#logging.error(e)
print u'打开串口失败'
def SerRead(self):
try:
n = self.ser.serSer.inWaiting()
if n:
self.receive_data += self.ser.read(n).replace(binascii.unhexlify("00"), "")
if self.ser.thresholdValue <= len(self.receive_data):
self.receive_count += 1
# 接收显示是否为Hex
if self.m_rcvBox.get() == 1:
self.receive_data = self.space_b2a_hex(self.receive_data)
self.m_rcvtext.insert("end", "[" + str(datetime.datetime.now()) + " - "
+ str(self.receive_count) + "]:\n", "green")
self.m_rcvtext.insert("end", self.receive_data + "\n")
self.m_rcvtext.see("end")
self.receive_data = ""
except Exception as e:
logging.error(e)
self.receive_data = ""
self.ser.stop()
self.ser = None
def m_clrRcvTextOnButtonClick( self, event ):
self.m_rcvtext.Clear()
event.Skip()
def space_b2a_hex(self, data):
'''
格式化接收到的数据字符串
示例：123 --> 31 32 33
'''
new_data_list = list()
new_data = ""
hex_data = binascii.b2a_hex(data)
temp_data = ""
for index,value in enumerate(hex_data):
temp_data += value
if len(temp_data) == 2:
new_data_list.append(temp_data)
temp_data = ""
for index,value in enumerate(new_data_list):
if index%25 == 0 and index != 0:
new_data += "\n"
new_data += value
new_data += " "
return new_data
def m_send1butOnButtonClick( self, event ):
if self.ser.alive:
send_data = self.m_textCtrl5.GetValue()
#try:
def m_clr1butOnButtonClick( self, event ):
self.m_textCtrl5.Clear()
def main():
app = wx.App()
MainSerialUI(app).Show(True)
app.MainLoop()
if __name__ == '__main__':
main()
这段代码，配合前2次的代码，就可以运行串口的接收了，很是兴奋啊，下面还有串口的发送没有调试，改天搞定了，再次上传给大家。
下面就BUG说明一下：
大家看我的代码处有好多的#注释，就是我在调试时用于确认哪一步出错的，大家也可以试试这种调试方式。
发稿与2018年1月24日早