Solved

reading from alredy connected serial communication

Posted on 2001-06-08
3
221 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
  • 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

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

Every server (virtual or physical) needs a console: and the console can be provided through hardware directly connected, software for remote connections, local connections, through a KVM, etc. This document explains the different types of consol…
What do we know about Legacy Video Conferencing? - Full IT support needed! - Complicated systems at outrageous prices! - Intense training required! Highfive believes we need to embrace a new alternative.
This video shows how to remove a single email address from the Outlook 2010 Auto Suggestion memory. NOTE: For Outlook 2016 and 2013 perform the exact same steps. Open a new email: Click the New email button in Outlook. Start typing the address: …
This video demonstrates how to create an example email signature rule for a department in a company using CodeTwo Exchange Rules. The signature will be inserted beneath users' latest emails in conversations and will be displayed in users' Sent Items…

760 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

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now