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Avnet Employee (Super Contributor)
Posts: 76
Registered: ‎04-30-2014
Accepted Solution

AES-FMC-HDMI-CAM-G in ZCU102 pulling voltage supply down

Hello all,

 

One of our local customers has purchased and is using an Avnet FMC card (AES-FMC-HDMI-CAM-G) with a ZCU102 board. They are using it with one of Xilinx' base TRD designs for the ZCU102 board that targets this Avnet board.

 

With the board plugged into the ZCU102 FMC connector it’s pulling an adjustable voltage supply down.

 

According to the TRD on the ZCU102 it’s set to 1.8V, but when the Avnet card is plugged in it is being pulled down to 1.174V. All of the devices the voltage goes to support VCC of at least 1.8-3.3V (some support 1.2 or 1.5-3.3V).

 

Has anyone used this board combination and is able to help along these lines?

 

Thanks,

-=George=-

 

George Miclea
Xilinx Dedicated FAE
Irvine, CA
949-370-7474
Avnet Employee (Super Contributor)
Posts: 76
Registered: ‎04-30-2014

Re: AES-FMC-HDMI-CAM-G in ZCU102 pulling voltage supply down

Hey all,

 

Looks like the customer was able to correct the problem using information from the Xilinx wiki.

 

Here are the details just for sake of completion on this thread:

 

 

On the base TRD design GUI, they were getting “FMC not connected” error displayed.

 

The “normal” sequence to set an FMC card VADJ voltage is to insert the FMC card, turn on the development board, then set the VADJ voltage. However this didn’t work.

 

On the MPSoC base TRD wiki site (see link below) the process to correct this error (set VADJ voltage) is different.

 

You first power up the ZCU102 without the FMC card installed.

Set VADJ to 0.0V.

Plug the FMC card into HPC0.

Set VADJ to 1.8V.

Press POR_B to reset/restart the FPGA.

 

http://www.wiki.xilinx.com/Zynq+UltraScale+MPSoC+Base+TRD+2016.2

HDMI input is not working, GUI displays error message
FMC not connected

  • Frequency: Common
  • Workaround: Based onAR 67127
    • Connect a cable to the USB-UART port, open a terminal emulator and connect to COM3 of the quad-UART (use the same terminal settings as listed in 5.1) -> the MSP430 System Controller can be controlled through this serial terminal
    • Power up the board without the FMC card plugged in to the HPC0 slot -> VADJ will be set by the MSP430 System Controller to 1.8V (default)
    • Use the MSP430 System Controller to turn off VADJ -> the VADJ_FMC LED will turn off
    • Plug in the FMC card to the HPC0 slot
    • Use the MSP430 System Controller to set VADJ to 1.8V -> the VADJ_FMC LED will turn back on
    • Press the POR_B button to reset and reboot the system

 

Thanks,

-=George=-

George Miclea
Xilinx Dedicated FAE
Irvine, CA
949-370-7474
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Avnet Employee (Star Contributor)
Posts: 469
Registered: ‎04-16-2009

Re: AES-FMC-HDMI-CAM-G in ZCU102 pulling voltage supply down

George,

Thank you for sharing this valuable information.

Regards,

Mario.