DS-1000 Operating Manual
DS-1000 USB Drivers
page B33
Appendix B DS-1000 USB Drivers
In order to use the DS-1000 USB port for tracer control, the DS-1000 USB
drivers must be installed on the computer running IVPC.
Two drivers will be installed. The primary driver will be a USB device driver
labeled “DS-1000 I-V Tracer”. The second driver will be a virtual COM port also
labeled “DS-1000 I-V Tracer”. This virtual COM port will function as a
conventional COM port.
While normally, there is no reason to use the virtual COM port when using IVPC
3, in some cases, it may be useful to avoid problems when using the USB port
directly. Note: This does not affect how the tracer is connected, only how the
Windows operating system “sees” the tracer. Either directly as a USB device or
indirectly through a COM port.
IVPC 3 supports COM ports 1 through 16. Therefore after being created, the
virtual COM port must be assigned a COM port number in this range. It is
possible for the operating system to assign a COM port number outside this
range, even if a COM port number from 1 to 16 is not in use.
Use the Windows device manager to change the COM port number assigned to
this virtual COM port to a value from 1 to 16. Often Windows will warn that a
COM port is in use, even when the port is known to be unused at the time. If the
port is known to be available, reassign it to the necessary value from 1 to 16.
Consult the Microsoft documentation and help system for details on using the
device manager.
Note: If a conventional RS-232 COM port is available, there is no advantage to
using the DS-1000 USB port and it is not necessary to install these USB drivers.
However, many notebook computers do not have COM ports, and therefore it is
necessary to install these DS-1000 USB drivers.
