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TDA2EG-17: TDA2EG-17

gg yang
Intellectual 995 points
Part Number: TDA2EG-17
Other Parts Discussed in Thread: SYSBIOS

Hi，

 SDK： ti-processor-sdk-linux-automotive-dra7xx-evm-03_04_00_03

    4 camera--->ds90ub964---mipi csi--->tda2e-17.

   Do the four cameras have to be synchronized? Can the camera be without external synchronization?

   How to do it under ti-processor-sdk-linux-automotive-dra7xx-evm-03_04_00_03 does not need four cameras to synchronize.

  • 0
    TI__Guru**** 398160 points

    Hi,

    That's perfectly fine, the four cameras do not have to be in sync. CAL module in TDA2Ex will capture it at different time..

    Rgds,

    Brijesh 

  • 0 in reply to Brijesh Jadav
    Intellectual 995 points

    HI，

    I know four cameras don't need to be sync in PROCESSOR_SDK_VISION_03_05_00_00.

    What I want to confirm is ti-processor-sdk-linux-automotive-dra7xx-evm-03_ 04_ 00_ 03 four cameras don't have to be synchronized？

    For example, four cameras in ti-processor-sdk-linux-automotive-dra7xx-evm-03_ 04_ 00_ 03 the device node generated by Linux driver is / dev / video0. How can I get the data of each camera? If the four cameras are synchronized, it is equivalent to one camera through Mipi. The data obtained through / dev / video0 is cut into four graphs.

    If it's not synchronized, how can I get the data from each camera？

  • 0 in reply to gg yang
    TI__Guru**** 398160 points

    Hi,

    I am sorry, i thought you are using sysbios CAL driver. CAL driver on sysbios does support multiple asynchronous capture input. You could find multiple multi-channel capture example in vision apps. So no limitation from module point of view.

    I am not sure about Linux, does it expose multiple /dev entries, one for each capture input? Could you please check capture driver documentation on Linux?

    Regards,

    Brijesh  

  • 0 in reply to Brijesh Jadav
    Intellectual 995 points

    Hi, Brijesh

       Thank you very much. Brijesh.

       Four ahd (720p bt656) cameras --- > [N4 IC] --- Mipi CSI --- > tda2e-17,

       Because ds90ub964 does not support ahd camera, N4 is used instead of 964

       Whether to support other IC of  non Ti demultiplexer （N4 or maxim ic） in PROCESSOR_SDK_VISION_03_05_00_00 ？

       Whether to support   IC that support four camera inputs and Mipi output  in PROCESSOR_SDK_VISION_03_05_00_00 ？

  • 0 in reply to gg yang
    TI__Guru**** 398160 points

    Hi,

    I am not sure about Maxim or N4 IC.  They are not supported in vision sdk.

    But UB964/UB960 is supported in vision sdk for 720p capture. There are multiple usecases which uses Ub964/ub960. 

    I think even for TDA2Ex, there are one or two usecases using ub960. Please check the userguide in vision_sdk/docs folder to see which usecase uses this deserializer. 

    Regards,

    Brijesh