VTI Instruments EX1000A - Vtex10 Xxa_Get_Vtb_Output

VTI Instruments Corp.
198 EX10xxA/RX1032/EX1044 Function Calls
vtex10xxA_get_vtb_output
FUNCTION PROTOTYPE
vtex1048_get_vtb_output(ViSession vi, ViPInt32 vtb_out);
FUNCTION PARAMETERS
vi = contains a session handle to the instrument. This handle is obtained by the function and remains valid until the
session is closed.
vtb_out = an integer output value in decimal that represents the programmed output 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.
DATA ITEM RESET VALUE
Not applicable to this function.
DESCRIPTION
This function returns the programmed output state of the trigger bus. This simply returns the programmed setting.
Since the outputs must be enabled, it does not necessarily represent the true output state.
EXAMPLE
// 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”);