Blackfin EZ-Extender Manual
1-3
EZ-Extender Interfaces
clock settings, refer to
“Clock Routing Switch (SW2)” on page 2-5
. It is
also necessary to determine the direction and source of the data and frame
synchronization signals. If your processor holds more than one PPI, the
DAC interface allows you to communicate with either
PPI0
or
PPI1
of the
processor. The direction of the frame sync signals is dependent on the tar-
get; thus, the functionality of the interface must be taken into
consideration. For more information, refer to
“DIP Switches and Jumpers” on page 2-4
Example programs can be found in the software installation directory. To
learn more about Analog Devices data converters, go to
Camera Interface
The Blackfin EZ-Extender camera interface is a right-angle 32-pin con-
nector with control signals compatible to the ITU-R BT.656 camera
interface specification. Specifically, the extender’s camera interface is
directly compatible with camera interface boards, such as the Omnivision
OV6630AA evaluation module (this part is no longer available). To learn
more about the OV6630AA evaluation module, go to
. For a block diagram of the camera interface, see
Before using the Blackfin EZ-Extender, familiarize yourself with the docu-
mentation and schematics of the target board and the EZ-KIT Lite. For
example, on the EZ-KIT Lite, it may be necessary to disable other devices
on the PPI, route the PPI clocks, and disable the push buttons.
To configure the Blackfin EZ-Extender to connect to a camera, first deter-
mine the source of the PPI clock. To learn about possible clock settings,
refer to
“Clock Routing Switch (SW2)” on page 2-5
. It is also necessary to
set the direction of the data and the frame sync signals. The direction of
frame synchronization signals depends on the camera’s configuration.
