• 0
Kris Persyn

Request to test this hdmi_out code (ZYBO z7-20)

Question

Posted (edited)

Hi there,

I designed a small module that's supposed to feed timing signals into the rgb2dvi block provided by digilent. The code I wrote which produces this can be found here. The connections required in the block design can be seen below in the picture. The I/O planning is shown as well. I'm not getting any HDMI out of it. I checked the testbench and it produced the correct sequence of outputs. (When the VDE signal is high the screen uses the color rgb_in) Can anyone test this on his board or notice any flaws?

If you run this on a zybo z7-20:
To create the required clock signal use clock wizard (input 125 MHz clock on pin k17 and produce 148.5 MHz to the timing module)

dvi.thumb.PNG.cab400935917c99c98ca34324a243c38.PNG

IO.PNG.2c97c8f2a6aee385cfa3b200dfc53e99.PNG

rgb2dvi.PNG.84e92a30232702a6a68d4689e2781799.PNG

manual.PNG.8e7ebed3f6471aa8777ae52af6599613.PNG

Thanks a lot in advance.

 

Edited by Kris Persyn

Share this post


Link to post
Share on other sites

4 answers to this question

Recommended Posts

  • 0
Posted (edited)

In the meantime I've found some errors in my timing module code. I will update as soon as I've rectified them.

Edited by Kris Persyn

Share this post


Link to post
Share on other sites
  • 0
Posted (edited)

Timing sequence should be fine now (feel free to test out with this testbench).

I've taken a look at the synthesized design and found something odd. For some reason these output signals are tied to ground (as if they weren't used..). There are other warnings as well which I found rather bizar.

synth_design.thumb.PNG.0e491504cc08437455f91ef5a73e7bbf.PNG

warnings.PNG.2f9300cef83a7341a6b2a7b24f71a85a.PNG

Edited by Kris Persyn

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now