Frame grabber

[Kristian]

I need a frame grabber for this http://www.quasarelectronics.com/c3188a.htm
Omnivision camera module with digital output. Where can I find such a thing?
I basically want to dump still images from the camera output stream to RAM,
and be able to access this data with a microcontroller. Is there maybe a
better way to do this?

Kris

 

[William P.N. Smith]

"Kristian" <not@vailable.not> wrote:

I need a frame grabber for this http://www.quasarelectronics.com/c3188a.htm

Why? It's outputting data, just use your micro to stuff it into RAM.
You'll want to look up CCIR601 for the format it's in, but it's pretty
much two parallel 8-bit busses with a clock and some sync bits.
Depending on your application, you might want to remove the crystal
and provide your own clock, and/or put it into QVGA mode to slow down
the data to a rate more easily handled by your micro. In 'normal'
mode the pixel clock is 13.5 or 27 MHz (half that in QVGA).

[A dual-port frame buffer to interface to your micro is going to be
another whole project...]

--
William Smith
ComputerSmiths Consulting, Inc. www.compusmiths.com

 

[Kristian]

Why? It's outputting data, just use your micro to stuff it into RAM.

Do you think an atmega169 could do this, or is it too slow?

 

[William P.N. Smith]

"Kristian" <not@vailable.not> wrote:

Do you think an atmega169 could do this, or is it too slow?

Dunno, how fast can it read a couple of bytes and stuff them into RAM?

--
William Smith
ComputerSmiths Consulting, Inc. www.compusmiths.com