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Deadlock of Microzed

Former Member

Hello

I work with Vivado 2014.2 and the AES-Z7MB-7Z020-SOM-I-G.

Iu2019m new to the Zynq world and worked through the ZynqSW and ZynqHW tutorials for the Zedboard (we already had Zedboards) as well as the CTT tutorial. Then I wanted to adapt the CTT tutorial to my target hardware, the Microzed (version with a Z7020).

Since it is a lot of new stuff that is discussed, it happened that I corrupted my Microzed somehow. I managed to crash my serial console, the zynq just doesnu2019t send any message (Tx of Zynq is always 1V8) even though Iu2019m able to download some (default) helloworld projects or connect to the zynq via XMD console.
However, I was able to debug the helloworld.c file andu2026 see there. I have the same deadlock as described here:

https://lists.rtems.org/pipermail/users/2015-May/028793.html


My Debug Disassembly exctract is this:
ffffff2c:   dsb     sy
ffffff30:   wfe
ffffff34:   mvn     r0, #15
ffffff38:   ldr     lr, [r0]
ffffff3c:   cmn     lr, #212
ffffff40:   beq     -28     ; addr=0xffffff2c

This exact same disassembly extract appears with any code I try to debug on the microzed now.

Can you tell me if there is a way to overcome this deadlock? Is there a way to download an fsbl and bring the PS up and running again?

I would be very happy for an answer or even a way to reset my system again.

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  • 0

    Have you tried reprogramming the QSPI with the image stored in Tutorial "Open Source Linux In System QSPI Programming Tutorial?"

     

    You could also try the solutions from Tutorial 04.

     

    Bryan

  • 0 in reply to bhfletcher

    Hi Bryan

    Thanks for the input. I tried to reprogram the QSPI with the suggested Tutorial "Open Source Linux In System QSPI Programming Tutorial" now. Unfortunately there is still no terminal output (not a single character).

    I also followed the Tutorial 04. I can successfully program the QSPI (it states "Flash Operation Successful" in the Program Flash Console) but I can still not receive any signal via the terminal.

    The terminal setup is working. I can double-check it (with same USB-cables, terminal settings, etc) a Zedboard and there I receive all the messages on the serial terminal.

    Can you provide a boot-file (BOOT.mcs) with a hello world program for a Microzed 7020 which I could program to the QSPI Flash?

    Nicolas

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  • 0 in reply to bhfletcher

    Hi Bryan

    Thanks for the input. I tried to reprogram the QSPI with the suggested Tutorial "Open Source Linux In System QSPI Programming Tutorial" now. Unfortunately there is still no terminal output (not a single character).

    I also followed the Tutorial 04. I can successfully program the QSPI (it states "Flash Operation Successful" in the Program Flash Console) but I can still not receive any signal via the terminal.

    The terminal setup is working. I can double-check it (with same USB-cables, terminal settings, etc) a Zedboard and there I receive all the messages on the serial terminal.

    Can you provide a boot-file (BOOT.mcs) with a hello world program for a Microzed 7020 which I could program to the QSPI Flash?

    Nicolas

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