[fpc-pascal] serial.pp - I can't talk to modem

[Michael Van Canneyt]

On Wed, 2 Jan 2008, Graeme Geldenhuys wrote:

> Hi,
> 
> I've created a simple console application for Linux and Windows. It's
> a port of older Win32 API code I wrote years ago.  All I'm trying to
> do is dial a phone number and then later hang-up the phone.
> 
> I've got a external USRobotics Courier V.Everything V.90 X2 connected
> to COM1 (/dev/ttyS0).  The modem works perfectly in 'minicom' (a modem
> terminal application).  But for some reason I can't get anything out
> of the modem using the serial.pp unit.  I can see the RD and SD lights
> flicker briefly on the modem, but nothing else.

> begin
>   serialhandle := SerOpen('/dev/ttyS0');  // COM1 under Linux
> //  SerSetParams(serialhandle, 2400, 8, NoneParity, 1, []);

Shouldn't you set at least RtsCtsFlowControl ?
As far as I know, you must at least set some options, such as the baud rate
and so on, sersetparams seems to do most of the needed actions ?

Michael.