Re: [microblaze-uclinux] U-boot and the Spartan s3e500revD

["Gian-Carlo Pascutto" <gcp@xxxxxxxxx>]

On Tuesday 10 March 2009 19:34:33 Sims, Jim wrote:
> Hi,
>
> I have managed to get the Petalinux reference design loaded on to my
> Spartan s3e500revD starter board. I am stumped regarding getting the
> board to boot automatically after a power cycle. I have managed to get
> U-boot and the Linux kernel into flash. But the only way I can boot Linux
> is to push download.bit to the board again using Impact. Once I do that,
> FS-boot will load, then U-boot will load from flash, then the Linux
> kernel will load from flash. But if I power cycle the board, I get
> nothing in Kermit and nothing from the httpd server until I push the
> download.bit file again. What am I missing? 

The MicroBlaze :)

The FPGA is like a RAM, not a Flash. If you power-cycle it, there will be 
nothing in there. Without a CPU, no bootloader is going to run.

> Do I have to put FS-boot or 
> download.bit into the flash too? Or should it boot from U-boot after
> powering up?

Put download.bit into the Flash.

-- 
GCP
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