Communicating with serial port

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I am an intermediate programmer using C++. I currently have a program to control a stepper motor through a parallel port, but the laptop that I wish to execute my code on only has a serial port.

I am guessing you cannot just buy an adapter for serial->parallel and run the code that way?

I have heard that the handshaking lines of the serial port could be a good option, but have not figured out how to access them in the coding.

Thank you very much for your help,

Posted 8-Jun-11 3:56am

Member 7986660

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OriginalGriff · Answer 1 · 2011-06-08T04:08:00

Solution 1

You would be wrong, as well: http://www.google.co.uk/search?aq=1&oq=serial+to+pa&sourceid=chrome&ie=UTF-8&q=serial+to+parallel+converter[^]

Posted 8-Jun-11 4:08am

OriginalGriff

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Member 7986660 9-Jun-11 9:43am

So if I am using this:

_outp(0x378,255);
_outp(0x378,0);

to move my motor one step, I will not need to change it by just using the adapter? I'm guessing there is/are other drivers that would need to be installed as well.

thanks,

barneyman · Answer 2 · 2011-06-08T19:32:00

Solution 2

if all you want is V+ and you're using Windows, have a look at using the DTR line thru EscapeCommFunction[^]

Posted 8-Jun-11 19:32pm

barneyman