TE0841-02 HR IO not detecting external voltage change

[srg]

Hello,

I am using TE0841-02 SoM with TEBA0841-02 Daughter card and TE0790-03 Xmod.
TEBA0841-02 DIP SW setting(0000) XMOD setting(1000)
I have set VCCIOA to 3.3V which is HR bank 64 of TE0841-02 . I am observing the signal assign to TEBA0841 J20 connector not getting sense by FPGA.
I have added ILA in design and it always show logic '0'.
I am supplying power to TEBA0841-02 through J3 5(3.3V) 6(GND) using lab power supply.
Some Other observations are
If I measure voltage at J20 pin 5 or 45 pin number voltage is appox 4V.
Board consuming more current when i connect USB cable to XMOD.

Thank you

[JH]

Hi,
this is the same board like on this post:
https://forum.trenz-electronic.de/index.php/topic,1325.0.html
?

If I measure voltage at J20 pin 5 or 45 pin number voltage is appox 4V.

J20 Pin5 is 3.3V power domain. --> same like J3-5 --> so this is your external lab power supply.

This power rail should have 3.3V. It can happens that you has damaged some components now.

--> Reduce voltage of your external lab power supply, so that you has again 3.3V. Maybe it works again, in case nothing was damaged.

PS: this is the reason for your JTAG problem on:  https://forum.trenz-electronic.de/index.php/topic,1325.0.html

br
John

[srg]

Hello John,

This is not same board. I have 2 set of boards. In this setup JTAG(using XMOD) is working and FPGA device is also detecting.
But voltage Bank 64 IO not sampling correct(3.3V) IO level.

Thank You.

[JH]

Hi,
you wrote:

If I measure voltage at J20 pin 5 or 45 pin number voltage is appox 4V.

This is to much for HR banks, so I think FPGA Bank is damaged, see:
https://www.xilinx.com/support/documentation/data_sheets/ds892-kintex-ultrascale-data-sheet.pdf
page 1

br
John