Modem Application

Modem Application

[Sam Valenti]

I am trying to get input from a modem (the tones it hears when online).
I have no idea how to do this.  I've tried researching in the library
and on PAL for anything, but to know avail.  I guess my specific
question is how do you do input from a peripheral.
Thanks,
Sam V.
samami@hotmail.com

Re: Modem Application

[Markus Kuhn]

Sam Valenti wrote:
> I am trying to get input from a modem (the tones it hears when online).
> I have no idea how to do this.  I've tried researching in the library
> and on PAL for anything, but to know avail.  I guess my specific
> question is how do you do input from a peripheral.

You have to learn how to communicate with an RS-232 serial port from
Ada, and then you have to read the manual for your modem concerning the
AT command set that it implements (there are also some TIA/EIA and
ITU-T recommendations on this subject, but better stick with your
modem manual). How to access the serial port depends on your operating
system. Under Linux for instance, just open the file /dev/cua1
and use the ioctl() C function (via pragma Import or via a POSIX.5
library such as florist).

Markus

-- 
Markus G. Kuhn, Security Group, Computer Lab, Cambridge University, UK
email: mkuhn at acm.org,  home page: <http://www.cl.cam.ac.uk/~mgk25/>

Re: Modem Application

[Sam Valenti]

Thanks for your help.

Markus Kuhn wrote:

> Sam Valenti wrote:
> > I am trying to get input from a modem (the tones it hears when online).
> > I have no idea how to do this.  I've tried researching in the library
> > and on PAL for anything, but to know avail.  I guess my specific
> > question is how do you do input from a peripheral.
>
> You have to learn how to communicate with an RS-232 serial port from
> Ada, and then you have to read the manual for your modem concerning the
> AT command set that it implements (there are also some TIA/EIA and
> ITU-T recommendations on this subject, but better stick with your
> modem manual). How to access the serial port depends on your operating
> system. Under Linux for instance, just open the file /dev/cua1
> and use the ioctl() C function (via pragma Import or via a POSIX.5
> library such as florist).
>
> Markus
>
> --
> Markus G. Kuhn, Security Group, Computer Lab, Cambridge University, UK
> email: mkuhn at acm.org,  home page: <http://www.cl.cam.ac.uk/~mgk25/>