[Sense:]Data:fifo:count; [Sense:]Data:fifo:count:half - VXI VT1422A User Manual

[SENSe]
Usage
Command
Sequence

[SENSe:]DATA:FIFO:COUNt?

Comments
Usage

[SENSe:]DATA:FIFO:COUNt:HALF?

Comments
Command
Sequence
334 VT1422A Command Reference
•
Related Commands: SENSE:DATA:FIFO:HALF?, ROUT:SEQ:DEFine
•
*RST Condition: FIFO is empty
•
Use VXIplug&play function: hpe1422_readFifo_Q(...)
DATA:FIFO?
set up scan list/algorithms and trigger
SENSE:DATA:FIFO:ALL?
now execute read statement

[SENSe:]DATA:FIFO:COUNt?

FIFO buffer.
•
DATA:FIFO:COUNT? is used to determine the number of values to acquire with
the DATA:FIFO:PART? command.
•
Returned Value: Numeric 0 through 65,024. The data type is int32.
•
Related Commands: DATA:FIFO:PART?
•
*RST Condition: FIFO empty
•
Use VXIplug&play function: hpe1422_sensDataFifoCoun_Q(...)
•
Send with VXIplug&play Function: hpe1422_cmdInt32_Q(...)
DATA:FIFO:COUNT?

[SENSe:]DATA:FIFO:COUNt:HALF?

(contains at least 32,768 values) or 0 if FIFO is less than half-full.
•
DATA:FIFO:COUNT:HALF? is used as a fast method to poll the FIFO for the
half-full condition.
•
Returned Value: Numeric 1 or 0. The data type is int16.
•
Related Commands: DATA:FIFO:HALF?
•
*RST Condition: FIFO empty
•
Send with VXIplug&play Function: hpe1422_cmdInt16_Q(...)
DATA:FIFO:COUNT:HALF?
DATA:FIFO:HALF?
return all FIFO values until
measurements complete and FIFO empty
read statement does not complete until
triggered measurements are complete
and FIFO is empty
returns the number of values currently in the
Check the number of values in the
FIFO buffer
returns a 1 if the FIFO is at least half full
poll FIFO for half-full status
returns 32768 values
Chapter 7