OV6680 trouble to start.

Hello,

I am using the omnivision evaluation board, please find the scheme here :

http://img32.imageshack.us/i/ov6680sensor.pdf/

My is that i can't start the chip.

What i provide to the board :
Vdd : 2.8V ; GND
A sin clock at 20Mhz on XCLK
PWDN is pull down.
The other pin are float.

What happen :  Nothing

What i except : signal on Dato 0..7 and vsync, href and pixel clock.

I don't understand my error. The chip should start to send images.
Does somebody known how to start this kind of chip.

Regards,
J.Parent

In article <-92dnQPPXduBYh7XnZ2dnUVZ_hednZ2d@giganews.com>, 
jejmule@gmail.com says...
> Hello,
> 
> I am using the omnivision evaluation board, please find the scheme here :
> 
> http://img32.imageshack.us/i/ov6680sensor.pdf/
> 
> My is that i can't start the chip.
> 
> What i provide to the board :
> Vdd : 2.8V ; GND
> A sin clock at 20Mhz on XCLK
> PWDN is pull down.
> The other pin are float.
> 
> What happen :  Nothing
> 
> What i except : signal on Dato 0..7 and vsync, href and pixel clock.
> 
> I don't understand my error. The chip should start to send images.
> Does somebody known how to start this kind of chip.

I would suggest looking at the datasheet for the board, especially
the Reset signal as no doubt you are one way or another holding the
camera in reset mode.

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