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GETTING STARTED
Configuring the Firmware
CONFIGURING THE FIRMWARE
The GNSSDO contains an ESP32-WROVER processor which
is able to discipline the frequency of the internal SiT5358
temperature-controlled crystal oscillator. By linking the
CONFIG ESP32 USB-C port to your computer, you can view
and modify the settings of the ESP32 firmware using a
terminal emulator.
1. Connect the GNSS antenna. Inside your GNSSDO kit,
you will find the L1/L2/L5 GNSS "UFO" antenna. It has a TNC
connection. Use the supplied TNC-SMA cable to connect the
antenna to the GNSSDO GNSS SMA connection. Make sure
the antenna is securely mounted to a structure so that it
cannot be moved and has a clear view of the sky.
2. Connect to the CONFIG ESP32 USB port. To modify the
ESP32 firmware settings, you need to connect a computer
to the CONFIG ESP32 USB-C port and use a Serial Terminal
to change the settings. You may need to install a driver first,
so that the CH340 serial interface chip is recognized.
5
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