I need to connect RPi and PYNQ Z2. I want to send information (image frame) from RPi to PYNQ Z2. I tried connecting through HDMI Out and In respective boards. But no result? Is there any demo regarding this?
Do you mean you want to transfer a video stream via HDMI?
Set the HDMI out on the RPi, then use the HDMI introduction notebook:
https://github.com/Xilinx/PYNQ/blob/master/boards/Pynq-Z1/base/notebooks/video/hdmi_introduction.ipynb
Cathal