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[:CONFigure]:VME:FEED
VINStrument[:CONFigure]:VME:FEED <source > selects which data source
will feed the VME (VXI data transfer) bus. The bus is driven by reading the data
register, offset 12 (0C
16
) in A24 address space. Sources beginning with "MEMory: "
are the post measurement modes, sources beginning with "CONVerter: " are the real
time modes. The possible sources are:
" MEMory:CHANnel1" : Channel 1 memory is the data source for the VME bus.
One 16-bit reading is returned.
" MEMory:CHANnel2" : Channel 2 memory is the data source for the VME bus.
One 16-bit reading is returned.
" MEMory:BOTH" : Both channels of memory are the data source for the VME
bus. In this mode, channel 1 will be output the first time the data register is
accessed, channel 2 is output the second time the data register is accessed. One
16-bit reading is returned with each access.
" MEMory:BOTH32" : Both channels of memory are the data source for the VME
bus. In this mode, accessing the data register returns a 32-bit number where the
high order 16 bits are the channel 2 reading and the low order 16 bits are the channel
1 reading.
" CONVerter:CHANnel1" : The channel 1 A/D converter is the data source for
the VME bus. One 16-bit reading is returned.
" CONVerter:CHANnel2" : The channel 2 A/D converter is the data source for
the VME bus. One 16-bit reading is returned.
" CONVerter:BOTH" : Accessing the data register triggers both A/D converters at
the same time, and one 16-bit reading (channel 1) is returned. Accessing the data
register a second time returns the second 16-bit reading (channel 2), but does not
trigger the A/Ds.
" CONVerter:BOTH32" : Accessing the data register triggers both A/D converters
at the same time, and one 32-bit number is returned. The high order 16 bits are the
channel 2 reading, and the low order 16 bits are the channel 1 reading.
VINStrument[:CONFigure]:VME:FEED
VINStrument Subsystem Command Reference 293