15
Optimal configurations and calibration are only available in 3-tap mode. The Channel
Emulation feature is only supported in 7-tap mode.
▪
Channel emulation.
To emulate channel loss, start by clicking the emulation button. When
enabled, the emulation button will turn to green.
You can insert the magnitude of the loss at the Nyquist frequency (half of the configured
baud rate) in decibels. In addition, an S-parameter file can be selected, loaded, and used
to calculate the taps creating the entered loss value.
TX Auto-Optimization mode
This feature is still undergoing testing. Functionality is
available in limited used cases as of version 2.4.
Operate in 7-tap mode to enable TX auto-optimization mode.
After enabling 7-tap mode, you can now apply the auto-
optimization settings where the ThunderBERT GUI will calculate the optimized FFE taps for the
current setup.
To
apply
the TX Optimization settings:
▪
Enable TX Optimization
by clicking on the button
right next to the Tab. When enabled, the button
turns green.
▪
Click on the Optimization
button to calculate the
optimal FFE Taps for the testing setup.
You can reset the
FFE Taps values
anytime by clicking on the
Reset button
.
To perform the Optimization process on the current setting,
a lock must be detected on the channel in question.
Figure 23: Channel
emulation enabled
Figure 24: 7-tap FIR filter with
channel emulation enabled
NOTES:
