Controlling the serial TX line using the WinAPI?

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3 total messages Started by Jeroen Thu, 28 Nov 2002 16:08

#31

Author: Jeroen
Date: Thu, 28 Nov 2002 16:08

16 lines
1883 bytes

Hi there,
is there a possibility to control a serial port's TX line on bitlevel, like
"EscapeCommFunction(hComm,SETRTS)? I need to put the next pattern on the
serial port:

RTS 11111111111111111111000000000000000000011111111111111111111111
 TX 111111111111111111110000000000000000000000000111111111111111111
                                        time---->

Is it possible using the WinAPI?
Of not, how can I do reach my goal?
Because of some excisting hardware, it's not possible to switch to another
serial pin.

Thanks for your help,
Jeroen

Re: Controlling the serial TX line using the WinAPI?

#32

Author: Maynard Philbrook
Date: Sat, 30 Nov 2002 18:48

22 lines
2116 bytes

nope. write  a kernal Driver for real  time..
you can set the break option to set the TX line state.


Jeroen wrote:

> Hi there,
> is there a possibility to control a serial port's TX line on bitlevel, like
> "EscapeCommFunction(hComm,SETRTS)? I need to put the next pattern on the
> serial port:
>
> RTS 11111111111111111111000000000000000000011111111111111111111111
>  TX 111111111111111111110000000000000000000000000111111111111111111
>                                         time---->
>
> Is it possible using the WinAPI?
> Of not, how can I do reach my goal?
> Because of some excisting hardware, it's not possible to switch to another
> serial pin.
>
> Thanks for your help,
> Jeroen

Re: Controlling the serial TX line using the WinAPI?

#33

Author: John Smith
Date: Sun, 01 Dec 2002 05:55

34 lines
2397 bytes

Yep, not very likely. Jungo(use a search engine) has tools for creating
drivers, the borland compiler is supported...30 day free trial!
This is the only way I can see for you to reach your goal, other than
purchasing MSVC and the Microsoft DDk...

Regards,
John Smith
"Maynard Philbrook" <jamie12@mindspring.com> wrote in message
news:3DE90C09.F44A429D@mindspring.com...
> nope. write  a kernal Driver for real  time..
> you can set the break option to set the TX line state.
>
>
> Jeroen wrote:
>
> > Hi there,
> > is there a possibility to control a serial port's TX line on bitlevel,
like
> > "EscapeCommFunction(hComm,SETRTS)? I need to put the next pattern on the
> > serial port:
> >
> > RTS 11111111111111111111000000000000000000011111111111111111111111
> >  TX 111111111111111111110000000000000000000000000111111111111111111
> >                                         time---->
> >
> > Is it possible using the WinAPI?
> > Of not, how can I do reach my goal?
> > Because of some excisting hardware, it's not possible to switch to
another
> > serial pin.
> >
> > Thanks for your help,
> > Jeroen
>

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