how to chnage parameter by simulation time

[casey lee]

Hi,
I have an issue to change parameter by simulation time. How do I
chnage that after some certime time within a test module.


Thansk!
Casey

 

[Jonathan Bromley]

On Wed, 8 Sep 2010 10:50:44 -0700 (PDT), casey lee wrote:

Hi,
I have an issue to change parameter by simulation time. How do I
chnage that after some certime time within a test module.

You can't. Parameters are constants whose values are determined by
the elaboration process, which takes place before simulation begins.

Can you instead use an integer variable to hold the required
value? Such a variable can be initialised at the start of
simulation, and can have its value changed at any later time.
--
Jonathan Bromley