Zynq-7020 SoC on-chip-memory

Warner Losh imp at bsdimp.com
Thu Mar 19 19:38:27 UTC 2015


> On Mar 19, 2015, at 1:19 PM, Thomas Skibo <ThomasSkibo at sbcglobal.net> wrote:
>> Any advice on how to add this memory to my system?
> 
> I think it might be more trouble than it’s worth.

I do too. I tried back in the day to map Atmel’s small cache of RAM into the OS
as well. It didn’t go well.

You likely don’t want to use this 256kB for general purpose memory anyway. You’ll
likely want to use it for something special. For Atmel, I was looking at running interrupt
handlers and/or ethernet packets through that memory… There were issues with doing
either one of these that I can no longer recall...

Warner

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