HDMI on PYNQ-Z1

[Avery]

HI,

We are using "HDMI IN" on the PYNQ-Z1 board to test our HDMI interface. Have two questions.

1. Is there a way to directly toggle HPD signal on the "HDMI IN" port?

2. Is there a program or method for reading CEC signal?

Thanks,

Avery

[jpeyron]

Hi @Avery,

I do not have a lot of experience with the HDMI projects I have reached out to the creator of the "HDMI IN" for the Arty-Z7-20. This is the project you are talking about correct? 

cheers,

Jon

[Avery]

No, it's for the PYNQ-Z1 board. I was directed to this forum by the Digilent Sales team.

http://www.pynq.io/board.html

[jpeyron]

Hi @Avery,

Sorry about the confusion, some of the Arty-Z7-20 projects could work for the PYNQ-Z1. I was looking through the examples on the website for the PYNQ-Z1 and I didn't see a "HDMI-IN". If you are using a project for the PYNQ-Z1 from here then I would suggest to use the forums provided for the PYNQ-Z1 here. Again sorry for the confusion.

cheers,

Jon 

[sbobrowicz]

@Avery Here are the answers to your questions:

1) Yes, pin T19 attached to the PL of the Zynq can be used to control the HPD signal. See the HDMI section of the PYNQ-Z1 reference manual for some more info: https://reference.digilentinc.com/reference/programmable-logic/pynq-z1/reference-manual#hdmi

2) Sorry, we don't have any CEC demos.