National Instruments 850, VXIpc DOS Users

Chapter 2 Setup

DOS Users

Although the VXIpc-850 default configuration can get Windows users

up and running without any changes, DOS users must reconfigure the

VXIpc-850 to operate with applications that will use the NI-VXI

software for DOS. You must use the VXI Resource Editor program,

either VXIedit or VXItedit, to make these necessary changes.

1. Run the VXIedit or VXItedit utility.

2. Select the VXIpc Configuration Editor from the options list.

3. Relocate the VXIpc-850 driver window to below 1 MB. Notice

that the VXIedit or VXItedit utility warns you that the driver

window is located above 1 MB. While this default setting is

acceptable for Windows users, DOS users must enter a memory

address below the 1 MB boundary to relocate the VXIpc-850

registers temporarily. Select an unused section of the Upper

Memory region (usually 0xC800 to 0xE800). Notice that this

memory cannot be used by another device (such as a plug-in card)

or memory manager (such as EMM386.EXE). This placement is

valid only while VXIedit or VXItedit is running.

4. To permanently place the board at the address, use the Bus

Configuration Editor in VXIedit or VXItedit. Within this editor,

set the Below 1 MB control for the driver window to Yes. In the

Window Base field, select the address space to which to assign the

VXIpc-850 registers.

5. Update your configuration in VXIedit or VXItedit by selecting the

Update Current Configuration option from the VXIpc-850

Configuration Editor main menu.

6. Reboot your computer.

7. Execute VXIinit from the DOS prompt. This utility initializes the

VXIpc-850 hardware. VXIinit also shows where the PCI

Configuration Manager has placed your VXIpc-850. If this region

conflicts with another board in your system, or if you experience

any problems with your system, refer to the User Window and

Driver Window section in Chapter 3, NI-VXI Configuration Utility ,

in the NI-VXI Software Manual for the VXIpc-850 Series. Notice

that if you are using a memory manager (such as EMM386.EXE),

you must exclude the region assigned to your VXIpc-850. This

region may shift if you insert any expansion boards into the PCI

expansion slot.

8. Execute RESMAN to configure your VXI system.