User`s guide

Programming via GPIB and VXI 4
Agilent VISA User’s Guide 103
Using viIn and viOut
When using the viIn and viOut high- level memory functions
to program to the device registers, all you need to specify is
the session identifier, address space, and the offset of the
register. Memory mapping is done for you. For example, in
this function:
viIn32(vi, space, offset, val32);
vi is the session identifier and offset is used to indicate the
offset of the memory to be mapped. offset is relative to the
location of this device's memory in the given address space.
The space parameter determines which memory location to
map the space. Valid space values are:
•VI_A16_SPACE - Maps in VXI/MXI A16 address space
•VI_A24_SPACE - Maps in VXI/MXI A24 address space
•VI_A32_SPACE - Maps in VXI/MXI A32 address space
viOut16(vi, space, offset, val16); Writes 16 bits of data to the specified
offset.
viOut32
(vi, space, offset, val32); Writes 32 bits of data to the specified
offset.
viMoveIn8(vi, space, offset,
length, buf8);
Moves an 8-bit block of data from the
specified offset to local memory.
viMoveIn16(vi, space, offset,
length, buf16)
;
Moves a 16-bit block of data from the
specified offset to local memory.
viMoveIn32(vi, space, offset,
length, buf32)
;
Moves a 32-bit block of data from the
specified offset to local memory.
viMoveOut8(vi, space, offset,
length, buf8);
Moves an 8-bit block of data from local
memory to the specified offset.
viMoveOut16(vi, space, offset,
length, buf16)
;
Moves a 16-bit block of data from local
memory to the specified offset.
viMoveOut32
(vi, space, offset,
length, buf32);
Moves a 32-bit block of data from local
memory to the specified offset.
Table 25 Summary of High-Level Memory Functions