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UTOPIA and IEEE1394

Started by Yasser Attarizzi November 1, 2003
hi all
i want to capture the pictures of a digital camera by DSP via MCBSP the
camera have a IEEE1394 port and i want to read the data of IEEE1394 bye
MCBSP is there anybody having experience about that or is there any
application report on that in TI site or internet?
regards
yasser

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Yasser Attarizzi wrote :

> i want to capture the pictures of a digital camera by DSP via MCBSP the
> camera have a IEEE1394 port and i want to read the data of IEEE1394 bye
> MCBSP is there anybody having experience about that or is there any

This is mission impossible.

1/ Data rate

Basic video is running at around
147 Mbps (640*480*30*16).
There is no way to feed that in a McBSP

You can imagine to use only CIF/QVGA to go down
to 36 Mbps which is possible but still hard to do
on a McBSP, but you will need large fifos on your
capture hardware to adapt between the rate.

2/ IEEE1394 / McBSP

I know nothing like this but seems very silly
to me.
I can imagine that it could be possible to use a
1394 chip with embedded GPP such as iceLynx or
more recent chips but I wouldn't use McBSP as an
interface between the 2 chips. EMIF would be easier.

3/ Software

Managing 1394 stack on the DSP is much more
consumming than TCP/IP so it is a waste of
DSP processing power.

Orsys (www.orsys.de, distributed in US by Tranquair)
have DSP based 1394 products.

Check also Mindready, a canadian company with the
largest experience in embedded 1394 (www.mindready.com)

Best regards, Jean-Michel MERCIER

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dsp & imaging - www.ateme.com
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Tel : +33 (0)1 69 35 89 73 (direct)
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hi all
i asked about the ieee1394 and mcbsp now what about the UTOPIA can i uase
that for capuring data from ieee1394?
regards
yasser

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Yasser,
 
Is there some reason that you do not want to just hang a 1394 chip off of the B EMIF??
 
mikedunn

Yasser Attarizzi <y...@hotmail.com> wrote:
hi all
i asked about the ieee1394 and mcbsp now what about the UTOPIA can i uase
that for capuring data from ieee1394?
regards
yasser

_________________________________________________________________
Tired of spam? Get advanced junk mail protection with MSN 8.
http://join.msn.com/?pageatures/junkmail
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