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EX1629 Command Set 169
vtex1629_get_lxibus_configuration
F
UNCTION
P
ROTOTYPE
ViStatus vtex1629_get_lxibus_configuration (ViSession vi , ViInt32 lxiLine , ViPInt32 inOut , ViPInt32
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 the LXI Trigger Bus channel for which the function will return
configuration values. Valid values: 0 to 7.
inOut = an integer return value that indicates whether the specified LXI Trigger Bus channel is configured for input
or output. Valid return values: 0 or 1.
transmissionScope = an integer return value indicating whether transmissions on the specified channel are
configured to be input from and output to the external LXI bus or will be kept internal to the EX1629. Valid return
values: 0 or 1.
D
ATA
I
TEM
R
ESET
V
ALUE
Not applicable to this function.
D
ESCRIPTION
This function queries and returns information pertaining to a specified LXI Trigger Bus channel. It determines how
the channel’s direction and scope of transmissions are currently configured.
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 indicates whether the channel is configured as an input or an output. The return 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 return value indicates 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