Adelay; Asweepx - Keithley S530 Manual

Section 3: LPTLib command reference

adelay

This command specifies an array of delay points to use with asweepX command calls.
Usage
int adelay(unsigned int delaypoints, double *delayarray);
delaypoints
delayarray
Details
The delay is specified in units of seconds, with a resolution of 1 ms. The minimum delay is 0 s.
Each delay in the array is added to the delay specified in the asweepX command. For example, if the
array contains four delays (0.04 s, 0.05 s, 0.06 s, and 0.07 s) and the delay specified in the asweepX
command is 0.1 s, then the resulting delays are 0.14 s, 0.15 s, 0.16 s, and 0.17 s.
Also see

asweepX

(on page 3-8)
asweepX
This command generates a waveform based on a user-defined forcing array (logarithmic sweep or other custom
forcing commands).
Usage
int asweepi(int instr_id, unsigned int num_points, double delay_time, double
*force_array);
int asweepv(int instr_id, unsigned int num_points, double delay_time, double
*force_array);
instr_id
num_points
delay_time
force_array
Details
The asweepX command is used with the smeasX, sintgX, or savgX commands.
The trigXl or trigXg command can also be used with the asweepX command. However, once a
trigger point is reached, the sourcing device stops moving through the array. The output is held at the
last forced point for the duration of the asweepX command. Data resulting from each step is stored in
an array, as noted above, with smeasX. After the trigger point is reached, measurements are made at
each subsequent point. Results are approximately equal because the source is held at a constant
output.
The asweepv and asweepi commands are sourcing-type commands. When called, an automatic
limit is imposed on the sourcing device. Refer to the limitX command for additional information.
3-8
S530/S540 KTE Linear Parametric Test Library (LPTLib) User's Manual
The number of separate delay points defined in the array
The name of the array defining the delay points; this is a single-dimension
floating-point array that is delaypoints long and contains the individual delay
times; units of the delays are seconds
The instrument identification code of the sourcing instrument
The number of separate current and voltage force points defined in the array
The delay, in seconds, between each step and the measurements defined by the
active measure list
The name of the user-defined force array; this is a single dimension array that
contains all force points
S530-900-01 Rev. E / September 2017