KCU1250 User Guide
66
UG1057 (v1.0) December 19, 2014
Appendix D:
System Controller
Programmable Clocks Menu
The clock menu is used to set the frequency of the SuperClock-2 module (see
) clock sources.
KCU1250 System Controller
- Clock Menu -
-----------------------------
1. Set KCU1250 Si570 Frequency
2. Set KCU1250 Si5368 Frequency
0. Return to Main Menu
Clock Menu Options
This section includes a description of the clock menu options, presenting arbitrary sample
value entries and the system controller responses. The entry value commentary is shown in
parentheses.
• Set KCU1250 Si570 Frequency
Enter the Si570 frequency (10-810MHz):
200
(Enter a value between 10 and 810.)
Freq:200.0000000000 HS_DIV=7 N1=4 DCO=5600.0 RFREQ=0x030FFFF785
(The returned values include diagnostic information.)
• Set KCU1250 Si5368 Frequency
Enter the Si5368 output frequency (0.002-808MHz):
200
Freq:200.0000000000 fosc=5600.000MHz f3= 5.000KHz LBW=0.200KHz
N1=28 N1_HS=7 NC1_LS=4 N2=1120000 N2_HS=4 N2_LS=280000 N31=40000
N32=22857
(The returned values include diagnostic information.)
Note:
Several seconds might elapse before the result is returned.
IMPORTANT:
Make sure J121 is set to position (2-3) DUT I2C DIS to isolate the DUT I2C signals and
prevent bus contention. If contention occurs, the system controller stalls while executing the above
commands.
• Return to Main Menu
