Racal Instruments 3156B, Руководство пользователя

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3156B User Manual
Programming Reference 5-130 Racal Instrument © 2005
Ri3156b_load_dig_pattern_stim_list
Description
This command will download the data arrays for the Freerun digital patterns. For freerun digital patterns, one
can program variable hold count for each pattern. The hold count defines the dwell time per pattern.
Below you can see how a Freerun digital pattern table is constructed. The sample below shows a list of 10
patterns and their associated hold counts. The 3156B will step through this list, outputting the next pattern each
time it hop to the next step at a rate programmed by the ri3156B_set_dig_patter_rate() function call and the
hold count set by the ViInt32 digitalPatternHoldCountList[]) argument.
Channel Dependency: Independent
Sample Digital Patters Arrays – Freerun Mode
Digital Pattern Array: 0x001 0x100 0x203 0x400 0x805 0xD00 0xA07 0x118 0x0FD 0x010
Hold Count Array: 100 200 333 44 50 600 707 8 90 1000
C Syntax
ViStatus ri3156b_load_dig_pattern_stim_list (ViSession instrHandle, ViInt16 digitalPatternStimList[],ViInt32
digPatternStimListSize, ViInt32 digitalPatternHoldCountList[])
Parameters
Name
Variable
Type
Description
instrHandle ViSession The Instrument Handle is used to identify the unique
session or communication channel between the driver
and the instrument. If more than one instrument of the
model type is used, this will be used to differentiate
between them. Note that the initialize function may be
used to associate multiple instrument handles with a
single instrument.
digitalPatternStimList
ViInt16[]
Points to an array of patterns. Pattern values are in hex
format.
Valid Range: 0 to 0xFFF (12-bit)
digPatternStimListSize
ViInt32
Defines the number of digital pattern steps are included
in the table. This number must match the number of
patterns in the data and in the hold count arrays.
Valid Range: 1 to 523264
digitalPatternHoldCountList
ViInt32[]
Points to an array of hold count values. Each hold count
is associated with a pattern step and therefore, the array
size must match the number of patterns.