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Original question:

RTOS/TDA3: CSI2 interface with TDA3x

RTOS/TDA3XEVM: IssCapture with TDA3x

Tn Zaku02
Intellectual 880 points

Part Number: TDA3XEVM

Tool/software: TI-RTOS

Hi Expert,

I'm running TI-RTOS Vision SDK v03.04 on TDA3x.
Reference usecase: "iss_capture_isp_simcop_display"

custom board frameworks is: AHD 720p30 Single camera → Decode with MIPI CSI2(YCbCr) → tda3x → SDTV

The stream is recognized by CAL module.
At address 0x52012350 the number increments.
At 0x52012304 expect to see a value of 0x6a054321.

But I don't see the video.
And print performance statistics the IssCapture link statistics, input/output statistics is null.


Could you please give some suggestion here?

Thanks in advance.

  • 0
    TI__Guru**** 502625 points

    Hi,

    Could you please check if the lane position and polarity is set up correctly in the CAL?

    This could be one reason why it is not capturing..

    Also please check the CSI data type and virtual channel is configured correctly.

    Rgds,

    Brijesh

  • 0 in reply to Brijesh Jadav
    Intellectual 880 points

    Hi,

    Previous run "csi2_cal_multi_cam_view" with the same frameworks were successful.
    So, I sure the lane position and polarity is set up correctly in the CAL.

    Try to mimic the configuration of "csi2_cal_multi_cam_view", but it is not correct.

    Following modifications:
        Int32 chains_issIspSimcop_Display_Create(
            chains_issIspSimcop_Display_ResetLinkPrms(
                IssCaptureLink_CreateParams_Init(
            chains_issIspSimcop_Display_SetAppPrms(
                appInitIssCaptParams(

    Where is the CSI data type and virtual channel configured?

    Thanks in advance.

  • 0 in reply to Tn Zaku02
    TI__Guru**** 502625 points

    Hi,

    In csi2_cal_multi_cam usecase, all CAL/CSI2 configuration is part of the usecase. Whereas Single chanel ISS usecase uses sensor frame and platform files to get the CAL configuration. 

    Probably, you could copy setCaptureParams API from your prev usecase to iss single channel usecase and then call it after chains_issIspSimcop_Display_SetIssRszPrms API call. 

    Rgds,

    Brijesh