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-   -   microblaze and external RAM (http://www.fpgacentral.com/group/showthread.php?t=66141)

Frank 10-13-2003 02:14 PM

microblaze and external RAM
 
Question: when I want to use a microblaze with external SDRAM, I guess I
just have to connect an opb sdram controller to the instruction and data bus
of the microblaze?! But how is my code coming into sdram? Do I have to write
a sort of bootloader (running in block ram) that gets the program from flash
to sdram or something? Or are there other ways to handle this.

TIA,
Frank



Jaytersen 10-13-2003 11:52 PM

Re: microblaze and external RAM
 
In article <[email protected]>,
"Frank" <[email protected]> wrote:

> Question: when I want to use a microblaze with external SDRAM


>But how is my code coming into sdram? Do I have to write
> a sort of bootloader
>
> TIA,
> Frank
>

You could hardwire a small rom component in vhdl, containing a small
program, that could get the microblaze to transfer a bigger program
between a flash module and the sram, and then jump to where ever you
want to start in the sram.

--

Jaytersen


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