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串口模块

该模块为线程对象,具体看代码。使用serial模块,数据接收为超时接收。适当的修改timeout可以变得更加合适于工作上的需要。调用serial的方法,可以在线程运行时修改串口的参数,自行修改这个模块。要很好的使用该模块,自己再了解下import 进来的几个模块。serial模块是需要自己进行安装的。python不自带。其他模块python2.5以上都是自带的。

 
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#!/usr/bin/env python
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#-*- encoding: gb18030 -*-
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import threading
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import Queue
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import serial
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import time
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class ComOpen(threading.Thread):
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    def __init__(self,port=None,baudrate=None,parity=None,bytesize=None,stopbits=None,queue=None):
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        self.comm= serial.Serial()
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        self.queue= queue
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        self.comm.port = port
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        self.comm.baudrate = baudrate
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        self.comm.parity = parity
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        self.comm.bytesize = bytesize
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        self.comm.stopbits = stopbits
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        self.comm.setTimeout(0.5)
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        self.comm.open()
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        self.thread_stop=False
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        self.string=''
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        threading.Thread.__init__(self)
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    def run(self):
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        while not self.thread_stop:
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            try:
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                s=self.comm.read()
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                if len(s)>0:
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                    self.string +=s
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                elif len(self.string)>0:
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                    self.queue.put(self.string)
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##                    print self.string
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                    self.string=''
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                else:
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                    pass
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            except Exception,data:
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                if data.message=="timed out" and len(self.string)>0:
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                    print data
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                    self.queue.put(self.string)
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                    self.string=''
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                    continue
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                elif data.message=="timed out":
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                    print data
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                    continue
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                else:
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                    print data
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                    self.stop()
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    def senddate(self,data):
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        if not self.thread_stop:
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            self.comm.write(data)
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    def stop(self):
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        self.thread_stop=True
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        try:
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            self.comm.flush()
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            self.comm.close()
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        except Exception,data:
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            print data

补充:综合编程 , 其他综合 ,
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