Program Overlay at boot time

Support
1

hello，In PYNQ version 3.0.1, after I commented out this section and ran make, an error occurred.

user@user-VirtualBox:~/xilinx/PYNQ/sdbuild$ make BOARDS=zynq-7020
Makefile:371: *** recipe commences before first target.  Stop.

It seems that this post was published quite a long time ago, so I’m not sure if this method still works.

I need to make the HDMI display show the desktop image, and the driver depends on the VTC/VDMA IPs in the PL.
Therefore, the bitstream must be loaded and the device tree updated during the boot process; otherwise, the DRM/Framebuffer driver won’t be able to find the hardware nodes.
Could you please tell me how to implement bitstream loading at boot in the current version?

2

Hi @bonkbonk,

I created a new topic to track this.
You can use the boot.py to do this. PYNQ SD Card image — Python productivity for Zynq (Pynq)

This is the way the baseoverlay is loaded.

Mario

3

This topic was automatically closed 3 days after the last reply. New replies are no longer allowed.