VTI Instruments EX1000A, User Manual

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VTI Instruments Corp.
166 EX10xxA/RX1032/EX1044 Function Calls
vtex10xxA_get_fifo_config
F
UNCTION
P
ROTOTYPE
ViStatus vtex10xxA_get_fifo_config(ViSession vi , ViPBoolean report_cjc , ViPBoolean report_timestamp ,
ViPBoolean report_celsius , ViPBoolean blocking_mode )
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.
report_cjc = a Boolean value indicating whether CJC temperatures will be reported in the acquisition data.
Reported CJC temperatures are always in units of ºC, regardless of the value of the report_celsius parameter. If a
“1’ is returned by this parameter, CJC temperatures will be reported in the acquisition data. If a “0” is returned, CJC
values will not be reported.
report_timestamp = a Boolean value indicating whether delta timestamps per channel will be reported in the
acquisition data. If a “1’ is returned by this parameter, timestamps per channel will be reported in the acquisition
data. If a “0” is returned, timestamps per channel will not be reported.
report_celsius = a Boolean value indicating the units the input channel is reporting data in. If a “1” is returned, the
units are Celsius (ºC). If a “0” is returned, the units are Fahrenheit (ºF).
blocking_mode = a Boolean value indicating the FIFO behavior upon reaching maximum capacity during scanning.
With blocking mode enabled, additional readings are discarded, leaving the contents of the buffer intact. With
blocking mode disabled, the buffer becomes circular, in that additional readings overwrite the oldest readings. If a
“1” is returned for this parameter, blocking mode is enabled. If a “1” is returned, blocking mode is disabled.
D
ATA
I
TEM
R
ESET
V
ALUE
Not applicable to this function.
D
ESCRIPTION
This function returns the data format and overflow behavior of the FIFO memory.
NOTE Regardless of the settings of the report_cjc and report_timestamp parameters, the CJC
temperature and delta timestamp information is not accessible through the vtex10xxA_read_fifo
function. They are available through the streaming interface and the parameter settings apply for it.
E
XAMPLE