Hello Al,
Thanks for replying to my question. I think I understand that I can use
unequal timsteps to get better accuracy of the waveforms.
Hyperlynx is the editor that I am using to check the Syntax of the
final IBIS file. I was just emphasizing the point that I get no syntax
error when using unequal timesteps.
Thanks,
Anshul
al davis wrote:
On Monday 27 October 2008, Anshul Bansal wrote:
I had a question regarding the timesteps for the
rising/falling waveform. Is it legal to use unequal timestep
for the rising or falling waveforms?
The use of unequal timestep is preferred. You should use more
points where they are needed to express detail and less points
in relatively flat sections.
It actually makes a difference. If your data looks like steps,
with groups of consecutive values that are the same, you are
using too many steps. It does matter.
You may not see a problem because files like that are common so
simulators will drop steps to make the waveform smooth and
simulateable.
I did not read anywhere
in the IBIS spec that prevents me from doing so. Even
Hyperlynx is able to read the IBIS file with unequal timestep
and does not give any warnings/errors.
What do you mean "even Hyperlynx" ????????
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Received on Mon Oct 27 08:54:25 2008