Trimble 5700 - Firmware

5700/5800 GPS Receiver User Guide 59
General Operation 4
5700 Operation
On Port 3, the output voltage is approximately 0.5 V less than the
input voltage. For example, if power is being supplied from the
internal Lithium ion batteries, the maximum battery voltage is 8.4 V,
so the maximum output voltage is 7.9 V.
Note – When you start a survey using Trimble Survey Controller, and
you are using an external radio, the software automatically enables
power output on Port 3.
48.4 Firmware
A receiver’s firmware is the program inside the receiver that makes
the receiver run and controls the hardware. When you need to upgrade
the firmware for your 5700 receiver, Trimble recommends that you
use WinFlash. For more information, see WinFlash Software, page 83.
C
Warning – Upgrading the firmware deletes all application files on the
5700 receiver.
An alternative method of upgrading your firmware is to copy the .elf
file directly to the CompactFlash card from your computer.
To do this:
1. Connect the CompactFlash card to your desktop computer.
2. Using Windows Explorer, copy the .elf file from your computer
to the CompactFlash card.
3. Disconnect the CompactFlash card from your computer and
insert it into the receiver.
4. Turn the receiver off.
5. Hold down d and press p.
The receiver starts up in Monitor mode, automatically detects
the newer version of the firmware, and installs it. In Monitor
mode, the red SV Tracking LED is lit solidly and the yellow
Logging/Memory LED flashes slowly.
The upgrade takes about two minutes. Once the upgrade
procedure is complete, the receiver restarts automatically.