Need Serial Comm port help!!!

[Raymond Brantley]

Actually that is more of an explanation of the Windows NT HAL (hardware
abstraction layer). Win9x does allow programs to access the hardware
directly (one of the reasons it is less stable).

Steve, so the laptop communicates fine with other programs through the
serial port ?? Does the DFI software have an .ini file ? I would check that
just to make sure. Also make sure one of those other programs isn't keeping
the serial port tied up.


Raymond

-----Original Message-----
From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]On
Behalf Of Ludis Langens
Sent: Thursday, April 05, 2001 8:24 PM
To: diy_efi at diy-efi.org
Subject: Re: Need Serial Comm port help!!!


Steve.Flanagan at VerizonWireless.com wrote:
>
> The older machine (IBM 50Mhz) works fine with the DFI,  Uses COM 1.
>
> The newer machine uses COM1 also, same [...]
>
> The Operating system on the newer machine is WIN 98.

Windows 98 might be your problem.  I know very little about the
internals of Wintel setups.  However, in a Usenet newsgroup recently
there was a thread about direct program access to the PC hardware:

Under Win98, programs cannot directly access the hardware, even when in
DOS mode.  However, the OS catches these accesses and passes them on to
the real hardware.  As a result, most programs keep working fine.  The
problem is that the simulation takes longer (much longer) than the
original direct hardware access.

Perhaps your DFI software hits the hardware directly, and assumes a
certain access timing.

--
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/


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