Keithley 4200A-SCS Reference Manual page 963

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Section 13: LPT library function reference

pulse_step_linear

This command configures the pulse stepping type.

int pulse_step_linear(int instr_id, int chan, int StepType, double start, double

stop, double step);

The relationship between a step function and a sweep function for SMUs is illustrated in

mode timing diagrams

Operation Mode (PMU)

sweep is performed on another terminal.

A pulse_step_linear function cannot be used by itself. At least one PMU channel in a test must

be a valid pulse_sweep_linear function call. The last three sweep types are for pulse dual

Use the start, stop, and step parameters to configure stepping. In addition, ensure that all pulse

parameters are set before calling the pulse_sweep_linear or pulse_step_linear function. For

example, when performing a pulse amplitude sweep (PULSE_AMPLITUDE_SP), use pulse_vlow to

set the base voltage.

The instrument identification code: VPU1, VPU2, PMU1, PMU2, and so on

Channel number of the pulse generator: 1 or 2

PULSE_AMPLITUDE_SP: Sweeps pulse voltage amplitude

PULSE_BASE_SP: Sweeps base voltage level

PULSE_DC_SP: Sweeps DC voltage level

PULSE_PERIOD_SP: Sweeps pulse period

PULSE_RISE_SP: Sweeps pulse rise time

PULSE_FALL_SP: Sweeps pulse fall time

PULSE_WIDTH_SP: Sweeps FWHM (full-width half-maximum) pulse width

PULSE_DUAL_BASE_SP: Dual sweeps base voltage level

PULSE_DUAL_AMPLITUDE_SP: Dual sweeps pulse voltage amplitude

PULSE_DUAL_DC_SP: Dual sweeps DC voltage level

Initial value for stepping

Final value for stepping

Step size for stepping

(on page 3-36). The step/sweep relationship for pulsing is similar (see

(on page 6-63)). While a terminal of a device is at a pulse step, a pulse

Dual Sweep Option

(on page 6-71)).

Model 4200A-SCS Parameter Analyzer Reference Manual

4200A-901-01 Rev. C / February 2017