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no hdmi out - [Smarter Vision Design Seminar]

Former Member

Hello, I am interested in experimenting with "Smarter Vision Design Seminar" uploaded project files (http://zedboard.org/course/smarter-vision-design-seminar). Working on zedboard, i haven't connected any "HDMI Input/Output FMC Module", as TPG is enough as a signal source for my tests, so fmc connector is floating.

What i get when loading sd card with "sd_image" files found under lab1, while monitoring serial port, is the menu indicated in the tutorial (so video_library_cmd is executed), but there is no signal coming to my monitor which is connected to zedboard's hdmi port, independently on my menu selection, with no error message indicating some erroneous state.

I wonder if the lack of the module causes any concflict when attempting to run application.

Please consult.

Regards

  • 0

    Following up,

    Powering up system, monitor EDID is displayed on my serial port.
    I am giving that as an additional info just in case
    there is any incompatibility issue between system built and tested monitor. 
    It is tested in 2 different monitors:

    monitor 1:
    ========================================
    Display Information (EDID)
    ========================================
    EDID Version 1.3
    Manufacturer: SAM
    Model: 76d
    Serial Number: 1110590277
    Year: 2011 Week 10
    Display Characteristics:
       Monitor Operating Limits from EDID
       H: 30-81KHz V: 56-75Hz DCLK: 170MHz
       Digital Display Input
       Max H-size 48cm
       Max V-size 27cm
       Display Gamma 2.20
       DPMS: Active yes, Suspend no, Standby no
       RGB Color Display
       Chromaticity coordinates:
          RedX:   0.649
          RedY:   0.335
          GreenX: 0.283
          GreenY: 0.605
          BlueX:  0.151
          BlueY:  0.073
          WhiteX: 0.313
          WhiteY: 0.329
       First DETAILED Timing is preferred
    Monitor Timings
       Resolution 1920x1080
       Pixel Clock 148 MHz
       H sync:
          Front porch 88 Length 44 Back porch 148
       V sync:
          Front porch 4 Length 5 Back porch 36
       +HSync +VSync
    ========================================
    xylonfb video mode: 1920x1080-16@60


    monitor 2:
    ========================================
    Display Information (EDID)
    ========================================
    EDID Version 1.3
    Manufacturer: GSM
    Model: 58da
    Serial Number: 16843009
    Year: 2011 Week 1
    Display Characteristics:
       Monitor Operating Limits from EDID
       H: 30-83KHz V: 56-61Hz DCLK: 150MHz
       Digital Display Input
       Max H-size 51cm
       Max V-size 29cm
       Display Gamma 2.20
       DPMS: Active yes, Suspend yes, Standby yes
       RGB Color Display
       Chromaticity coordinates:
          RedX:   0.628
          RedY:   0.348
          GreenX: 0.345
          GreenY: 0.615
          BlueX:  0.153
          BlueY:  0.057
          WhiteX: 0.313
          WhiteY: 0.329
       First DETAILED Timing is preferred
    Monitor Timings
       Resolution 1920x1080
       Pixel Clock 148 MHz
       H sync:
          Front porch 88 Length 44 Back porch 148
       V sync:
          Front porch 4 Length 5 Back porch 36
       +HSync +VSync
    ========================================
    xylonfb video mode: 1920x1080-16@60

  • 0

    Hello,

    When the linux image boots, you should see the command console on the monitor for a short period.

    When the "video_library_cmd" application executes, the monitor will display a black screen.

    If you don't have the FMC module, the TPG and "Live Video" options will not work.

    The "Decoded Video File" will work.

     

    If the monitor was not recognized before the application started executing, it will not display anything on the monitor.

    When this happens, the workaround is to exit the application, then re-launch it.

    1) exit the application by pressing the '0', then 'ENTER' keys

    2) login to linux using user 'root', with password 'root'

    3) re-launch application with the following commands

          cd /mnt/card

          ./video_library_cmd

    I hope this helps !

    Regards,

    Mario.

  • 0

    Hi Mario,

    Thanks a lot for your response.
    It seems that there is a conflict with files (BOOT.bin, image.ub) found under lab1, which gave me erroneous state already described.
    Updating SD card content with files found under ZynqVision2013_3solutionslab4sd_image (BOOT.bin, image.ub),
    hopefully problem solved and have now a working system like the one you said.

    However Frames per second metric returns 2 frames per second, using decoded file with no filter.
    Do you believe is a hardware issue (slow sd card maybe) or system configuration that gives such delay?

    Cheers
    Chris

  • 0

    Furthermore,
    Could you please share some guidelines on how i can generate updated BOOT.bin & image.ub files,
    based on an update of that certain vivado design, where lets say only the part of
    hls opencv accelerator has been altered [tools used: Vivado 2013.3].

    Thanks
    Chris

  • 0

    Hello,

    New BOOT.bin has been generated using "sdk -> xilinx tools".
    However i still get 2 frames per second operating "decoded file with no filter".
    Is that an expected performance from that certain design
    or there are any tweaks that can accelerate process?

    Cheers thanks