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IWR1443: CSI2 interface with TDA3x

Ravikiran HV
Mastermind 8715 points
Part Number: IWR1443
Other Parts Discussed in Thread: AWR1243

Hello experts,

Recently, I started looking into IWR1443 and want to interface with another processor with MIPI-CSI2 interface. 

While browsing through  many posts on this forum, one common thing I have noticed is, TI recommends using converter such as FPD link for interfacing IWR & TDA3x via CSI2.  Since TDA3x & IWR1443/AWR1243 are CSI2 compliant devices, we should be able to interface them directly without any additional components/converters/IC's in between.

Is there any specific reason/known issues in interfacing it directly ?

Here I found few recommendations from TI:

Appreciate your help. 

Thanks 

  • 0
    TI__Mastermind 25835 points
    Hello,

    IWR1443/AWR1243 and TDA3X are compatible in terms of MIPI CSI2 interfaces. These two devices could be connected without needing additional devices. Currently this specific hardware not available from TI.
    However our partners/customers have built a solution between these two SOCs depending upon various applications.

    You could get in touch with our partners from the below link.
    www.ti.com/.../tools-software.html
  • 0 in reply to CHETHAN KUMAR Y.B.
    Mastermind 8715 points

    Thanks for the info Chetan.

    From your comments, I understand that IWR1443/AWR1243 can be considered as CSI camera module.
    i.e. it can be interfaced with any host image processor just like any other camera CSI2 camera modules (likes of IMX1274, OV5x, etc). 

    Please correct me if I am wrong.

    Point of confusion is procesor SDK documents because, it suggests to use DIB+VAB between AWR & TDA. 
    Not sure, why TI didnt recommend connecting them directy. 


    Thanks

  • 0 in reply to Ravikiran HV
    TI__Mastermind 25835 points
    Hello,

    Yes, one item you may need to note is that primary control interface to Radar sensor is SPI interface, unlike most of the camera sensors will have I2C interface.

    During early development, mmWave sensor and TDA processors have been developed separately, and one of the way to interconnect between the two family is to use additional adapter boards.

    Thanks and regards,
    CHETHAN KUMAR Y.B.
  • 0 in reply to CHETHAN KUMAR Y.B.
    Mastermind 8715 points
    Chetan,

    That was useful. We will look into TI IWR1443 stack to see how we can get CSI2 compliant data out on CSI lanes.

    Meanwhile, I got information from my colleague that though "command mode" is mentioned in TRM , TI internally implemented "video mode" signals on CBUF/CSI2.

    With this, I would assume it is just a documentation problem and move ahead with exploring it further in detail.

    Thanks