Re: Fwd: Fwd: Re: pl2303 linux driver does not work

["Batdelger.O" <david.batdelger@grapecity.mn>]

> On Wed, Nov 05, 2014 at 12:11:00PM +0800, Batdelger.O wrote:
>> Thank you for your quick response.
>> It's  just simple python code. I'm not sure if flow control is correct. I
>> also used gtkterm and tried by every option.  I'm new at usbserial devices.
>> How to know how should it be?
>>
>>     import time
>>     import serial
>>     import sys
>>
>>     ser = serial.Serial(
>>          port='/dev/ttyUSB0',
>>          baudrate=4800,
>>          parity=serial.PARITY_ODD,
>>          stopbits=serial.STOPBITS_ONE,
>>          bytesize=serial.EIGHTBITS,
>>          # timeout=0
> That's a slow baud rate, do you mean that slow?
     Actually, baud rate is 9600. 4800 was one of my attempts.
>>     )
>>
>>     # RTS 0 DTR 1. not sure it's correct one. I tried by reverse.
>>     ser.setRTS(False)
>>     ser.setDTR(True)
> Does your device support hardware flow control?
> I think so. The Features section of device doc contains line: "Automatic hardware flow control with CTS/RTS
> ". But I'm not sure. How to know exactly it does?.
>
>>
>>     print ser.isOpen()
>>
>>     ON="\x1B\x5D"
>>     ser.write(ON)
>>     ser.flushOutput()
>>     print "after write"
>>     # read = ser.read()
>>     # sys.stdout.write("RECEIVED:" + read + "\n")
>>     ser.close()
> Try using minicom to see if you can properly connect to your device
> first, before trying to write your own code from "scratch", to determine
> that the device works.
     Device is working fine on windows 7. My simple python scripts is 
working fine without setting any options except port name (on win7).
>
> greg k-h
>

-- 
Best regards,
Batdelger.O R&D engineer
Grapecity Mongolia LLC