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alexarsenault92
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Registered: ‎05-29-2019

BIST test shows no LEDs ZCU102

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Hello I have inherited a ZCU102 eval board and the BIST does not appear to be passing.  I followed all the steps from the quickstart guide to run the BIST but none of the LEDS next to SW13 are turning on.  All of the power LEDs are good.  I would be more confident of the exact point of failure if at least 1 of the LEDs was lit up but considering there are none are I'm skeptical of what might actually be the true cause of this.

Is it possible that the QSPI which contains the BIST has been overwritten somehow?  Is there any other reason that none of the LEDs next to SW13 would light up?

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andresb
Xilinx Employee
Xilinx Employee
1,085 Views
Registered: ‎06-21-2018

Hi Michael,

By the SN, I believe it could be related to this Design Advisory:
https://www.xilinx.com/support/answers/71968.html

Have you ever gone to the process outlined in AR 66811?:
https://www.xilinx.com/support/answers/66811.html

Thanks,
Andres

 

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timothyv
Xilinx Employee
Xilinx Employee
1,432 Views
Registered: ‎07-11-2019

Hello @alexarsenault92 

One of the first things I check for is the loaction of all of the jumpers. Make sure the jumpers are all in the default configuration. I have attached a link to UG1182, ZCU102 Evaluation Board User Guide, which contains a section on default jumper positions (Ch2: Board Setup and Configuration). I have also attached UG1085, Zynq UltraScale+ Device Technical Reference Manual, which contains explanations on the BIST process. I think it might be useful to read through it. 

Also, try pressing SW4, which restarts the BIST process again. This will cause the "DONE" LED to go out, the FPGA to configre again, and the BIST to restart. 

Lastly, I would try power cycling the board to see if this will fix the problem. It may take a couple of power cycles, so try it multiple times if the first time does not work. 

Attachments

UG1182: https://www.xilinx.com/support/documentation/boards_and_kits/zcu102/ug1182-zcu102-eval-bd.pdf

UG1085: https://www.xilinx.com/support/documentation/user_guides/ug1085-zynq-ultrascale-trm.pdf

Please let me know if any of these methods or resources help fix the problem!

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andresb
Xilinx Employee
Xilinx Employee
1,402 Views
Registered: ‎06-21-2018

Hi alexarsenault,

It's possible that the QSPI image has been overwritten by the previous owner.

Have you tried restoring it to factory settings?:

https://www.xilinx.com/support/documentation/boards_and_kits/zcu102/2018_3/xtp434-zcu102-restoring-flash-c-2018-3.pdf

Thanks,
Andres

 

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1,191 Views
Registered: ‎02-05-2020

Hi together,

I've the same issue with a ZCU102 board (revision 1.1):

1) The flash is successfully restored.

2) All jumpers are in default position.

3) All status LEDs are lit green: no one red.

4) Repeating power cycle does not result in BIST status change.

But even just successful programming a pure VHDL-based LED toggling (or even setting on steady '1') does NOT have any effect.

Measuring signal by scope confirms low (GND) level, no matter what is programmed on PL.

My question is: What can be the cause of apparent disabling the PL LEDs indication? Maybe I need to set a jumper to a non-default position, but which one?

Thank you!

Stay healthy!

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andresb
Xilinx Employee
Xilinx Employee
1,135 Views
Registered: ‎06-21-2018

Hi Michael,

Have you followed the Debug Checklist?

https://www.xilinx.com/support/answers/68386.html

Where does it not behave as expected?

Can you share the SN for your board (from the stickers)?

Thanks,
Andres

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1,106 Views
Registered: ‎02-05-2020

Hi Andres,

yes, I followed the debug checklist and the latest <https://www.xilinx.com/support/documentation/boards_and_kits/zcu102/ug1182-zcu102-eval-bd.pdf> (no error indications, DS33 is off).

The SN of the board: 881430081828-87740

Thank you!

andresb
Xilinx Employee
Xilinx Employee
1,086 Views
Registered: ‎06-21-2018

Hi Michael,

By the SN, I believe it could be related to this Design Advisory:
https://www.xilinx.com/support/answers/71968.html

Have you ever gone to the process outlined in AR 66811?:
https://www.xilinx.com/support/answers/66811.html

Thanks,
Andres

 

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1,066 Views
Registered: ‎02-05-2020

Hi Andres,

this looks very promising:

"ZCU102 board:

To identify the affected date code, look for a board serial number with a date code earlier than 1847-YYWW."

As it looks like a power management issue.

I will try the programming the PMBus voltage regulators as soon as I get a Maxim Integrated POWERTOOL002# dongle.

Thank you very much!

Best Regards,

Michael

andresb
Xilinx Employee
Xilinx Employee
1,052 Views
Registered: ‎06-21-2018

Sounds good! Let us know how it goes...

I know the free Maxim dongle wouldn't take too long in normal times, hopefully you'll get it quick!

Thanks,
Andres

 

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971 Views
Registered: ‎02-05-2020

Hi Andres,

now it works! Both, the board self-test and my LED PL test.

However, some update would be nice:

1) Maxim Digital PowerTool Software V2.32.03 (as the previous link was dead on their web-site): https://www.maximintegrated.com/en/design/software-description.html/swpart=SFW0008830B

2) <ZCU102_Power_Controllers_Reprogramming_Steps.pdf> (with some short comments of mine)

Thank you!!!

Best regards,

Michael

andresb
Xilinx Employee
Xilinx Employee
962 Views
Registered: ‎06-21-2018

Hi Michael,

Fantastic to hear that it's working, thanks for the update!

I'll ask for the link to be updated and suggest your comments to be added, as well.

Thanks,
Andres

 

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