Tom Handley wrote:
>
>    Matt, I just started writing some Win95/DOS 32-Bit 4GW routines to
> communicate with my PIC-based weather station via the serial port at
> 9600 baud. The weather station sends 493 Bytes per day and I have'nt had
> any problems with the serial port. I'm using the Watcom C/C++ compiler and
> I'm accessing the serial port directly, not through BIOS. The program uses
> the _pg_chart functions to display a variety of graphs. So far it's working
> fine and I don't use interrupts. I intend to move the code to Win 95.
>
Tom,
I wouldn't expect many problems when you're only transmitting a small
block of data.  The only time I encountered any Win95/DOS window
problems (with non-interrupt driven IO) was when I was doing a large
data dump from my device to the PC.  It would get through a couple of k
of data before excessive data errors occurred.  Just be aware that the
*potential* for a problem is still there.  (Note that before I went with
interrupts, comm problems only occurred under a DOS *window*.)
--Matt