4 System
4.4 Power On
functionality for both options, so you must decide which FPGA program you want
loaded.
When licenses allow for both FPGA image versions to be available, and you have not
explicitly chosen an FPGA image version, then, when the firmware is updated, the
Time Domain Scan version will be loaded. In the absence of all licenses, the
Enhanced Sweep Speed version will be loaded. Once you have explicitly chosen an
FPGA image version, using the FPGA Configuration dialog, any future firmware
updates will continue to load the chosen version as long as it is licensed.
Example: loading the Time Domain Scan FPGA image, removing the TDS license,
and then updating the firmware will result in the Enhanced Sweep Speed version
being loaded.
When multiple capabilities are licensed, the FPGA Configuration presents a dialog
that tells you that there is insufficient space to fit all the licensed capabilities, and
asks you to choose one of the FPGA programs (images).
If you remove licenses, it is possible to end up with an unlicensed capability loaded
in the FPGA while a licensed capability is not loaded. In this case, the dialog does
not present the Preference group and shows a message about unlicensed/licensed
capabilities. You can dismiss the dialog if the licensed capability is not currently
needed, and you do not want to take the time to load the licensed FPGA image.
However, this dialog will continue to appear each time the instrument is restarted.
Behavior when the Enhanced Sweep Speed FPGA Image is Loaded
When the Enhanced Sweep Speed version of the FPGA image is loaded, sweep
behavior still depends on the licenses:
–
Option FS2 gives full FPGA enhanced sweep speed
–
Option FS1 gives software implemented enhanced sweep speed
–
Neither Option FS1 nor FS2 – no enhanced sweep speed
–
Both Options FS1 and FS2 – same as Option FS2, the full FPGA enhanced sweep
speed
If EMI Receiver Mode and TDS option are licensed, and the Enhanced Sweep Speed
FPGA image is loaded, then you will not have the proper FPGA image loaded to fully
support EMI Receiver Mode. In particular, the Frequency Scan measurement cannot
use Scan Type “Time Domain Scan” (this is the normally the default Scan Type for
instruments with the TDS option). Instead, EMI Receiver Mode behaves as if the TDS
option is not licensed.
Behavior when the Time Domain Scan FPGA Image is loaded
When the Time Domain Scan version of the FPGA image is loaded, EMI Receiver
Mode works as expected with the TDS option licensed, but the Option FS2 capability
Short Range Comms & IoT Mode User's &Programmer's Reference 1786
To Next Page
Loading...
Need help?
General
