Other Functions
manual sync pos - This is used to manually set the start of the initial capture buffer. Normally this position
is calculated automatically by the GUI.
sync rep - Specifies the number of syncs. Typically, only one sync is required.
Update - Selecting CFR ON turns on the CFR block. The PAR/HR button is used to update the signal after
changing the PAR and or HR settings. The CFR Taps button is used to update the CFR coefficients.
DSP CFR Conf - This button, located at the top middle of the GUI, is used to open a pop up (see
) to allow the user to specify a carrier configuration which the DSP will use to calculate the CFR
filter coefficients based on carrier prototype filters. To enable the DSP CFR CONF button, the user must
first click on the Expert Mode option. This is different from the wideband composite CFR filter generation
done in the Auto CFR calculation on the host computer.
Figure 25. DPD CFR Configuration Window
The type of signal, baseband sampling and carrier location is specified and then sent to the DSP to
calculate and update the CFR coefficients.
Load Signal - This button loads the composite input signal into the GUI for processing. This will cause the
signal to be rescaled if needed based on the VCXO and sample rate
24
GC5325 System Evaluation Kit
SLWU063F
–
April 2009
–
Revised April 2011
Copyright
©
2009
–
2011, Texas Instruments Incorporated
