DOS:
! Ensure that the cable is pushed all the way into the calculator (This is probably the most common
difficulty, and easily overlooked).
! Check that your computer meets Graph Link's system requirements.
! If you use a notebook computer, make sure the port you are using is turned ON. Secondly, try using
Graph Link with the battery savings turned off. These battery conservation mechanisms often
create difficulties with Graph Link.
! Ensure that the COM port that the cable is plugged into and the COM port selected in Setup match.
! If you have a mouse and mouse driver, they may be causing an IRQ (interrupt request) conflict with
Graph Link. Try rebooting the computer with out the mouse and/or mouse driver loaded.
! Ensure that you do not have a device conflict, such as an internal modem using the same COM port
that the Graph Link is using.
! Ensure that the IRQ for COM1 & COM3 is set to IRQ 4, and COM2 & COM4 are set to IRQ 3.
(Graph Link requires these settings, while other serial devices might not.)
! With DOS 6.0 and higher, try rebooting the computer bypassing the autoexec.bat and config.sys by
pressing F5 when computer says "starting MS-DOS".
Windows:
! Check the first 6 bullets above.
! Check that your computer meets Graph Link's system requirements.
! Make sure Windows has not changed the condition of the COM ports.
! For example, the DOS version may work while the Windows version does not. Windows port
setting under the Control Panel could have changed the com port setups.
! Check the Startup group to see if any additional programs are being loaded along with Windows
that might interfere with serial communication.
Why can't I open an edit-locked program using my Graph Link?
In order to open a write-protected program, you must have version 1.1 or later of the Macintosh
software which allows you to edit-lock a program. To determine the version of the Macintosh software,
you can click and hold the Apple symbol and then click on About TI-GRAPH LINK. If you have an early
version of the software, you will need to get a newer version.
Note: The Windows software has always allowed users to update a protected 82 program.
The TI-83, TI-86, and TI-92 softwares have had this feature from the beginning as well.
Can I connect my Graph-Link to my iMac, or other Macintosh computers that have USB ports?
Yes. You can purchase a TI-GRAPH LINK USB cable to connect your TI graphing calculator to a
Macintosh USB port. To place an order via phone, call 1-800-842-2737. You can also place an order
through our online store.
You can connect the Gray TI-GRAPH LINK cable to a Macintosh USB port by using a USB to serial
adapter.
USB-to-Serial adapters are available on the WWW. For more information on USB-to-Serial adapters
you can visit the following web sites:
http://www.keyspan.com/
http://www.usbstuff.com/
http://www.entrega.com
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