帮助.....串口编程

Question

我想在python中与我的串口通信。我安装了pyserial，而uspp用于linux。但是，当我运行以下代码时：

import serial

ser = serial.Serial('/dev/pts/1', 19200, timeout=1)

print ser.portstr #check which port was really used

ser.write("hello") #write a string

ser.close() #

它出现以下错误：

Traceback (most recent call last): 
File "poi.py", line 5, in ser.open() 
File "/usr/local/lib/python2.6/dist-packages/pyserial-2.5-py2.6.egg/serial/serialposix.py", 

line 276, 
in open raise SerialException("could not open port %s: %s" % (self._port, msg)) serial.serialutil.SerialException: 
could not open port /dev/tyUSB1: [Errno 2] No such file or directory: '/dev/tyUSB1'

我该怎么办？

Answer 1

/dev/tyUSB1看起来像是一个错字。设备节点通常称为/dev/ttyXXX

Answer 2

如果您想打开第二个USB串口，则需要/dev/ttyUSB1而不是/dev/tyUSB1。