Re: Emulate seriel communication

From: Hannes Danzl[NDD] (hannes_at_nexusdb.dbnexus.com)
Date: 10/31/03 

Date: Fri, 31 Oct 2003 17:07:54 +1300

> Hi,
> I am looking for something that can emulate series rs232 communication. I am
> building a application that are going to communicate with a production
> computer using rs 232, the problem is that I dont have access to it. I
> wonder if there is such device that I can setup to emulate the production
> computer?

I've been developing some realtime applications using processing data coming in
from serial ports. for this purpose we attached a passive serial splitter
(available at good electronics/hardware stores) to the production machine and a
serial reading app to app to the passive end of the split (on the active one
was still the old processing app) and logged the binary data with accurate time
stamps into a flat file of the form dd.mm.yyyy hh:mm:ss.nnn byte(s) received

we then had an app that was reading that file and after connect pushing the
data with the same time gaps onto a serial port. this app was running on com1
of the develop machine while the actual developed app was running on com2. the
two port were simply linked to each other via a cable.

that way we could completely independent of the prodcution machine. both
programs were really only a few lines code using async pro. 

-- 
Hannes Danzl [NexusDB Developer]
Newsgroup archive at http://www.tamaracka.com/search.htm

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