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.
I have not installed any drivers, but I had to lock them like this: http://www.domotiga.nl/wiki/Linux/InstallOpt#Lockserialdevicenames Here is an old photo of my test server showing some of them: http://www.domotiga.nl/wiki/Domotiga/SetupPics Using Ubuntu 9.10 Regards, Ron. > 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 <[email protected]> > > >> 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/Xoff) are required by the >>> >> equipment >> >>> I use. >>> >>> Physically, how did you connect 10 serial ports to your machine? With a >>> >> card >> >>> or do you use virtual ports with USB connector? >>> >>> Robi >>> >>> 2010/4/21 Ron <[email protected]> >>> >>> >>> >>>> 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. >>>> >>>> Regards, >>>> Ron. >>>> >>>> >>>>> The communication parameters are 9600, 8, n, 1, Xon/Xoff. >>>>> >>>>> 2010/4/21 Doriano Blengino <[email protected]> >>>>> >>>>> >>>>> >>>>> >>>>>> 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 >>>>>> >>>>>> >>>>>> >>>>>>> it behaves always the same: short test messages pass but in the real >>>>>>> >>>>>>> >>>> work >>>> >>>> >>>>>>> environment it crashes). >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> Do you have some sort of handshaking? >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >> ------------------------------------------------------------------------------ >> >>>>>> _______________________________________________ >>>>>> Gambas-user mailing list >>>>>> [email protected] >>>>>> https://lists.sourceforge.net/lists/listinfo/gambas-user >>>>>> >>>>>> >>>>>> >>>>>> >> ------------------------------------------------------------------------------ >> >>>>> _______________________________________________ >>>>> Gambas-user mailing list >>>>> [email protected] >>>>> https://lists.sourceforge.net/lists/listinfo/gambas-user >>>>> >>>>> >>>>> >>>> >> ------------------------------------------------------------------------------ >> >>>> _______________________________________________ >>>> Gambas-user mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/gambas-user >>>> >>>> >>>> >> ------------------------------------------------------------------------------ >> >>> _______________________________________________ >>> Gambas-user mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/gambas-user >>> >>> >> >> ------------------------------------------------------------------------------ >> _______________________________________________ >> Gambas-user mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/gambas-user >> >> > ------------------------------------------------------------------------------ > _______________________________________________ > Gambas-user mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/gambas-user > ------------------------------------------------------------------------------ _______________________________________________ Gambas-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/gambas-user
