Measurement Computing Personal488 rev.3.0 For DOS & Windows 3.Xi - Manual (Page 44)

6. Personal488/CARD I. HARDWARE GUIDES
I-28 Personal488 User’s Manual, Rev. 3.0
allow the user to continue onto the configuration of external devices via or to view a graphic
representation of the interface card with the selected settings via .
Configuring Driver488 Interfaces
Driver488 supports two types of interfaces: IEEE and Serial. Once the CONFIG.EXE program is
entered, highlight the Device Type selection from the Configuration Window and choose the
CARD488 option from the resulting pop-up menu. The Driver488/DRV screen, shown next, or one
similar, will be displayed.
Once an interface is selected, the fields and default entries which appear in the configuration window
depend on the device type specified. To add another IEEE interface, select
. If you will be using
more than one interface, refer to other sections of this manual for additional information, as needed.
The configuration parameters of the IEEE interface are described following the figure of the
Driver488/DRV screen.
Configuration Parameters
•
Name: This field is a
descriptive instrument
name which is
manually assigned by
the user. This must be
a unique name.
Typically,
IEEE or
COM is used (up to 8
characters).
•
IEEE Bus Address:
This is the setting for
the IEEE bus address
of the board. It will be
checked against all the
instruments on the bus
for conflicts. It must
be a valid IEEE bus
address from
0 to 30 .
•
Interrupt: A
hardware interrupt
level can be specified to improve the efficiency of the I/O adapter control and communication
using Driver488. Personal488/CARDs may not share the same interrupt level. If no interrupt level
is to be used, select NONE. Valid interrupt levels depend on the type of interface, since interrupt
sharing is not permitted in the PCMCIA 2.1 specification. Settings are as follows: Levels 3-7,
Levels 9-12, Levels 14-15, or NONE.
•
SysController: This field determines whether or not the Personal488/CARD is to be the System
Controller. The system controller has ultimate control of the IEEE 488 bus, and the ability of
asserting the interface clear (
IFC ) and remote enable ( REN ) signals. Each IEEE 488 bus can have
only one system controller. If the PCMCIA IEEE Card is a peripheral, it may still take control of
the IEEE 488 bus if the Active Controller passes control to it. The “CARD” may then control the
bus and, when it is done, pass control back to the System Controller or another controller, which
then becomes the active controller. If the “CARD” will be operating in Peripheral mode (not
System Controller), leave this field blank.
•
LightPen: This field determines whether the LightPen command is to be used. If selected, it will
disable the detection of interrupts via setting the light pen status. The default is light pen interrupt
enabled.
•
Timeout (ms): The time out period is the amount of time that data transfers wait before assuming
that the device does not transfer data. If the time out period elapses while waiting to transfer data,