Hi,
Have you looked at device/terminal servers such as 'nport server' from MOXA
http://www.moxa.com/product/NPort_5410.htm
These devices facilitate RS232 serial comms with devices using TCP/IP
sockets.
Very useful where application does not have serial drivers
Not cheap , but very flexible & expa
I use 6 serial ports, sometimes usb mixed in,
No problem in Gambas whatsoever
-Fernando
-- Original Message ---
From: Ron
To: mailing list for gambas users
Sent: Wed, 21 Apr 2010 15:29:37 +0200
Subject: Re: [Gambas-user] serial port issue
> I have no experience with the ca
I have no experience with the cable in my link, I just found it
yesterday, but make sure your usb to serial converters have a FTDI chip
inside.
Not (like most of mine) an Prolific PL2303 chip since they all have the
same device id and serial number, so you have a small problem identifing
them.
Thanks for the info! I may need to find some reliable hardware, this can be
an issue (the one installed by my Chinese informatics colleague doesn't give
me too much confidence :-)
Did you have to install any driver to get it working?
Robi
2010/4/21 Ron
> I use a ten ports usb hub and seperate
I use a ten ports usb hub and seperate usb to serial cables.
I have written some udev rules to lock the serial device names to the
physical ports.. otherwise they change after a reboot.
To bad I just found these guys afterwards:
http://www.picco.nl/product_info.php?products_id=2338
Regards,
Ron.
Ron,
I mean that the app doesn't do what I wish him to do :-)
Unfortunately it works as expected with the serial port on the motherboard
(ttyS0, same equipment connected, same data sent and should have been
received) so it should not be a bug in my code.
The connection parameters (including Xon/Xo
Robert JUHASZ ha scritto:
> The communication parameters are 9600, 8, n, 1, Xon/Xoff.
>
>> Do you have some sort of handshaking?
>>
Then it /could/ happen that the device sends an Xoff, but the software
does not see it at the correct time.
There has been a similar issue when the new UARTs
You mean crashing like in signal #11 core dump or the application
doesn't do what's wanted?
Which version of Gambas?
There where a few serial port related bug fixes.
http://gambas.sourceforge.net/en/changelog2.html
I use a lot (10) serial ports in my gambas app. 24/7 but I do not use
xon/off.
The communication parameters are 9600, 8, n, 1, Xon/Xoff.
2010/4/21 Doriano Blengino
> Robert JUHASZ ha scritto:
> > All the parameters are the same obtained by autoconfig, except the UART
> > which was undefined for the added ports.
> > I set this parameter to the same value as for the working
Robert JUHASZ ha scritto:
> All the parameters are the same obtained by autoconfig, except the UART
> which was undefined for the added ports.
> I set this parameter to the same value as for the working one: 16550A (in
> fact I tried all the possible UART parameters and where the port was working
>
All the parameters are the same obtained by autoconfig, except the UART
which was undefined for the added ports.
I set this parameter to the same value as for the working one: 16550A (in
fact I tried all the possible UART parameters and where the port was working
it behaves always the same: short t
Maybe try to see if there are any differences between the ports with the
setserial command.
$ setserial -a /dev/ttyS1
/dev/ttyS1, Line 1, UART: unknown, Port: 0x02f8, IRQ: 3
Baud_base: 115200, close_delay: 50, divisor: 0
closing_wait: 3000
Flags: spd_normal skip_test
$ s
Hello List,
This may not be a fully gambas question just I don't know who to ask for
help - sorry for posting it here.
I try to switch my measurement from windows XP (VB) to Ubuntu 9.10. This
program takes several (3, for the moment) equipments connected to a PC
through serial ports.
It works cor
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