What you mean by PL registers? All the PL IO I’ve done has, at one level of abstraction or another, been either using pynq.mmio (most often either with direct address offsets, the .array[] attribute of the instance, or the auto-generated .register_map attribute. I’ve also loaded in date using an AXI master in PL that I configured the address via an AXI-Lite register. You can also use the pynq.gpio to control the wires into the PL if you enable them.
-Jeb —— Dr. J.I. Bailey, III (Jeb) / Project Scientist Mazin Lab <http://web.physics.ucsb.edu/~bmazin/> / Department of Physics, UCSB jebbailey.com / +1 (734) 389-5143 / skype:spacecolonyone > On Nov 2, 2020, at 7:04 PM, Wei Liu <[email protected]> wrote: > > Hi Jeb, > > At the beginning of the test, I had the cpu hanging issue. > I followed the instructions here, and fixed the issue: > https://discuss.pynq.io/t/problem-with-using-integrated-logic-analyzer-ila-for-debugging-with-pynq/435/4 > > <https://discuss.pynq.io/t/problem-with-using-integrated-logic-analyzer-ila-for-debugging-with-pynq/435/4> > > Then I downloaded the bit file via JTAG, the PS part didn't hang until I was > trying to read/write PL registers, > so I think it's not caused by cpu_idle. > > Did you try to read/write PL registers after you download the bit file via > JTAG? > If so, can you please tell me how you did it? > > Thanks! > Best, > Wei > > > > On Mon, Nov 2, 2020 at 6:14 PM Jeb Bailey <[email protected] > <mailto:[email protected]>> wrote: > 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] >> <mailto:[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] <mailto:[email protected]>" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] >> <mailto:[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 >> >> <https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAFRG3zSgUTvd-dQvvaD-x3i2kERqjuf8-P-TBEj0%2B1tKQcFJtA%40mail.gmail.com?utm_medium=email&utm_source=footer>. > > > -- > You received this message because you are subscribed to the Google Groups > "[email protected] <mailto:[email protected]>" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[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 > > <https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/E1B2A77B-57C1-4F59-AD57-2691FB351869%40ucsb.edu?utm_medium=email&utm_source=footer>. > > -- > 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] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAFRG3zSqRTLUtABjM%3De94yzPCJJuFCvE8zT9Js2r0sq4%3D9VfPw%40mail.gmail.com > > <https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAFRG3zSqRTLUtABjM%3De94yzPCJJuFCvE8zT9Js2r0sq4%3D9VfPw%40mail.gmail.com?utm_medium=email&utm_source=footer>. -- 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/A2F40862-0261-40F3-8093-32035F5D044A%40ucsb.edu.
