As I explained before, I would like to embed the User Interface App into the PS side of Zynq.

The App, actually written in Python (Matplotlib + pyQTgraph), allows to see the spectrum, the waterfall and to tune radio stations.

For this reason the EBAZ4205 should have implemented with any kind of video out.

I examined a few options.

• VNC server / X11 forwarding
  • Not difficult to do in SW
  • No need to change hardware
  • It needs an external PC 
• VGA
  • It needs a simple resistive external ladder
  • a bit old fashioned
  • it's analogic
  • It needs an external VGA display or a VGA/HDMI external adapter
• HDMI with HW converter
  • It uses an external device (ADV7511 or similar) to convert the Zynq parallel output to the HDMI differential digital signals to handle the highest resolutions 
  • It's digital
  • you can use any HDMI display / TV

• HDMI without HW converter
  • It doesn't use any external device, the Zynq pins are directly connected to the HDMI port
  • For the HW implementation see Digilent ZYBO schematic at page 5 and Digilent ZYBO Reference at page 21
  • For a SW test see Digilent HDMI demo having also the HDMI input side that is useless to me or Video Series 23: Generate a video output on Pynq-Z2 HDMI out which outputs a test pattern to the HDMI out   
  • It's digital
  • you can use any HDMI display / TV