Rules | Recent posts | topic RSS | Search | Register  | Log in

Serial port unlocking

 
Post new topic  Reply to topic    EDAboard.com Forum Index -> PC Programming and Interfacing
Author Message
vhn



Joined: 20 Sep 2006
Posts: 74
Helped: 3
Post08 May 2008 17:16   Serial port unlocking
Hi,
I have come across many PC based softwares that often forget to release the control over COM port once they are done with the job. In such cases, no other application can access the serial port as the windows displays that already the COM port is in use. I've observed that restarting the PC is the only solution.

Is there any mechanism by which we can get back the control of COM port (meaning we can free the COM port) so that another application can access it without having to restart the PC?

Thanks,
vhn
Back to top
pakitos



Joined: 14 Nov 2005
Posts: 318
Helped: 38
Post18 May 2008 15:10   Serial port unlocking
the pc makes a checking of the serial port at restart.
that is why if you have started the pc without the mouse you can't use it unless you have restarted it (with the mouse plugged)since at start the serial port sends a request "to tell who you are " and the mouse in this case will send the ascii m character.
so you have to make the pc reask that question somehow
Back to top
Post new topic  Reply to topic    EDAboard.com Forum Index -> PC Programming and Interfacing
Page 1 of 1 All times are GMT + 2 Hours


Abuse
Administrator
Moderators
topic RSS 
sitemap