VTI Instruments Corp.
164
EX10xxA/RX1032/EX1044 Function Calls
vtex10xxA_get_dio_output
F
UNCTION
P
ROTOTYPE
ViStatus vtex10xxA_get_dio_output(ViSession
vi
,
ViPInt32 dio_out
);
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.
dio_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 DIO channel 7 and the LSB corresponds to DIO 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 programmed output state of the digital I/O port. This simply returns the programmed
setting. Since the outputs must be enabled, it does not necessarily represent the true output state.
E
XAMPLE
// query status of DIO bit 4
ViInt32 dio_out;
ViInt32 dio_outen;
vtex10xxA_get_dio_output(vi, &dio_out);
vtex10xxA_get_dio_output_enable(vi, &dio_outen);
if (dio_out & 0x10)
printf(“Bit 4 is set high”);
else printf(“Bit 4 is set low”);
if (dio_outen & 0x10)
printf(“Bit 4 is enabled”);
else printf(“Bit 4 is not enabled”);
Содержание EX1000A
Страница 25: ...www vtiinstruments com EX10xxA Introduction 25 FIGURE 1 2 RACKMOUNT HARDWARE INSTALLATION DIAGRAM ...
Страница 27: ...www vtiinstruments com EX10xxA Introduction 27 FIGURE 1 4 ISOMETRIC AND INTERNAL CJC PLATE DIAGRAM ...
Страница 28: ...VTI Instruments Corp 28 EX10xxA Introduction EX1044 DIAGRAM ...
Страница 29: ...www vtiinstruments com EX10xxA Introduction 29 FIGURE 1 5 EX1044 TABLE TOP USAGE ...
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