how to use fpga memory. please help me.........

[hari10]

hi..i want to use fpga memory .......is there any command for doing this..if yes plz tell me........because i dont want to use register array in my program....
thnx in advance.......

 

[soloktanjung]

Use the block RAM by instantiating it in the VHDL code:

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Code VHDL - [expand]
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-- Block SelectRAM Instantiation
U_RAMB16_S36: RAMB16_S36
port map (
DI => DATA_IN (31 downto 0), -- insert 32 bits data-in bus (<31 downto 0>)
DIP => DATA_IN (35 downto 32), -- insert 4 bits parity data-in bus (or <35 downto 32>)
ADDR => ADDRESS (8 downto 0), -- insert 9 bits address bus
EN => ENABLE, -- insert enable signal
WE => WRITE_EN, -- insert write enable signal
SSR => INV_SET_RESET, -- insert set/reset signal
CLK => CLK_BUFG, -- insert clock signal
DO => DATA_OUT (31 downto 0), -- insert 32 bits data-out bus (<31 downto 0>)
DOP => DATA_OUT (35 downto 32) -- insert 4 bits parity data-out bus (or <35 downto 32>)
);

---

From https://www.es.ele.tue.nl/mininoc/doc/xapp463.pdf.

Thanks.

 

[TrickyDicky]

Or follow the HDL coding guidelines for infering ram for you intended target manufacturer, without having to directly instantiate the rams.

- - - Updated - - -

Use the block RAM by instantiating it in the VHDL code:

From https://www.es.ele.tue.nl/mininoc/doc/xapp463.pdf.

Thanks.

That is a Xilinx component, so wont work in altera.

 

[hari10]

thanx.........