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ADV7511 Zedboard no-OS ref design - set resolution to 800x480

Question asked by whazup on Jun 5, 2016
Latest reply on Jun 7, 2016 by DragosB

I managed to build the Vivado project & no-OS SDK application from the github repos of the ADV7511 Xilinx Evaluation Boards reference design, with Vivado 2015.2.1

 

After programming the bitstream, and running the no-OS application, I can see the Analog Devices / Xilinx image on my display, in both the 640x480 or 800x600 resolution setting. 'Out of the box' the no-OS project seems to support these resolutions :

 

enum videoResolution

{

  RESOLUTION_640x480,

  RESOLUTION_800x600,

  RESOLUTION_1024x768,

  RESOLUTION_1280x720,

  RESOLUTION_1360x768,

  RESOLUTION_1600x900,

  RESOLUTION_1920x1080

};

 

unfortunately my display has a 800x480 resolution.

 

My questions :

 

  1. I'd like to have some guidance on how to modify the no-OS code to support this 800x480 resolution.
  2. Do I need to modify some parameters in the Vivado project? I.e. in the 'axi_clkgen_v1_0' or the 'axi_hdmi_tx_v1_0'
  3. Can I find more documentation on these custom IP blocks, how to use them, how to calculate the parameter values?

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