Initialize Dialog Box using Marvin Test Solutions’ HW driver
The Initialize dialog initializes the driver for the selected board. The board’s settings will not change after initialize is called. Once initialized, the panel reflects the current settings of the board.
The Initialize dialog supports two different device drivers that can be used to access and control the board:
1. Use
Marvin Test Solutions’ HW – this is the device driver installed by
the setup program and is the default driver. When selected, the Slot Number list displays the
available boards installed in the system and their slots. The chassis,
slots, devices and their resources are also displayed by the HW resource
manager, PXI/PCI Explorer applet
that can be opened from the Windows Control Panel. The PXI/PCI Explorer
can be used to configure the system chassis, controllers, slots and devices.
The configuration is saved to PXISYS.INI and
PXIeSYS.INI located in the
Windows folder. These configuration files are also used by VISA. The following
figure shows slot number 0x10D (chassis 1 Slot 13). This is the slot number
argument (nSlot) passed by the panel when calling the driver GxAoInitialize function used to initialize
driver with the specified board.
Initialize
Dialog Box using
Marvin Test Solutions’ HW driver
2. Use VISA – this is a third-party device driver usually provided by National Instrument (NI-VISA). When selected, the Resource list displays the available boards installed in the system and their VISA resource address. The chassis, slots, devices and their resources are also displayed by the VISA resource manager, Measurement & Automation (NI-MAX) and in Marvin Test Solutions’ PXI/PCI Explorer. The following figure shows PXI3::13::INSTR as the VISA resource (PCI bus 3 and Device 13). This is VISA resource string argument (szVisaResource) passed by the panel when calling the driver GxAoInitializeVisa function to initialize the driver with the specified board.
Initialize Dialog Box using VISA resources