Computer Hope

Hardware => Drivers => Topic started by: m151203 on November 21, 2006, 08:06:36 AM

Title: Com Port 1 already in use
Post by: m151203 on November 21, 2006, 08:06:36 AM

Connecting profiler to laptop through com port 1. Message comes up com port 1 already open and cannot download data. How do I find what program using com 1 when only profiler connected to the port :-?

Title: Re: Com Port 1 already in use
Post by: patio on November 21, 2006, 01:15:41 PM

Lots more info and someone will be along shortly....

What's a profiler for example ? ?

What machine are you hooking it up to is another example....

Title: Re: Com Port 1 already in use
Post by: street1 (RIP) on November 22, 2006, 10:05:26 AM

Is there a way to use USB?

You have presented Profiler as a hardware item. :-?

So here we are waiting........................

Title: Re: Com Port 1 already in use
Post by: DaveLembke on November 26, 2006, 11:40:35 AM

Com1 can be a number of many devices already connected such as ( old serial mouse, or Dial-Up Modem ) these devices normally use Com2,3,4 but does the profiler accept Com2 if your system has a Com2 port... :-/

Also remember that Com1 and Com3 share an interrupt and Com 2 and Com4 normally share an Interrupt and can conflict between devices at Com1 and Com3, Com2 and Com4 .... Dave  ;D

Most newer systems with modems like seen with US Robotics cards use Virtual IRQ's ( Interrupts ) to avoid this problem

Title: Re: Com Port 1 already in use
Post by: patio on November 26, 2006, 12:27:24 PM

Well he's dissappeared for 4 days so...

Title: Re: Com Port 1 already in use
Post by: GX1_Man on November 26, 2006, 12:40:32 PM

I'm turning the lights off now..... 8-)

Title: Re: Com Port 1 already in use
Post by: street1 (RIP) on November 29, 2006, 07:55:38 PM

Click!