VTI Instruments EX1629, Руководство пользователя

Страница: 268 / 346

VTI Instruments Corp.
268 EX1629 Command Set
vtex1629_set_lxibus_configuration
F
UNCTION
P
ROTOTYPE
ViStatus vtex1629_set_lxibus_configuration (ViSession vi , ViInt32 lxiLine , ViInt32 inOut , ViInt32
transmissionScope );
F
UNCTION
P
ARAMETERS
vi = contains a session handle to the instrument. This handle is obtained by the function and remains valid until the
session is closed.
lxiLine = an integer input value that indicates which LXI Trigger Bus channel the function will configure. Valid
input values: 0 to 7.
inOut = an integer input value that indicates whether the specified LXI Trigger Bus channel will be configured for
input or output. Valid input values: 0 or 1.
transmissionScope = an integer input value indicating whether transmissions on the specified channel will be input
from an output to the external LXI bus, or will be kept internal to the EX1629. Valid input values: 0 or 1.
D
ATA
I
TEM
R
ESET
V
ALUE
inOut = 0 transmissionScope = 0
D
ESCRIPTION
This function configures several characteristics of a specific LXI Trigger Bus channel. Specifically, it configures
channel direction and the scope of transmissions.
Decimal
Value
Hex
Value
#define Symbol lxiLine Description
0 0x00 VTEX1629_LXI_LINE_ZERO LXI LINE 0
1 0x01 VTEX1629_LXI_LINE_ONE LXI LINE 1
2 0x02 VTEX1629_LXI_LINE_TWO LXI LINE 2
3 0x03 VTEX1629_LXI_LINE_THREE LXI LINE 3
4 0x04 VTEX1629_LXI_LINE_FOUR LXI LINE 4
5 0x05 VTEX1629_LXI_LINE_FIVE LXI LINE 5
6 0x06 VTEX1629_LXI_LINE_SIX LXI LINE 6
7 0x07 VTEX1629_LXI_LINE_SEVEN LXI LINE 7
The inOut parameter configures the direction of the LXI Trigger Bus channel. The permissible values indicate the
following:
Decimal
Value
Hex
Value
#define Symbol inOut Description
0 0x00 VTEX1629_LXI_INPUT Input
1 0x01 VTEX1629_LXI_OUTPUT Output
The transmissionScope parameter indicates whether the specified LXI channel is configured to communicate with
other devices on the external LXI bus or simply configured to communicate on the internal LXI bus. In the case of
an output, the
transmissionScope indicates whether the output will be driven out onto the external LXI bus in
addition to being driven on the internal LXI bus. In the case of an input, the transmissionScope determines if the
input is read from the external bus or read from the internal bus. The permissible values indicate the following:
Decimal
Value
Hex
Value
#define Symbol transmissionScope Description
0 0x00 VTEX1629_LXI_INTERNAL LXI bus signal routed internally
1 0x01 VTEX1629_LXI_INTERNAL_EXTERNAL LXI bus signal routed internally and
externally