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Old 07-04-2009, 07:07 PM
MikeWhy
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Default Re: how to use ram or memory


"The Lord of War" <[email protected]> wrote in message
news:[email protected] ...
> >On Jul 4, 3:19=A0am, "The Lord of War" <maa105....@gmail.com> wrote:
>>> Sadly I'm on my own, and what I'm trying to do is sample an analog

> signal
>>> save is in digital form in some kind of buffer (here comes the sram

> role)
>>> and then read it back after some time and convert it back to analog,

> thus
>>> producing a delay that can be controlled. and I need to do long delays

> so=
>> I
>>> nee a big buffer or memory. I checked the xilinx website there is no
>>> mention on the use of the onboard ram, so if any one have a lead on

> the
>>> subject please help, I need to know HOW to do this, a tutorial is good

> to=
>>o.
>>> I'll keep searching and I'll post if I find anything new.
>>>
>>> regards

>>
>>Maybe I missed something, but what board are you using? Are you
>>asking for help with the board you have or ZBT ram in general, or are
>>you asking for help with the HDL? Or maybe all three?
>>
>>Rick
>>

>
> i'm using virtex 4 board 405/6 and on the board is a sram chip and it is
> ZBT, this sram is on the same board so I need not wire any external
> circuit since the sram module is on the same board, I'm coding using VHDL
> and all I need to know is HOW can I use this sram module -which is on the
> same board . so HOW e.g. a function call or a built in library with some
> entity that uses the onboard ram or how can I access this ram?? (what do i
> need to do)


Google on "zbt sram", among the first few hits:
http://www.xilinx.com/support/docume...es/xapp136.pdf

Also for the same search:
http://www.opencores.org/?do=project...ram_controller


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