On Saturday, October 18, 2014 2:03:51 PM UTC-4, Michael Lefsky wrote:
>
> I would like to connect an Aptina MT9P031 to a beagleboard black.  This 
> would be straightforward for the BB-Xm, which has a leopard imaging camera 
> port, but I haven't seen any mention of a camera port for the other beagle 
> models or as a cape for those models. I don't need to necessarily use the 
> Leopardimaging port standard. Is their a cape that implements the camera 
> port?
>

If you mean a Beagle*Bone* Black (BBB), there are capes from Circuitco and 
Radiumboards that use an IC made by QuickLogic to transfer 8-bit parallel 
data from an Aptina camera to GPIO pins. I looked into modifying these to 
work with the Aptina MT9M001, which produces 10-bit data, thinking that 
perhaps thus could be done just by making a different sensor board for the 
cape. There do not, however, seem to be enough data lines available, and, 
since the MT9P031 produces 12-bit parallel data, it is even less likely 
that it could be made to work with the camera capes. 

Look up Chris Clark's award-winning Interacto cape design (hardware and 
software details on GitHub), in which he transfers parallel data from a 
Toshiba camera (basically the same interface used by Aptina) directly to 
the BBB processor through one of the 200 MHz PRU deterministic processors 
incorporated in the Sitara chip. CircuitCo has recently introduced a PRU 
cape, which is actually a demo board for some of the neater tricks one can 
do with the PRU and would probably not be needed to interface a camera to 
the BBB. The existence of the PRU cape does, however, suggest that the 
Beagle/CircuitCo/TI folks, who previously weren't supporting the PRU, have 
come to realize that it is a unique and useful subsystem.

-Howard Shapiro

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