Re: [microblaze-uclinux] Re: new board, insufficient RAM

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

John Williams wrote:
> Hi Badri,
> 
> Unfortunately I don't think this will be possible - according to the 
> datasheet this SRAM chip is only 256K x 16 bit, or 128Kbyte - that's not 

oops sorry 512Kbyte of course (that will teach me to post before I have 
my morning coffee!)

So, half a meg is getting better, but still not enough for uClinux 
without some significant hacking and trimming down.  If you really are 
limited to this board/SRAM, you might be better with something like eCos 
or similar.

Have you considered putting two of these devices in parallel, to make 
256K x 32 bit words (1Mbyte)?  The Xilinx mememory controller peripheral 
should be able to drive it easily, and so you could probably get a small 
kernel and apps in there.  Also some flash memory would help, or at the 
very least a serial port so it can talk to the outside world.

If you have a meg to play with, then it might be worth trying to trim 
down the kernel.

Regards,

John
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