[SOLVED] HSPICE simple simultaneous usage of SWEEP and measure statement

[dnanar]

Hi,


I'm trying to learn how to use HSPICE through some tutorials and the reference manual but I'm running into a problem that I can't solve.

I want to know how my circuit responds for various input voltages through time:

.tran 0.01p Tsimu SWEEP vdd 0.15 0.85 0.10

However, I want to get the timing when some signal s15 arrives at 0.9*vdd so I do (the first line is just to display vdd*0.9):

.measure TRAN vdmax PARAM = 'vdd*0.9'
.measure TRAN t WHEN V(s15) = vdmax RISE=1

My problem is that the value for vdmax stays always identical to the value in the first sweep... (stuck to 0.15*0.9). Does anyone know how to solve this? What is the proper way to do that please?


Thanks!

 

[erikl]

.measure TRAN vdmax PARAM = 'vdd*0.9'
.measure TRAN t WHEN V(s15) = vdmax RISE=1

My problem is that the value for vdmax stays always identical to the value in the first sweep... (stuck to 0.15*0.9). Does anyone know how to solve this? What is the proper way to do that please?

I'm not sure, but perhaps PARAM is just in the wrong statement?

.measure TRAN vdmax = 'vdd*0.9'
.measure TRAN t WHEN V(s15) PARAM = vdmax RISE=1

 

[dnanar]

Thanks, that was it!