Re: [openrisc] Success!

["Damjan Lampret" <lampret@opencores.org>]

So far nobody seriously looked at the bogomips, I think it gets calculated
incorrectly (at 25MHz with caches enabled it says something like 2 bogomips
which is kind of stupid ...). Probably somebody would have to check the
timer...

regards,
Damjan

----- Original Message ----- 
From: "Damon Brantley" <brantley@mcloudteleco.com>
To: <openrisc@opencores.org>
Sent: Friday, August 08, 2003 7:16 AM
Subject: [openrisc] Success!


> Just thought I would let everyone know that I have finally gotten uClinux
> to run on my Digilent board with a 300K Spartan. I did have to build an 8M
> DRAM board since the Digilent board does not have any memory.
> Basically I have synthesized the openrisc cpu with no cache, no
> multiplier, the uart 16550, a trimmed down traffic cop and an sdram
> controller that I wrote. Gate utilization is currently at 95% according to
> xst, but I think there are a few unused bits and pieces I can remove to
get
> the utilization below 90%.
> The cpu is clocking at 25Mhz and the dram at 50Mhz. The BogoMips are at
> .81 which is pretty abysmal, but the slowness is due to the  dram
> controller. I wrote it for simplicity rather than efficiency.
> If there is interest I can organize and post my work into cvs.
> This configuration will not operate standalone, but if someone wanted a
> low budget way to experiment with uclinux on openrisc, it is possible.
>
> --
> To unsubscribe from openrisc mailing list please visit
http://www.opencores.org/mailinglists.shtml

--
To unsubscribe from openrisc mailing list please visit http://www.opencores.org/mailinglists.shtml