“No Devices Found” when loading bitstream on KR260 using PYNQ

Support
1

Hi everyone,

I’m working on a custom project using the KR260 board and trying to run the LED Blink example from the following GitHub repo (originally intended for the KV260):

When I try to run the following code:
from pynq import Overlay
overlay = Overlay(‘led_on_block.bit’)

I get this error:
RuntimeError: No Devices Found

I’m aware that the example was written for the KV260, but I was hoping it would work similarly on the KR260, since both are part of the KRIA family.

Do I need to regenerate the bitstream from Vivado specifically for the KR260 board? Or is there a way to adapt the existing project to work?

Any advice or guidance would be greatly appreciated
Thanks in advance!

2

Hi @adi_zafran,

Welcome to the PYNQ community.

Where are you trying to run this code? How did you install PYNQ on the KR260?

Mario

3

Thanks for the reply!

I’m running the code directly on the KR260 board, using Jupyter Notebook that I access through the browser.
I installed PYNQ manually by cloning the GitHub repo and running the setup.py script (since there’s no official image for KR260 with PYNQ pre-installed).

I followed the steps from this blog post
https://community.element14.com/technologies/fpga-group/b/blog/posts/blinking-a-led-with-pynq-in-kria-kv260-kr260

4

Are you running the code inside a notebook or in a terminal? Can you share a screenshot?

5

I’m running the code inside a Jupyter notebook on the KR260 board itself.
I access Jupyter through the browser and run all the Python code cells there

error
error1152×771 146 KB

6

Did the PYNQ installation finish successfully?