How to store photos on Zedboard

Question

Hello

i'm only a begginer and i'm trying to figure out how to store 4 photos on Zedboard and then display it on the monitor via VGA using Matlab 2015 and vivado. I'm in over my head and need some guidance on how to get out.

zedhed · Accepted Answer

Hi Padma,

To my knowledge, no one has ever done this before.

That being said, most of the pieces already exist for what you want to do but there would be a lot of work to put it all together.

I would recommend starting with getting the VGA portion working first. Here is a post where that topic came up:

http://microzed.org/content/displaying-image-using-vga-zedboard

If you can use HDMI, I think that simplifies the task a bit because there are more examples of how to use the HDMI than there are of how to use the VGA.

For either approach, you will are going to need some way to store the photo RGB data into DDR memory since the programmable logic (PL) available on the ZedBoard Zynq 7Z020 device does not have enough BRAM to store an entire 1920x1080 24-bit color image in memory. Usually this is done through the use of a Frame Buffer where the PL can pull photo data from and stream it out to the ADV7511 HDMI output device.

If you decide to go the HDMI route, I recommend looking into the reference design from the folks at ADI:

https://wiki.analog.com/resources/fpga/xilinx/kc705/adv7511

There is a demo program which will display an image and play a sound. That demo program could then be modified to display your 4 photos.

Regards,

-Kevin