VTI Instruments EX1000A, User Manual

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EX10xxA Function Calls 199
vtex10xxA_get_vtb_output_enable
F
UNCTION
P
ROTOTYPE
ViStatus vtex10xxA_get_vtb_output_enable(ViSession vi , ViPInt32 out_enable );
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.
out_enable = an integer output value in decimal that represents the output enable state of the 8-bit port. Within the
8-bit field, the MSB corresponds to LXI Trigger Bus (VTB) channel 7 and the LSB corresponds to LXI Trigger Bus
(VTB) channel 0. Valid return values: 0 through 255.
D
ATA
I
TEM
R
ESET
V
ALUE
Not applicable to this function.
D
ESCRIPTION
This function returns the output enable state of the trigger bus.
E
XAMPLE
// query status of VTB bit 4
ViInt32 vtb_out;
ViInt32 vtb_outen;
vtex10xxA_get_vtb_output(vi, &vtb_out);
vtex10xxA_get_vtb_output_enable(vi, &vtb_outen);
if (vtb_out & 0x10)
printf(“Bit 4 is set high”);
else printf(“Bit 4 is set low”);
if (vtb_outen & 0x10)
printf(“Bit 4 is enabled”);
else printf(“Bit 4 is not enabled”);