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DM365/368's ISIF(VPFE) can get 720/60p BT.1120?

Damien
Prodigy 150 points

Hi there,

 

DM365/368's ISIF(VPFE) can get 720/60p BT.1120?

 

I need the output frame rate 30 fps, but my CCD sensor may output only 60fps.

 

Best regards,

  • 0
    TI__Intellectual 1870 points

    I got information that BT.1120 720P30fps was used for initial internal demo long time back.

    As, the device can support up to 120MHz, I don't see any reason there is an issue (unless 60fps has special format which I don't believe).

    Please let me know if you have any concern in detail.

     

    Regards,

    Sang-Yong

  • 0 in reply to SANG-YONG
    Prodigy 150 points

    On AVServer_DesignGuide_IPNC_DM365_IMX035.pdf page 26 of 41,

    on "sensorFps" line, stated "The sensor fps. Sensor frame timing is adjusted 

    based on this value. Valid values from 5 to 30. ".

     

    So I wonder that 60 fps is OK.

    720/60p's pixel clock is 74.25MHz.

     

    Regards,

  • 0 in reply to Damien
    TI__Mastermind 19985 points

    Hi,

    Yes, you should be able to scale the capture to 60fps. BTW, in our system if we set sensorfps = 60, then whole of the system by default would run at 60fps. You would have to define the frameSkipMask in avServerUi.c to drop alternate frames and use only 30fps.

     

    Regards,

    Anshuman

    PS: Please mark this post as verified, if you think it has answered your question. Thanks.

     

  • 0 in reply to Damien
    TI__Intellectual 1870 points

    Now, I understand your point (IMX035 Sony sensor).

    The sensor uses LVDS interface for 720P60fps (CMOS parallel can be used for 720P30fps) and DM36x doesn't support LVDS parallel interface.

    Therefore you cannot use it.

    It is not the matter of speed but the electical format fo sensor output.

     

    regards,

    Sang-Yong

  • 0 in reply to Anshuman Saxena
    Prodigy 150 points

    Hi Anshuman,

    On "frameSkipMask", stated "Only    valid    when    captureRawInMode    = AVSERVER_CAPTURE_RAW_IN_MODE_DDR_IN".

    But my input video format is YUV(not RAW).

    So DM365 cannot skip some frames, it's OK?

    Regards,

    Damien

  • 0 in reply to SANG-YONG
    Prodigy 150 points

    Hi Sang-Yong,

     

    I don't use the sensor board of IPNC DM365-IMX035.

    I replaced the sensor IMX035 board by CCD sensor unit.

    This CCD sensor unit is BT.1120 720/60p.

     

    Regards,

    Damien

  • 0 in reply to Damien
    TI__Mastermind 19985 points

    Hi,

    Damien said:

    On "frameSkipMask", stated "Only    valid    when    captureRawInMode    = AVSERVER_CAPTURE_RAW_IN_MODE_DDR_IN".

    But my input video format is YUV(not RAW).

     Current implementation of IPNC Ref Design is not having support for YUV input mode capture, so you could see that the capture mode definition has RAW_IN_MODE_DDR_IN. Actually, in this definition, RAW input is not the important thing. DDR_IN is the more important thing. The same definition can work for YUN IN mode with DDR input mode. Only thing is it need some changes in the driver. We are going to release IPNC Ref Design ver 2.5 (based on Aptina MT5 sensor) that would support YUV input mode also and can support all such requirements. If you need a patch to get it working, i can provide it to you, but it will take you some time to change it in your system.

    Regards,

    Anshuman

  • 0 in reply to Anshuman Saxena
    Prodigy 150 points

    Anshuman Saxena said:

    If you need a patch to get it working, i can provide it to you, but it will take you some time to change it in your system.

     

    Thank you Anshuman.

    Please provide its patch to me.

     

    Regards,

    Damien

  • 0 in reply to Damien
    TI__Mastermind 19985 points

    Attached the patch based on IPNC Ref Design (Aptina MT5 sensor) ver 1.5

    Regards,

    Anshuman

    YUV_input_mode.patch
  • 0 in reply to Anshuman Saxena
    Prodigy 150 points

    Thank you.

    I will use this patch as reference for my custom system.

  • 0 in reply to Anshuman Saxena
    Intellectual 485 points

    Hi Anshuman,

    I saw the patch in  which changes are made for BT 656. Will it work for BT 1020 with out making any changes?

    How long wil it take to release appro ipnc version  2.5?.  We are in need of it for our yuv sensors.

     

    Regards,

    Mahendra kumar

     

     

     

     

     

     

  • 0 in reply to Anshuman Saxena
    Intellectual 260 points
    Hi, i have similar problem,
    [analog yuv16 data, 720p 60fps] -> [adv7181C, 720p 60fps] -> [dm365, 720p 30fps]

    adv7181c cant be set 720p 30fps, so i set it with ##CP 720p##
    :720p/60Hz YPrPb In 20Bit 422 HS/VS Encoder:

    can i use dm365's frameSkipMask?

    Thanks in advance!