86 Keysight FieldFox Handheld Analyzers Service Guide
Theory of Operation
Firmware Related Information
5-
The System Information screen indicates the time and date of the most recent
erase.
See Chapter 8 for instructions on executing the Erase User data utility.
Error Log
See Chapter 8 for instructions on viewing the error log.
The error log is cleared each time the analyzer is powered off.
Generally, an entry in the error log is created whenever an error message is
displayed.
EXAMPLE: Attempting to set the frequency to a value of “.” (a decimal point),
will generate an entry in the error log.
Firmware Upgrades
Firmware upgrades are available on the Internet. Refer to instructions in the
“Update FieldFox Firmware” section of the FieldFox Analyzer User’s Guide (Part
Number N9927-90001) for details.
See Chapter 8 for instructions on viewing the current firmware revision.
The following information will be included in the display.
— Firmware Release = FieldFox application firmware revision
— FPGA Rev = code revision for FPGA
— SBM Boot Rev = revision of boot code for System Microcontroller
— SBM Main Rev = revision of main code for System Microcontoller
A firmware upgrade includes three sections:
— the FieldFox application firmware and the Windows CE operation system on
the A6 SOM board.
— the firmware in the System Monitor Microcontroller on the A5 System
board.
— the FPGA code on the A5 System board.
The System Monitor firmware update and the FPGA code update are executed
only if not up-to-date.
It is important to maintain power to the analyzer during the update process.
After unplugging the USB flash memory stick during the firmware upgrade
process, wait for the analyzer to enter its default operating mode before
operating the analyzer.
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