I am using Python 2.5 on Windows XP. I have installed Pyserial and
win32all extensions.
When I try to run the example program scan.py (included below), or any
other program using pyserial, as soon as it hits the statement:
s = serial.Serial(i )
I get the error:
Traceback (most recent call last):
File "C:\Python25\Do c\PySerial Examples\scan.p y", line 26, in <module>
for n,s in scan():
File "C:\Python25\Do c\PySerial Examples\scan.p y", line 17, in scan
s = serial.Serial(i )
File "C:\Python25\Li b\site-packages\serial \serialutil.py" , line 156,
in __init__
self.open()
File "C:\Python25\li b\site-packages\serial \serialwin32.py ", line 57,
in open
win32file.Setup Comm(self.hComP ort, 4096, 4096)
error: (1, 'SetupComm', 'Incorrect function.')
What do I need to do to fix this? Thanks for the help!
-- Ron
The example program scan.py (from the pyserial examples folder):
-----------------------------------------------
#!/usr/bin/env python
"""Scan for serial ports.
Part of pySerial (http://pyserial.sf.net) (C)2002-2003 <cliechti@gmx.n et>
The scan function of this module tries to open each port number
from 0 to 255 and it builds a list of those ports where this was
successful.
"""
import serial
def scan():
"""scan for available ports. return a list of tuples (num, name)"""
available = []
for i in range(256):
try:
s = serial.Serial(i )
available.appen d( (i, s.portstr))
s.close() #explicit close 'cause of delayed GC in java
except serial.SerialEx ception:
pass
return available
if __name__=='__ma in__':
print "Found ports:"
for n,s in scan():
print "(%d) %s" % (n,s)
win32all extensions.
When I try to run the example program scan.py (included below), or any
other program using pyserial, as soon as it hits the statement:
s = serial.Serial(i )
I get the error:
Traceback (most recent call last):
File "C:\Python25\Do c\PySerial Examples\scan.p y", line 26, in <module>
for n,s in scan():
File "C:\Python25\Do c\PySerial Examples\scan.p y", line 17, in scan
s = serial.Serial(i )
File "C:\Python25\Li b\site-packages\serial \serialutil.py" , line 156,
in __init__
self.open()
File "C:\Python25\li b\site-packages\serial \serialwin32.py ", line 57,
in open
win32file.Setup Comm(self.hComP ort, 4096, 4096)
error: (1, 'SetupComm', 'Incorrect function.')
What do I need to do to fix this? Thanks for the help!
-- Ron
The example program scan.py (from the pyserial examples folder):
-----------------------------------------------
#!/usr/bin/env python
"""Scan for serial ports.
Part of pySerial (http://pyserial.sf.net) (C)2002-2003 <cliechti@gmx.n et>
The scan function of this module tries to open each port number
from 0 to 255 and it builds a list of those ports where this was
successful.
"""
import serial
def scan():
"""scan for available ports. return a list of tuples (num, name)"""
available = []
for i in range(256):
try:
s = serial.Serial(i )
available.appen d( (i, s.portstr))
s.close() #explicit close 'cause of delayed GC in java
except serial.SerialEx ception:
pass
return available
if __name__=='__ma in__':
print "Found ports:"
for n,s in scan():
print "(%d) %s" % (n,s)
Comment