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This version (23 Feb 2018 14:38) was approved by Alexandra Banut.

Table of Contents

Production testing of the AD-FMCDAQ2 / AD-FMCDAQ3

Overview

The production testing is quite simple. Since each board has been completely characterized, and we know the layout is good, we can just look for gross errors.

The test is broken down into the following sections:

Temperature

The ad7291.in_temp0_raw is the raw results from the AD7291 - which is 0.25°C. 80 refers to 80 steps of 0.25°C or 20°C, and 160 refers to 40°C. This allows the tests to be done in a normal lab setting.

Voltage

This section requires checking the schematics. Specifically, sheet 7 shows how the AD7291 is connected. 1% resistors connect various voltages, and things are divided down to ensure that the voltage levels don't exceed full scale.

The explanation of how the valid ranges are calculated is similar to the same tests for the FMComms boards.

Signals

First the noise floor is checked when no input is supplied to make sure it is within a certain threshold. Then tones of approximately 97 MHz, 185 MHz, and 233 MHz are input against each channel individually and the fundamental frequency as well as the 2nd through 7th harmonics are checked to make sure they are within set bounds.

Required Software

Creating a ZY706 carrier SD test card

  • First, write the latest available SD card image found to a spare card and prepare the card to boot into Linux.

Creating a Raspberry Pi SD test card

  • The SD image used is based on Raspbian with Desktop.

Required hardware

  • Zynq ZC706
  • Raspberry Pi4
  • FMCDAQ2/3
  • RF loopback cables (2x)
  • External monitor connected to the Raspberry Pi via micro HDMI
  • Keyboard and mouse (with USB hub if they aren't part of a combo device)
  • Ethernet cable (needs to be plugged between Raspberry Pi and carrier)
  • QR code scanner
  • DAQ2/DAQ3 test SD Card
  • Raspberry Pi SD Card

Required setup

  1. Attach the RF loopback cables to the board. The images at the bottom of the page show the correct placement for each type of AD-FMCDAQ board.
  2. Insert the SD card into the carrier board.
  3. Insert the AD-FMCDAQ2/3 board onto the carrier
  4. Connect the HDMI cable to Raspberry Pi
  5. Connect USB keyboard to Raspberry Pi
  6. Insert SD card into Raspberry Pi
  7. Connect Ethernet cable between Raspberry Pi and the carrier
  8. Connect the scanner to Raspberry Pi
  9. Power the carrier board and Raspberry Pi

Make sure to connect to your WIFI Network before testing. You can exit the test window by pressing CTRL+C in order to access the connection. Reboot the system in order to return to the test window.

Test process

Firstly, make sure all the required steps from the setup explained above are completed. Once the setup is ready, testing should be done using the following steps:

  • Power the carrier board and the Raspberry Pi. The following screen will appear once the system has booted.

  • The testing sequence can be started by selecting one of the menu items. In order to start testing, an Ethernet cable should be connected between Raspberry Pi and DUT.
  • Test 1 for FMCDAQ3
  • Test 2 for FMCDAQ2
  • At the beginning of every test, the connection with DUT is checked. If the connection is correctly established, the following message will be printed.

  • Use the scanner to scan the QR code on the board
  • If one of the tests failed, the FAILED message will be printed as in the screen capture below:

  • In case of a failed test, the tester can repeat the test immediately. The test can be repeated an undefined number of times.
  • After completing the test, power off the carrier by typing 4. After several seconds, power off the carrier board using the physical switch.
  • Remove the DAQ2/3 card and place the heatsink according to the pictures below
  • In order to power off the Raspberry Pi, please type 3 and enter.
When testing is finished, ZC706 and the Raspberry Pi should always be powered off from terminal before power is unplugged, otherwise the SD cards can be corrupted. First select item 4 to power off the carrier. After a few seconds, turn off the switch. After the ZC706 is off, the Raspberry Pi can be turned off selecting item 3.
Cable placement
FMCDAQ2 FMCDAQ3
Heatsink placement
FMCDAQ2 FMCDAQ3 top FMCDAQ3 bottom
21 Nov 2014 14:19 · Tim Harder
resources/eval/user-guides/ad-fmcdaq3-ebz/testing.txt · Last modified: 23 Feb 2018 14:37 by Alexandra Banut

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