[Arm-netbook] parallella

[luke.leighton]

On Sat, Jul 27, 2013 at 5:20 PM, Dr. David Alan Gilbert
<dave at treblig.org> wrote:

> ...and keep the frame buffer up to date - not sure what the bandwidth
> is like, and what the mapping to the main memory is like.

 the parallella is already doing a framebuffer by reading the DDR3 RAM
and pushing that out to a parallel-bus-to-HDMI converter IC.  DDR3 @
say 800mhz is more than enough to keep up with the 370mbytes/sec
needed for 1080p60.  sounds extreme but it's only 12% of the 800mhz
DDR3 memory bandwidth budget.  1080p30 is 6%.

> Now what about storage?

 i believe it's SPI NOR flash, on the parallella.

> PCIe or SATA or something in the FPGA - is there
> the space to do that and everything else needed?

 it's not a space issue - the 7010 and 7020 don't have the fast lane
LVDS needed, so it's a non-issue.  you'd have to go to the 7030 or put
down a JM20329 and a USB hub IC.  which is ok.  not great, but ok.

l.