VHDL / Verilog Combination

Hi,

I scanned the Mailing List Archive and figured out that the code that
goes
inside USRP FPGA is Verilog code.

I personally know VHDL and was looking to make some changes to the FPGA
code.

I was wondering if it is possible for the existing (USRP’s) Verilog and
my
VHDL code to co-exist ? If yes, than do I need to make some special
changes
to the existing USRP Verilog code for both to coexist?

Or would it be advisable to code my new module in Verilog only?

Please excuse me if this sounds like a beginner questions.

Thanks.

S. Mande.

On 9/11/07, S Mande [email protected] wrote:

VHDL code to co-exist ? If yes, than do I need to make some special changes
to the existing USRP Verilog code for both to coexist?

Quartus can do mixed-mode synthesis meaning you can have both VHDL and
Verilog code as long as they are in different modules. You will want
to read exactly how Quartus does it all, but it is in fact possible.

Or would it be advisable to code my new module in Verilog only?

It is advisable to just learn the Verilog. VHDL is a much more
difficult language to understand due to the strict typing rules. If
you can understand and write synthesizable VHDL, picking up Verilog
should be a snap.

In summary: you can write VHDL if you want to deal with the headaches
associated with it, but learning Verilog (since you already know VHDL)
should be much easier and produce a lot less headaches.

Brian

Thank you Brian !

You have been a great help !

-S. Mande

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