VME Support

To access VME devices in your system, you must configure NI-VXI to see these devices. Windows users can configure NI-VXI by using the Create New Wizard in MAX. Users on other platforms must use the Non-VXI Device Editor in VXI Resource Editor (vxiedit or vxitedit). For each address space in which your device has memory, you must create a separate pseudo-device entry with a logical address between 256 and 511. For example, a VME device with memory in both A24 and A32 spaces requires two entries. You can also specify which interrupt levels the device uses. VXI and VME devices cannot share interrupt levels. You can then access the device from NI-VISA just as you would a VXI device, by specifying the address space and the offset from the base at which you have configured it. NI-VISA support for VME devices includes the register access operations (both high-level and low-level) and the block-move operations, as well as the ability to receive interrupts.