Tektronix H600 RFHawk, Service Manual

Page: 45 / 109

Theory of Operation
Built-in Drivers.
The Processor board is con fi gured with vendor supplied
Windows CE drivers for all ports. You can reinstall these drivers by reloading
the operating system.
Flash ROM.
The Processor board has the following fl ash ROM:
32 MB Flash ROM for the operating system and built-in drivers
32 MB Flash ROM for the nonvolatile fi le system memory (\BuiltInDisk)
SDRAM. The Processor board has 64 MB of DRAM. The Windows CE Control
panel provides SDRAM allocation of program and data storage memory ( Start
> Settings > Control Panel > System > Memory ).
NOTE.
When entering the Suspend state, registry information is automatically
backed up to the fl ash ROM fi le system from SDRAM. During the suspend state,
the SDRAM retains its contents. After approximately 2 hours, the analyzer
powers down the SDRAM and enters the Shutdown (power down) state. User
application data is lost when entering the shutdown state unless previously stored
in nonvolatile memory.
Firmware Upgrade.
You can upgrade platform fi rmware over the RS-232 and
USB ports, as well as by using a PCMCIA fl ash memory card.
Hardware and Software Con fi guration Data. To check the hardware and software
con fi gurations of the platform, do the following:
1. Select Start > Programs > Tektronix Utilities > System Con fi guration .
2. Open the Software or Hardware tab.
3. Select the item of interest from the list and then select Properties .
Electronic Keying.
The platform supports electronic keying from the instrument
modules to maintain the registry. The registry is updated at each power up.
Registry information includes module name, module type, module description,
and HW/SW/FW version numbers and location. If the platform detects
con
fi guration incompatibilities, the user is noti fi ed.
Firmware Backup. The platform backs up the the system registry to fl ash memory
during the power down process.
H600 & SA2600 Service Manual 2–3