TIB: Re: Re: PC Serial Port Availability
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TIB: Re: Re: PC Serial Port Availability
You have little idea of what you just said, don't you?
There are things I must explain about this. There are conflict problems
with not only COM ports, but the IRQ they attain also. Best results are
when each device has its own COM port and each COM port has its own IRQ.
Common are limitations of only 4 COM ports, assigned an IRQ in a range of 3
to 7. Newer software (Win95/8, and newer OSes) can handle more COM ports,
although many people favor USB over the dying serial port.
If you have an internal modem, and still have the instruction manuel, assign
a COM port of 4 to it. If it isn't PnP, you'll have to look in your Device
Manager (Start|Settings|Control Panel|System|Device Manager|Computer) to
find what IRQs are available for your PC and assign one that isn't being
used to your modem. The lower the IRQ, the higher the priority.
For the COM ports in your motherboard, you'll have to get into your mobo's
BIOS to change the settings for those. If it is extremely old, you might
even have to open up your PC and mess w/ jumpers. IF YOU HAVE TO OPEN YOUR
PC, BE EXTREMELY CAREFUL OF WHICH JUMPERS YOU CHANGE AND TO WHAT. I
RECOMMEND HAVING YOUR MOBO'S INSTRUCTION MANUEL WITH YOU IF YOU WANT TO TRY
THIS. Change the serial port(s) on your computer to use COM ports 1 and 2.
Give the lowest IRQ to the COM port you plan to attach your mouse to, as
most serial mice preform sluggish if not above IRQ 5.
Set up your devices in Windows accordingly or remove the old ones and search
for new (changed) hardware (Start|Settings|Control Panel|Add New Hardware).
It helps if you have two external serial ports and an internal modem. If
you don't, then you're out of luck and you'll have to switch no matter what.
If you have a PS/2 mouse port on your PC, for GOD'S SAKES!! USE IT!! Not
only is the mouse response incredibly faster, it won't slow down your system
by using another IRQ on the serial bus!
-Miles Raymond EML: m_rayman@bigfoot.com
ICQ: 13217756 IRC: Killer2 AIM: kilier2
http://www.bigfoot.com/~m_rayman
----- Original Message -----
From: "Bryan Rabeler" <rabelerb@pilot.msu.edu>
To: <ti-basic@lists.ticalc.org>
Sent: Wednesday, January 19, 2000 6:30 PM
Subject: TIB: Re: PC Serial Port Availability
> You should really be asking this on TI-Hardware.. but anyway..
>
> Some computers have a PS/2 style mouse which doesn't use one of your
serial
> ports, and others have a serial mouse that does. I assume you probably
have the
> latter..? If so, there is nothing you can really do about it, except log
off
> the internet if you want to use your graph link. You could put your modem
&
> graph link on the same IRQ and the mouse on the other IRQ and that could
work.
>
> Bryan
>
> ----- Original Message -----
> From: "G.E.Cook" <74401.324@compuserve.com>
> To: <ti-basic@towerguard.unix.edu.sollentuna.se>
> Sent: Wednesday, January 19, 2000 6:14 PM
> Subject: TIB: PC Serial Port Availability
>
> I have an old 486 computer running Windows 3.1. In order to transfer
> programs to my TI-86 (or HP-48g), I find I have to reboot the computer
> using a special boot-up disk removing all references to my mouse in the
> autoexec.bat file. The mouse uses serial port #2. My internal modem uses
> serial port #1. I can then use keyboard functions to move around Win
3.1and
> WLINK86 to transfer files back and forth using serial port #2. This
> procedure is a real pain!!
> My questions are:
> 1) How do other people get an available Serial Port (and an unused IRQ)
on
> a PC?
> 2) Is the TI-89 file X-fer program is only available for Win 95 and up ?
> Or can the TI-86 WLINK86.EXE be used?
> Thanx .....gecook@compuserve.com
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