HSPICE error message please help.

[ravichandar]

time: command terminated abnormally hspice

Hi, I am trying to simulate the ADC i have designed using Hspice. I have a clock running at 20Mhz. i.e a period of 50 ns. I need the simulation to run till 100 milli seconds becuase i am using a current mirror ramp generator for generating a ramp vooltage which requires that much time for producing a ramp output as i am using a 1 uf capacitor for charging.

When i try to simulate in Hspice using .Tran 1n 1m ( i ran it for 1 milli sec with a step of 1 ns) ( i tried a step of 10ns also)

it takes 4-5 hours for simulation and then it stops with an error message saying
**error** error happens when writing waveform for POST=1
time: command terminated abnormally.

Is it because of the memory problem? Can anybody please help how to solve this issue?

Thanks,
RC.

 

[tch77_pt75]

Maybe you should try to cut down on the simulation time to determine whether do you still encounter the same problem.........Hope it helps

 

[jeffsky520]

I met the same question and didn't know the reason.
Maybe it's not related to simulation time, because my transit time is just 5us with 1ns time step.

 

[tch77_pt75]

I think it is worth a try.

Also, what happen when you do not use the: .option post=1? Do you still face the same problem?