Re: [microblaze-uclinux] hardware platform

[emanuel stiebler <emu@ecubics.com>]

John Williams wrote:
> 
> emanuel stiebler wrote:
> 
>> You're right. I would consider a Virtex board my choice for ucLinux ...

Sorry for that one. It should read "wouldn't" ...
:-(

> Probably, although in the long run we certainly intend to get useful 
> uclinux-based embedded systems running on spartans as well - but it 
> might be a bit tight as a starting point.

What I was trying to say was, that if you go for the expensive big 
parts, then there is the PowerPC core in the VirtexII Pro.

So I try to concentrate on the Spartan IIe & III for the microblaze.

>> I have one of my own lying somewhere around, I have to check the 
>> schematics again. (SpartanII, 300e, with SDRAM, SRAM & FLash)
> 
> If this Spartan can support a microblaze with an external memory 
> controller, timer, interrupt controller and a uart lite, then in 
> principle it can run uclinux.  They are the "required peripherals" so far.

I'll check in the next days ...

> Seriously though I think it should be fine, I simply haven't got around 
> to building a hardware target with the OPB DDR contoller yet.  On the 
> uclinux side it should be pretty straight forward, I'd just create a new 
> platform version and set the memory map accordingly.  uclinux is kind of 
> nice like that, once you know where to start.


> Cool - what's your uclinux background, if I may ask?

Not really uclinux, but a lot of others.
(embedded linux on PowerPC for one ...)


> Once we get network support happening it will be a completely different 
> story... but one thing at a time :)

I don't need Ethernet for my application. But if I find some spare pins, 
probably I think about it. It's always much easier to debug using 
ethernet ...

cheers


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