Testing COM Ports
I have a computer which has an application complaining that it cannot communicate with COM port 1.
the message is something like
Error contacting COM PORT 1
How can i check that the COM is working properly in Windows ( this is a Windows XP comptuer ). The COM has worked fine before, this must be a new problem.
Is there any commands i can send to the COM port or software which i can use to test it.
I am trouble shooting this remotely via remote desktop, so if possible any suggestions which i can do over remote desktop.
Thank you !
GISVPN
the message is something like
Error contacting COM PORT 1
How can i check that the COM is working properly in Windows ( this is a Windows XP comptuer ). The COM has worked fine before, this must be a new problem.
Is there any commands i can send to the COM port or software which i can use to test it.
I am trouble shooting this remotely via remote desktop, so if possible any suggestions which i can do over remote desktop.
Thank you !
GISVPN
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SOLUTION
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If you can get access to the machine physically and hook up a null modem cable to it from another machine, you could run LookRS232 and see if the transmission of a specific sequence gets across. Another alternative is a loopback plug that will take what is transmitted on the send lines and connect it to the receive lines so you get back what is transmitted. These came with a diagnostic utility for pcs a while back called PC Tools.
ASKER
Hello thank you for your posts.
The problem has been resolved.
I uninstalled COM port 1, restarted the computer and then reinstalled COM port 1 and it now works all good !
thank you all
GISVPN
The problem has been resolved.
I uninstalled COM port 1, restarted the computer and then reinstalled COM port 1 and it now works all good !
thank you all
GISVPN
ASKER
could i ask if the COM port was disabled in BIOS would windows see it ? Can i check if its disabled in BIOS from windows ?