Versions Compared


  • This line was added.
  • This line was removed.
  • Formatting was changed.


  1. Assemble the ZCU216 (main board) with the CLK-104 clocking board as shown.

  2. Carefully attach the add-on card extender board with the screws provided.

    1. XM650

    2. XM655

  3. Example: Loopback between DAC Tile 0: DAC 0 and ADC tile 0: ADC 0.

    1. Connect the HC2-to-SMA cables to locations JHC1 and JHC5 and tighten with the hex key provided.

    2. Connect pins 0 and 1 of JHC1 and JHC5 to the 10MHz-to-1GHz baluns on the XM655/616B as show below. We will generate a single tone at 200MHz hence the choice of baluns 10MHz-1GHz. An additional Low Pass Filter (2500MHz) can be added to suppress the DAC image. For other waveforms, a different choice of baluns and additional filters provided can be used.

    3. Use the cable provided to interconnect J13 and J17 and complete the loop-back as shown:

  4. Connect the power and network cables.

    The RF DC Evaluation tool uses Windows OS Automatic Private IP Addressing (APIPA) feature so that you only have to connect a network cable between the board and host computer. 

    For use case where APIPA is not suitable, please see Network Connection and SD Card Details - RF DC Evaluation Tool - Network connection and SD card details

  5. Change DIP switch SW2 to SD boot mode. The ZCU216 will have all Jumpers and Switch Settings in their default position when unboxed. If necessary, you can refer to “Default Jumper and Switch Settings” in the ZCU216 Board User Guide to check.

  6. Note the location of power switch.

  7. Note the location of DIP switch SW2.


  1. Connect to a power source and turn on the board power using switch SW15.

  2. The board powers on and boots from the SD card using the programmed images.

  3. The DONE and INIT_B LEDs will turn green

    Image RemovedImage Added

  4. It takes approximately 60s for the operating system to fully boot and for the embedded software to start.


You can check this with single-click on “Clock Settings” to see;


Checking the Clock Distribution Configuration

Click on "Clock Distribution".