Production Testing

Overview

The purpose of the test procedure is to identify connectivity issues, poor soldering, and potential manufacturing defects. Some of the issues are directly identified by explicit part-targeted tests, others are implicit, by running adjacent tests.

Test Duration

Step Description

Estimate Time (minutes)

Test bench setup

5 min

Software test

5 min

Total time

10 min

Test Requirements

Required Hardware

Required Software

The test image is provided on a pre-configured SD card.

  • 1 x SD card with the test image

Required Setup

  1. Insert the SD card into the Raspberry Pi.

  2. Connect the Raspberry Pi to a monitor.

  3. Connect the AD-RPI-T1LPSE-SL on top of the Raspberry Pi.

  4. Connect the AD-APARDPFW-SL on top of AD-APARD32690-SL.

  5. Connect the AD-RPI-T1LPSE-SL using a T1L cable to AD-APARDPFW-SL board port P7.

  6. Connect the AD-SWIOT1L-SL to AD-APARDPFW-SL board port P8 using a T1L cable.

  7. Connect the DAPLink programmer to the Raspberry Pi and to the AD-APARD32690-SL board.

  8. Power the Raspberry Pi through AD-APARDPFW-SL using a 12V power supply.

https://media.githubusercontent.com/media/plescaevelyn/adi-documentation/apard-pfwd_production_test/docs/solutions/reference-designs/ad-apard32690-sl/ad-apardpfwd-sl/production_testing/images/cable_connections.png

Figure 1 Cable connections

https://media.githubusercontent.com/media/plescaevelyn/adi-documentation/apard-pfwd_production_test/docs/solutions/reference-designs/ad-apard32690-sl/ad-apardpfwd-sl/production_testing/images/system_setup.png

Figure 2 Complete system setup

Test Process

Wi-Fi Setup

Make sure the Raspberry Pi is connected to Wi-Fi before starting the tests.

  1. Power the Raspberry Pi.

  2. Press CONTROL+C to exit the test screen.

  3. Click on the network and type in the password.

    https://media.githubusercontent.com/media/plescaevelyn/adi-documentation/apard-pfwd_production_test/docs/solutions/reference-designs/ad-apard32690-sl/ad-apardpfwd-sl/production_testing/images/test_process_1_wifi_connection.png

    Figure 3 Wi-Fi connection

  4. After successfully connecting, reboot the Raspberry Pi by following the instructions below.

    https://media.githubusercontent.com/media/plescaevelyn/adi-documentation/apard-pfwd_production_test/docs/solutions/reference-designs/ad-apard32690-sl/ad-apardpfwd-sl/production_testing/images/test_process_2_reboot_conn.png
    https://media.githubusercontent.com/media/plescaevelyn/adi-documentation/apard-pfwd_production_test/docs/solutions/reference-designs/ad-apard32690-sl/ad-apardpfwd-sl/production_testing/images/test_process_3_reboot_conn.png

Running the Tests

After the Raspberry Pi reboots, the test screen will appear on the monitor.

https://media.githubusercontent.com/media/plescaevelyn/adi-documentation/apard-pfwd_production_test/docs/solutions/reference-designs/ad-apard32690-sl/ad-apardpfwd-sl/production_testing/images/testing_command_1.png

Figure 4 Test menu

1) System Test

Type 1 into the terminal then press ENTER to start “1) System Test”.

https://media.githubusercontent.com/media/plescaevelyn/adi-documentation/apard-pfwd_production_test/docs/solutions/reference-designs/ad-apard32690-sl/ad-apardpfwd-sl/production_testing/images/testing_command_1_result.png

Figure 5 System test in progress

If the test is PASSED, the DUT is functional. Unplug it from the AD-RPI-T1LPSE-SL, then from the AD-APARD32690-SL board, and connect the next device under test.

https://media.githubusercontent.com/media/plescaevelyn/adi-documentation/apard-pfwd_production_test/docs/solutions/reference-designs/ad-apard32690-sl/ad-apardpfwd-sl/production_testing/images/testing_command_1_passed.png

Figure 6 System test passed

Attention

If at any point the test fails, retry testing for up to 3 times before considering the board defective.