Hardware Access

This guide explains how to access the ADTF-3175x evaluation module for advanced configuration and development.

SD Card Configuration

The device ships with read-only Linux partitions. You can modify the micro-SD card to enable write access by editing the extlinux.conf file.

Enabling Write Access

Replace instances of “ro” with “rw” in the configuration file:

Case 1: Direct modification on computers without encryption

  1. Remove the microSD card from the module

  2. Insert into your computer’s SD card reader

  3. Navigate to the boot partition

  4. Edit extlinux.conf and change “ro” to “rw”

  5. Save and safely eject the card

Case 2: Network sharing approach for encrypted systems

If your system encrypts removable media, share the SD card over the network to another machine for editing.

USB-Serial Connection

The ADTF-3175x connects via USB-Serial through a micro-USB cable.

Connection Steps

  1. Connect the micro-USB cable to the module’s serial port

  2. Identify the COM port in Windows Device Manager

  3. Use PuTTY or similar terminal software

  4. Configure serial connection:

    • Baud rate: 115200

    • Data bits: 8

    • Stop bits: 1

    • Parity: None

    • Flow control: None

Default Credentials

  • Username: analog

  • Password: analog

Network Connectivity

WiFi Setup

Two approaches are available:

Manual command:

wpa_passphrase <SSID> <Password> | sudo tee /etc/wpa_supplicant/wpa_supplicant-wlan0.conf

Automated script:

./adi-enable-wifi.sh <SSID> <Password>

Ethernet

Ethernet connectivity requires a special Harting connector cable (model 33480147826005).

Safety Warnings

Warning

Improper Linux commands can disable the device. The stock image can be re-flashed if problems occur.

Warning

Always properly shut down Linux before power cycling:

sudo systemctl poweroff

Failure to do so may corrupt the filesystem.