Trenz Electronic Products > UltraScale

PL Power Status OFF, cannot connect PL TAP

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gawrcool:
Ty John,
I use stand alone with the little jack 12V (not the big ATX connector).
Indeed, I've just tested. After power on, I've to push on the power PB S1 in order to be able to download firmware in the PL.

Kayasdev:
Hello

I am facing the same issue with trenz TE0820-02 Board. Is there a way to recovery it.


Thanks
Kayas

JH:
Hi,
you mean

--- Quote ---[Labtools 27-3421] xczu3_0 PL Power Status OFF, cannot connect PL TAP.  Check POR_B signal.
--- End quote ---
?
This happens if ZynqMP is not configured and Boot Mode is unequal JTAG. In this case this warning can be ignored.
Note: PS will be not initialised with bitstream!
br
John

Kayasdev:
Hi,
Thanks for reply.

Can this be a reason for my board unable to boot. It boots till FSBL. FSBL log print I get 4 times as shown below.

Xilinx Zynq MP First Stage Boot Loader
Release 2018.2 Apr 20 2019 - 11:34:42

--------------------------------------------------------------------------------
TE0820 Board Initialization

--------------------------------------------------------------------------------

Thanks,
Kayas

JH:
Hi,
your board seems to boot, but it stops on FSBL or PMU or when he try to start application.

Which carrier did you use? Wich external power supply? some current limit?

What's happens if you use our current reference design? --> prebuilts Boot.bin (barmetal Hello TE0820 and Uboot for linux available) and imag.ub (for linux)

* https://wiki.trenz-electronic.de/display/PD/TE0820+Test+BoardWhich assembly version did you use? Did you select the correct one?

* https://wiki.trenz-electronic.de/display/PD/TE0820+Test+Board#TE0820TestBoard-Hardware
If this also not works, can you create the FSBL with Debug Flags?

* https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18842019/FSBL

br
John

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