K3 - COM port iterating ...
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I use the USB to serial converter from Elecraft to connect my laptop to
my K3. When I initially plugged it in it configured itself as COM 4. Hmmm? My laptop doesn't have any real serial ports. Later, I moved it to a different connector and lost communications. The COM port had re-configured itself as COM 5. So I changed the settings on my software to suit and things were good. I wondered if this behavior was somehow related to the specific USB port. So I moved the connector back to the initial USB port. This time the COM port iterated up to COM 6. I wonder if there's a way to tell this thing to be the same COM port each time I plug it in? My computer is a fairly new Dell laptop running Vista. As recommended, I let Vista go out and find the best driver for it on the web. 73--Nick, WA5BDU #1195 _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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Hi Nick,
that's quite normal. All interfaces (each USB-Port is one interface !) are enumerated during the boot process of your OS. Each USB-Port will stay the same COMn after reboot. Connecting the converter to a different USB-Port is the same as connecting a new converter to the system. Maybe there is a way to manually modify the enumeration after reboot. I would prefer to just remember which USB-Port i used the last time. 73 de Thomas, DM7TN -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Nick-WA5BDU Sent: Friday, August 01, 2008 8:32 PM To: [hidden email] Subject: [Elecraft] K3 - COM port iterating ... I use the USB to serial converter from Elecraft to connect my laptop to my K3. When I initially plugged it in it configured itself as COM 4. Hmmm? My laptop doesn't have any real serial ports. Later, I moved it to a different connector and lost communications. The COM port had re-configured itself as COM 5. So I changed the settings on my software to suit and things were good. I wondered if this behavior was somehow related to the specific USB port. So I moved the connector back to the initial USB port. This time the COM port iterated up to COM 6. I wonder if there's a way to tell this thing to be the same COM port each time I plug it in? My computer is a fairly new Dell laptop running Vista. As recommended, I let Vista go out and find the best driver for it on the web. 73--Nick, WA5BDU #1195 _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
Re: K3 - COM port iterating ...
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In reply to this post by Nick Kennedy
Don't unplug / plug them in while the OS is running.
C'est la vie (mate). Simon Brown, HB9DRV -------------------------------------------------- From: "Nick-WA5BDU" <[hidden email]> > I use the USB to serial converter from Elecraft to connect my laptop to > my K3. When I initially plugged it in it configured itself as COM 4. > Hmmm? My laptop doesn't have any real serial ports. _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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It is an irritating feature of MS Windows. I think you can fix the RS232 port with a utility, or for example by limiting the maximum com ports to 1.
I wonder how long receivers are going to use RS232 ports. I know they are easier to deal with but most new PCs will not have them. I just got an EEE901. It has 3 USB but no com ports and is ideal for business trips or portable operations. I am surprised the K3 uses RS232 as Wane/Eric are more than capable of designing a USB based interface, which could theoretically do so much more, including passing the audio or even the I/Q. No need for those TTL/RS232 level converters either. Perhaps it was done for compatibility with older software. I am fairly sure future radios will be USB or Ethernet. Remote operations would be nice but HRD will not fit! Mike
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One advantage of an RS-232 port is it has deterministic latency. Unlike
USB, you always have a direct connection between the serial driver software and the hardware being controlled. Al N1AL On Fri, 2008-08-01 at 13:48, AD6XY wrote: > It is an irritating feature of MS Windows. I think you can fix the RS232 port > with a utility, or for example by limiting the maximum com ports to 1. > > I wonder how long receivers are going to use RS232 ports. I know they are > easier to deal with but most new PCs will not have them. I just got an > EEE901. It has 3 USB but no com ports and is ideal for business trips or > portable operations. I am surprised the K3 uses RS232 as Wane/Eric are more > than capable of designing a USB based interface, which could theoretically > do so much more, including passing the audio or even the I/Q. No need for > those TTL/RS232 level converters either. Perhaps it was done for > compatibility with older software. I am fairly sure future radios will be > USB or Ethernet. > > Remote operations would be nice but HRD will not fit! > > Mike > _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by Nick Kennedy
On my XP laptop I run two USB to serial adapters. I took the precaution
of buying two of the same type as Windows tries to install a driver every time you plug one in a port that hasn't had one plugged in previously... Using just one type means less hassle setting it all up. I've labelled my all USB ports as "Comm 4", "Comm 2", etc. and they always seem to use the same port number, mostly I plug in an adapter after Windows is up and running. I run a logging program on one port and a GPRS phone for DX Cluster access on the other. I use the laptop out portable and it all seems to work fine. Maybe Vista is more fussy but I thought it was supposed to be an improvement over XP? 73 Dave, G4AON K3/100 #80 ----------------- I wonder if there's a way to tell this thing to be the same COM port each time I plug it in? My computer is a fairly new Dell laptop running Vista. As recommended, I let Vista go out and find the best driver for it on the web. 73--Nick, WA5BDU #1195 _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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