Re: [Discuss-gnuradio] Status of BTTV/CX88 capture

[Cory Papenfuss]

> You were saying some time back that bt878 can't
> capture continuous data, did you manage to get
> continuous mode on the bt878?

	I looked into it awhile back, but I've only *got* a bt878 card... 
no cx88.  IIRC, the reason the cx88 can do it is it has an additional 
command for the continuous capture.  The bt878 can only get raw data out 
by pretending it's VBI data.  That inherently uses the sync part of the 
chip and doesn't capture data when it thinks there should be a sync.  That 
leave holes, etc.

	If the cx88 really can capture continous raw, it would be a great, 
inexpensive way to get to play with gnuradio.

	Also, IIRC the pchdtv cards use the cx88 chip.  I don't know if 
the digital demod is general-purpose enough, but maybe a looksee through 
that code could help, too?

just a though,

-Cory

--

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* Cory Papenfuss                                                        *
* Electrical Engineering candidate Ph.D. graduate student               *
* Virginia Polytechnic Institute and State University                   *
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