Xp serial port problem

But others, including me, discovered a lot of details about this i. I found also how to generate the checkbit in a message and which start and stopbytes are required. I can succesfully send data to the heating unit by means of the RealTerm software. I use its possibility to send a file. This file contains exact the same data as in int R1[] in my sketch.

In this case succesfully means the heating unit accepts this data or several other files from the RealTerm programm and reacts as expected. It looks to me the Arduino sketch opens the serial communication in a peculiar way. Well, at the very least it could make the output unreliable.

What definitely won't work is reading the Arduino serial output with 2 Windows programs on the same PC. Not at all as your sending the same signal to 2 independent devices, remember there's no flow control or an thing. OP do you have any links to a data sheet that would help a great deal. A photo of the "cable" and the socket on the CHU would help. Seniorvos: I can succesfully send data to the heating unit by means of the RealTerm software.

Thanks for helping me. However, due to some unknown reason, they do not work at all on winXP OS. The programs are not written by myself, so I cannot produce any code for reference. I am interested to know if anyone has encountered this problem before? One solution is to use a IP to Com virtual convertor. However, I would like to know if there are alternative solutions to this issue, say a win98 serial port driver or upper filter?

You say this thread is as close as you can find - how does windows xp and windows 98 serial port issues relate to VB. Net development. The reason I am questioning this is that if the application is old and was written for Windows 98 then it may very well not be written in.

NET at all as VB. NET as this debuted in If you dont have access to the source then its very difficult to determine how its using the serial port, or even if its VB. Net code, or which specific version of. NET 1. Lots of questions I know but really in order to get an answer you need to provide more Information.

Ask a question. Quick access. Join your peers on the Internet's largest technical computer professional community. It's easy to join and it's free. Register now while it's still free! Already a member? Close this window and log in. Join Us Close. Join Tek-Tips Forums! Join Us! By joining you are opting in to receive e-mail. Promoting, selling, recruiting, coursework and thesis posting is forbidden.