Hi Wei,
   Is there any chance this workaround is related to needing cpu.idle=1 on your 
kernel command line? I know trying to use the system ilas will cause the PS 
side to hang without it. 

-Jeb

Sent from my mobile.

> On Nov 2, 2020, at 15:57, Wei Liu <[email protected]> wrote:
> 
> 
> Hi Casperites,
> 
> I'm working on porting casper toolflow on ZCU111.
> I want to share some debugging experiences, which may be helpful.
> 
> We have PYNQ image running on the PS part, which is based on Ubuntu18.04.
> 
> I found PL registers can't be accessed after the bit file is downloaded via 
> JTAG.
> Because PYNQ image is running, SDK can't be used for debugging and no elf 
> file is associated,
> which causes some initialization unfinished.
> 
> What I did is download the bit file via JTAG first, so we have the GUI for 
> debugging.
> Then I downloaded the same bit file via Overlay class from PYNQ, which can 
> finish the necessary initialization.
> After that, I can monitor signals from the vivado hardware manager, and I can 
> also read or write PL registers.
> 
> Hope this will be helpful for debugging on MPSOC with PYNQ image.
> 
> Best,
> Wei
> -- 
> You received this message because you are subscribed to the Google Groups 
> "[email protected]" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
> email to [email protected].
> To view this discussion on the web visit 
> https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAFRG3zSgUTvd-dQvvaD-x3i2kERqjuf8-P-TBEj0%2B1tKQcFJtA%40mail.gmail.com.

-- 
You received this message because you are subscribed to the Google Groups 
"[email protected]" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To view this discussion on the web visit 
https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/E1B2A77B-57C1-4F59-AD57-2691FB351869%40ucsb.edu.

Reply via email to