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Multiple CMOS Camera on OMAP3530 Processor

Niloc2004
Intellectual 440 points

Other Parts Discussed in Thread: OMAP3530, AM3505

 Hello,

    I am looking into developing a device that uses the OMAP3530.  The device needs to be able to access the datasteam of two CMOS cameras.  However, It does not need to access both cameras at once.  (As long as it can get an overall 10 hz capture rate from each I will be happy)  I have read through the OMAP3530 datasheet and it mentions that it can access two different pixel streams but I am confused how it works.  There only appears to be enough pins to interface with one camera.  Here is the portion of the datasheet that I am referencing, 

"The camera subsystem provides the system interfaces and the processing capability to connect raw, YUV, or JPEG image sensor modules to the OMAP3530/25 device for video-preview, video-record, an still-image-capture applications. The camera subsystem supports up to two simultaneous pixel flows but only one of them can use the video processing hardware:"

Can someone please explain where I should look for more information?  Do I need to mux the singlas coming out of the SOC somehow.  Thanks and please ignore my ignorance on this topic, I have no experience working with camera subsystems. 

-

Colin

  • 0
    TI__Intellectual 1280 points

    The current OMAP3530 Data Manual should be updated to not reflect support for two cameras (simultaneous data flows) since parallel interface in only 12 bits wide and serial camera interface (CSI2) is not supported on OMAP35xx devices as depicted in  Table 1-3 of Section 1.5 of SPRUF98F.  In order to support two simultaneous data flows you would need a dual camera interace.  You may want to look at AM3505/17 if ISP specific features of OMAP35x are not important since you could possibly connect two external 8-bit YCbCr capture devices and utilzie swap bit to determine which part of bus is effectively used for 8-bit input since you do not need to use both cameras simultaneously.