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Driving an image sensor via FMC connector

Former Member

HI guys,

I have create my project on vivado version (2015.3), i have add a video frame buffer as shown in " How to create a design from scratch), and also i have add the HDMI pre-production to monitor my image.
I have done the file constraints of all my PIN assignement.
I configure my image sensor by SPI, so in SDK i have writen my project and also debug those signals by ILA.
Actually I have generate the bitstream of my project, and also create an image via FSBL in SDK.

In my laboratory we still waiting the image sensor to get it from the manufacturer.

So my question is : How can I test my project in order to validate if it's functionnal befor getting my image sensor ?.

PS : my image sensor is configured to work autonomously, I get from it the DATA of 4 pixels (48 bits) and Vsynq , HSynq.

is this suffisiant to make it work and have my image Via HDMI ?.

Thank you for your help.
Kind regars

  • 0

    Hello,

     

    One option is to perform a simluation of your design, including a simulation model for your image sensor.

    You will need the datasheet for your image sensor, to reproduce the interface signals in simulation.

     

    Another option is to create a custom IP core that emulates your image sensor until you have it available.

    This will allow you to validate the rest of your design on actual hardware.

     

    Good luck and have fun !

    Regards,

    Mario.

  • 0

    Thank you mario for helping me I will try it. But now i got a serious problem.

    Could you have a look on this:
    I'm lost with vivado versions, i have done the tutto of " diplay controler HDMI" on version 2014.1 i have got my color bars in my monitor via HDMI till now all it's good.
    But when i got copy this project to another machine version 2015.3, i have upgrade all ips after synthetising, implementation and bitstream.

    I have run my software in SDK as i have done in version 2014.1. But the prob i cannot see the color bars.
    My monitor does'nt recongnize the HDMI :(.

    My question is : does someone know the reason why i cannot see the same results ??
    Do I need to change something to make my porject 2015.3 works as 2014.1 ?.

    Thank your for your feedbacks.

    Kind regards

  • 0 in reply to Former Member

    Hello,

    The "AXI-Stream to Video Output" core was modified in 2015.x.

    They improved the core by allowing the user to decide if they want different clock domains for the AXI-Stream and Video output interfaces.

    By default, the core is updated to use a common clock for both interfaces.  This is most probably the issue you are experiencing.

    Make sure that the "Clock Mode" is set to "Independant", then connect the "vid_io_out_clk" port connected to the video output clock domain.

    Hope this helps !

    Regards,

    Mario.