Daniel Rozsnyó wrote:
Dieter wrote:
There are applications where you would want the card some distance
from the computer.
a) If it had a IEEE 1394 (firewire) interface, you could hook up
several cards without running out of slots.
b) Ethernet would allow much longer distances than firewire,
Is there a way to provide Ethernet without having to add a CPU,
memory, ROM, etc. ?
I would prefer USB2 (it's everywhere, and I really do not have a IEE1394
port) or using GbE (gigabit ethernet), the 100mbit is too slow for a
good video, even non-hd, in yuv.
Connecting e.g. an RTL8169 should not be a problem - the OGP has a lot
of user IO, but I think, that the software which supports at least
IP/UDP (required for DHCP + data transfer) would cost a lot of FPGA
gates - so you rather use a separate CPU.
there are pre-existing standards for digital video, which are defined by
the SMPTE
http://www.jkor.com/peter/smpte.html
SMPTE 259M for Standard Definition video (aka pal/ntsc)
SMPTE 274M for HDTV.
These should be the prefered output formats and allow for transmitting
the signal up to 100m away (305 ft)
I hope that in the future, there will be an option to exchange the PCI-X
interface for USB or GbE, drop the analog part and even the tmds
transmitters and use LVDS as it is native for LCD's.
Daniel
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