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-   -   memory (http://www.fpgacentral.com/group/showthread.php?t=43481)

Mandilas Antony 06-29-2003 08:57 AM

memory
 
i use spartan-II and verilog. i have the following problem

i want to write a dual port memory module, but i want to preload it with
some values in some specific memory locations. I have written some code
for the first part of it. but i can not do it some way to preload values
. Does anyone has any idea?

Best regards
Antony


Rajkumar 07-01-2003 10:25 PM

Re: memory
 
Mandilas Antony <[email protected]> wrote in message news:<[email protected]>...
> i use spartan-II and verilog. i have the following problem
>
> i want to write a dual port memory module, but i want to preload it with
> some values in some specific memory locations. I have written some code
> for the first part of it. but i can not do it some way to preload values
> . Does anyone has any idea?
>
> Best regards
> Antony


Hi!
Xilinx Spartan II has BlockRAM support, So use their coregen utility to
generate the Dual port RAM/ROM according to your requirement.
If it is an RAM and you want to preload data, you have to have an external logic
to do so.

Rajkumar...

pranav 07-03-2003 11:28 AM

Re: memory
 
>
> Hi!
> Xilinx Spartan II has BlockRAM support, So use their coregen utility to
> generate the Dual port RAM/ROM according to your requirement.
> If it is an RAM and you want to preload data, you have to have an external logic
> to do so.
>
> Rajkumar...


I think you can preload the memory locations with the value of your
choice. This facility is also available in coregen utility. But i am
not sure whether you can preload only particular memory locations with
the value of your choice. I used to work on this sort of things two
years back so may be my memory have faded a bit but anyway try it out.
pranav

Jon 07-03-2003 04:07 PM

Re: memory
 
Yes you can preload rams using coregen. You can specify a file that
contains the ram values to preload into memory. Or you can use the
FPGA editor to do it manually but that is a lot harder.

Jon

[email protected] (pranav) wrote in message news:<[email protected] com>...
> >
> > Hi!
> > Xilinx Spartan II has BlockRAM support, So use their coregen utility to
> > generate the Dual port RAM/ROM according to your requirement.
> > If it is an RAM and you want to preload data, you have to have an external logic
> > to do so.
> >
> > Rajkumar...

>
> I think you can preload the memory locations with the value of your
> choice. This facility is also available in coregen utility. But i am
> not sure whether you can preload only particular memory locations with
> the value of your choice. I used to work on this sort of things two
> years back so may be my memory have faded a bit but anyway try it out.
> pranav



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