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PROBLEM WITH CAMERA OV2640

Diana Aldama
Prodigy 40 points

Hi TI,

right now, I'm trying start up the camera OV2640, but  the camera doesn't work.

I don't know if it's a power problem, if the camera is damage or if I'm missing something in the initialization of the camera.

Voltage power suppy:

       AVDD =3V

       DVDD=1.3V

       DOVDD=3V

AVDD and D0VDD are separated by R/C filter, as shown in "OV2640 Camera Module Hardware Application Notes".

SCCB bus =1,8V

XCLK=24MHz external oscillator.

Initialization on OV2640:

     XCLK=active

      PWDR=low

     RESET=high

     SCCB_CLK=high

     SCCB_DATA=high

After initialization, PCLK should be running, and HREF,VSYNC AND d[9:0] generate output, but that didn't happen.

I also tried to read and write registers of the camera and it has been impossible.

Could someone tell me if I'm doing something wrong or if the camera is damage.
The test I have done with several cameras.

Thanks,

Diana.

  • 0
    TI__Genius 13475 points

    Diana

    Are you trying to use the Arduino OV2460 Camera module? - Have you contacted OmniVision applications engineering?

    Mark Sauerwald

    Texas Instruments

  • 0 in reply to Mark Sauerwald88474
    Prodigy 40 points

    Hi Mark, 

    Thanks for you answer , 

    Camera suppliers tell us that the camera is the "OV2640" 

    The reference that is written in the camera is "HDF3M-811".

    You know whether this reference is the reference of  the OV2640 camera?

    I think two things, or that the camera we have sold is not the OV2640 or the cameras are damage.

    I have contacted to the Omnivision technical service but have not yet received a reply.

     

    Regards,

    Diana.

  • 0 in reply to Diana Aldama
    TI__Genius 13475 points

    Diana

    The HDF3M-811 module is not a TI product - I think that it uses an OmniVision sensor in it.

    I also see another thread that seems to be on this same issue, that Jason Blackman has been handling, so let's continue the discussion over there, rather than having the discussion split across the two threads.

    Mark