Hardware/CubeSat Gumstix/Test/Camera

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The camera controller controller design reads images from the camera and sends them to the Gumstix.

Cubesat ADC test board connections.JPG


The OV7670 camera can be configures for different image sizes and frame rates.

Image size

In this design, the images are stored in the FPGA memory. The Spartan-6 LX100 FPGA has:

  • 122 KB distributed RAM
  • 603 KB Block RAM built out of 4.5 KB blocks

The following table provides the required memory for different image sizes for 1 byte per pixel:

resolution pixel number data volume
VGA 640 x 480 307.2 K
QVGA 320 x 240 76.8 K
CIF 352 x 288 101.4 K
QCIF 176 x 144 25.3 K

VGA resolution doesn't allow to have 2 images at a time, so CIF resolution is chosen.

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