Re: Aximx30-port Digest, Vol 5, Issue 11

after looking at the documentation it says the pxa is
fed into the 2700g chipset (in the pictures anyway)
however this only sound 1/2 right as i remeber
'picard' who works on betaplayer talking about this

he did all the rendering of divx moives in the 2700
(all his code is open sourced so you might want to
take a peek) but i dont belive he transfered the data
back to the pxa frame buffer

however if you used the vga cable with betaplayer it
was very slow because it had to copy frames back to
the pxa framebuffer from the 2700 but if you just
displayed on the one screen (vga or pxafb take your
pick) then it was fast

refering to the doc's for the chip we can see that
would be the good old 2 headed problem of no grapghics
acceleration for pxafb rearing its head that i talked
about last time, and scince betaplayer was very
twitchy when it came to memorey performance it would
cause slow rendering

so as far as i can tell putting this all together the
pxa framebuffer ***might*** be routed throgh the
27000 chip and i belive the 2700 has 1 input for that
and 2 outputs for scrrens. this means that the pxa
could have accsess to the acceleration from the 2700
when one screen is in use and allow the 2700 to act as
a pass throgh device when switching to dual head
causing acceleration on the 2nd port

i will look into this more

in the mean time whats up on the x30, anyone done any
more work on it? plus how did you get the pxafb up and
running as i have to get it working on my c3000 (its
running 2.4 not 2.6 :()

Jay Coles
JayColes_at_yahoo.com

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Received on Wed May 25 2005 - 13:29:48 EDT