Solved

reading from alredy connected serial communication

Posted on 2001-06-08
3
227 Views
Last Modified: 2010-04-27
Hello,

I have to read from active serial link (Microcontroller to PC). I do not want to write to this link just read for checking some information.


 PC----------Controller
      |
      |
      |
     PC - (just for readig data)

Thank you.
0
Comment
Question by:Savli1
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 31

Expert Comment

by:rid
ID: 6167681
Open a terminal program, like win3.11 "Terminal" or win9x "Hyperterminal". Choose the COM port in question and adjust settings for baud rate, data bits, stop bits etc. to conform with transmitting part. Sit back and watch the screen...
Regards
/RID
0
 
LVL 12

Accepted Solution

by:
DRRYAN3 earned 100 total points
ID: 6168097
You could try a "Y" cable arrangement, but I think you will probably have all sorts of handshaking problems.  XON-XOFF handshaking instead of hardware might work if you do not connect the transmit wire on PC#2.
0
 
LVL 31

Expert Comment

by:rid
ID: 6168814
I obviously misunderstood the Q. DRRYAN3 has valid points. It might be worth a try though, with a Y connection. I don't think normal terminal programs start any handshaking automatically, if they're not set up to initialize a modem. Just make sure not to type anything during the session... I remember connecting a computer to a laboratory instrument using an RS232 link and Terminal from win3.11. If the program was running, characters started to appear immediately (if the instrument was transmitting) as I connected the serial link. (COM ports can normally take this brutal treatment, but I don't recommend it). As suggested above, some wires should perhaps not be connected, like transmit and flow control from "PC 2".
Regards
/RID
0

Featured Post

PeopleSoft Has Never Been Easier

PeopleSoft Adoption Made Smooth & Simple!

On-The-Job Training Is made Intuitive & Easy With WalkMe's On-Screen Guidance Tool.  Claim Your Free WalkMe Account Now

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I use more than 1 computer in my office for various reasons. Multiple keyboards and mice take up more than just extra space, they make working a little more complicated. Using one mouse and keyboard for all of my computers makes life easier. This co…
This article shows how to use a free utility called 'Parkdale' to easily test the performance and benchmark any Hard Drive(s) installed in your computer. We also look at RAM Disks and their speed comparisons.
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…

707 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question