Re: OV6680 trouble to start.



In article <-92dnQPPXduBYh7XnZ2dnUVZ_hednZ2d@xxxxxxxxxxxx>,
jejmule@xxxxxxxxx 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.

--
Paul Carpenter | paul@xxxxxxxxxxxxxxxxxxxxxxxxxxx
<http://www.pcserviceselectronics.co.uk/> PC Services
<http://www.pcserviceselectronics.co.uk/fonts/> Timing Diagram Font
<http://www.gnuh8.org.uk/> GNU H8 - compiler & Renesas H8/H8S/H8 Tiny
<http://www.badweb.org.uk/> For those web sites you hate
.



Relevant Pages

  • OV6680 trouble to start.
    ... I am using the omnivision evaluation board, please find the scheme here: ... A sin clock at 20Mhz on XCLK ... The chip should start to send images. ...
    (comp.arch.embedded)
  • Re: How to test/calculate the period of a 32bit RNG?
    ... Hardware (mouse, chip ... noise, etc) or some other scheme? ... radiation, or perhaps a mouse wiggling thing that PGP uses to get ...
    (sci.crypt)
  • Re: two USB slave:Interface
    ... shall I have two chip one hub chip and one ... master chip to do the transfer? ... For the "USB OTG" scheme, is the OTG a matured technology and is there ...
    (sci.electronics.design)
  • Re: two USB slave:Interface
    ... shall I have two chip one hub chip and one ... master chip to do the transfer? ... For the "USB OTG" scheme, is the OTG a matured technology and is there ...
    (comp.arch.embedded)
  • Re: two USB slave:Interface
    ... shall I have two chip one hub chip and one ... >For the "USB OTG" scheme, is the OTG a matured technology and is there ...
    (comp.arch.embedded)