B
Bob Penoyer
Guest
I'm having trouble using/understanding the use of DigStim.
DigStim1 under Capture appears to offer analog functions (EXP, PULSE,
PWL, SFFM, and SIN) as well as digital functions (Clock, Signal, Bus)
options in the New Stimulus window. But when I create an analog
stimulus and run PSpice, I get meaningless output.
For example, if I create a PULSE stimulus and simply connect a probe
to the output, I get a digital probe output (with a black probe at the
output) in which the logical output appears to be indeterminate. If I
connect the DigStim1 output to a resistor to ground, the probe is then
green (i.e., analog) but the result is a constant voltage of about
1.35V for a set of 3.5V pulses.
PULSE, EXP, etc. plot out in the DigStim1 editor as expected after
completing the Attributes assignments. But I don't see these
characteristics when I run PSpice.
What, if anything, am I doing wrong?
DigStim1 under Capture appears to offer analog functions (EXP, PULSE,
PWL, SFFM, and SIN) as well as digital functions (Clock, Signal, Bus)
options in the New Stimulus window. But when I create an analog
stimulus and run PSpice, I get meaningless output.
For example, if I create a PULSE stimulus and simply connect a probe
to the output, I get a digital probe output (with a black probe at the
output) in which the logical output appears to be indeterminate. If I
connect the DigStim1 output to a resistor to ground, the probe is then
green (i.e., analog) but the result is a constant voltage of about
1.35V for a set of 3.5V pulses.
PULSE, EXP, etc. plot out in the DigStim1 editor as expected after
completing the Attributes assignments. But I don't see these
characteristics when I run PSpice.
What, if anything, am I doing wrong?