Error in reading bitstream file and hwh file in qpsk overlay

[Qw1chen]

Error in reading bitstream file and hwh file in qpsk overlay

[axdy]

I just tried commenting out the init_clocks() function in the QpskOverlay() and it seems if the clocks don't get initialised properly the board crashes. So maybe keep this in mind.

[axdy]

Hi there,
Did you receive any error messages when you attempted to load the QpskOverlay?
Andrew

[Qw1chen]

No,I did not get any error message when I import qpskoverlay, so I guess I import the function successfully. Andrew Maclellan ***@***.***>於 2024年5月24日 週五，21:19寫道：

…

Hi there, Did you receive any error messages when you attempted to load the QpskOverlay? Andrew — Reply to this email directly, view it on GitHub <#46 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/A4VLLDIDUDBFFIKVDEO6P63ZD446LAVCNFSM6AAAAABIGZCYZGVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDCMRZGUZDEMJSGY> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[axdy]

Okay, a couple more questions:

• Which ZCU216 PYNQ image are you using. This isn't an officially supported board by PYNQ so you would either need to make this yourself or use one someone else has made?
• Have you setup the clocking module CLK104 for the board correctly and attempted to interface with the bitstream with the default overlay driver from pynq.overlay import Overlay?

This will let you know if its solely this repository or other factors making the board crash.

[Qw1chen]

I use the prebuilt image posted here (https://discuss.pynq.io/t/the-rfsoc-book-and-design-examples-for-the-zcu208-zcu216-development-boards/5613) and it is built by Sara Susan. The version is Pynq v2.7.

I use from rfsoc_qpsk.qpsk_overlay import QpskOverlay to interface with the bitstream, and the setup of the zcu216 is picture below:

thanks!

[axdy]

Excellent, that image should be fine. Unfortunately, the link you sent is a dead, but you could try the following in the meantime while you reupload the picture:

from pynq.overlay import Overlay
ol = Overlay('bitstream_name.bit')
ol?

This is using PYNQ's default overlay class that is used by the QPSKOverlay class. Can you see the list of IP's produced by ol?.

[Qw1chen]

The setup picture:

and using the Overlay, I can see the list if IP:

thanks!

[axdy]

Everything seems to be setup correctly for the CLK104 board and the overlay sees the IPs in the bitstream which is good.
To rule out the bitstream location being an error could you:

ol = QpskOverlay(bitfile_name='bitstreamname.bit')

in the original notebook. Otherwise, I'll have to give this a try on my end and may take longer to get back to you.

[axdy]

So i just tried loading the overlay on the ZCU216 using the Release v1.4.5 and it loads the bitstream on my end. If you want to try installing the repo through the Release via the README.md instructions and confirm if it works for you.
Shortened instructions: (please run them in the terminal in the Jupyter instance running on the ZCU216.)

pip3 install https://github.com/strath-sdr/rfsoc_qpsk/releases/download/v1.4.5/rfsoc_qpsk.tar.gz
python -m rfsoc_qpsk install

[Qw1chen]

Yes!, I find out I ran the code 'ol = QpskOverlay(init_rf_clks=False)' and it caused the board shut down, and after I use the 'ol=QpskOverlay()', it can work!

Thank you very much!