getting constant from an external file

[Serkan]

Dear Veterans,

I have some constant integers that I want to assign different values
for each synthesis using an external file.
Is there any example or link? It will be very much appreciated.
Thanks.

Serkan

PS: please do not just offer "use generic statement or package or tcl
script", I need example.

 

[Serkan]

Please ignore the post
I was able to do it using package.
Comments other than package usage are welcome

Serkan

 

[Andy]

Most tools allow setting the value of top level generics. This can be
done by command line or gui in different tools.

You must define a default value for the generic on the top level
entity, and that value will be used if not overridden either by the
tool or by a yet-higher-level (e.g. wrapper, etc.) architecture.

Andy

 

[rickman]

Most tools allow setting the value of top level generics. This can be
done by command line or gui in different tools.

You must define a default value for the generic on the top level
entity, and that value will be used if not overridden either by the
tool or by a yet-higher-level (e.g. wrapper, etc.) architecture.

Andy

I used top level generics in the Active-HDL simulator, but I could not
find a way to set the top level generics in the Lattice synthesis
tools. So I always had to make sure the top level generic was set
correctly in the file when building the chip.

Rick

 

[whygee]

Hi all,
It's amusing that this thread has stuck in my mind,
I couldn't find an option in GHDL to do this.

I used top level generics in the Active-HDL simulator, but I could not
find a way to set the top level generics in the Lattice synthesis
tools. So I always had to make sure the top level generic was set
correctly in the file when building the chip.

Rick

I just wrote this tonight :
http://ygdes.com/GHDL/ghdl_env/
it's specific to GHDL but it's damn handy,
the generics can be set from the
host system's environment variables

yg