VCU1287 Characterization Board
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83
UG1121 (v1.0) December 11, 2015
Appendix D:
System Controller
(The returned values include diagnostic information.)
Option 2: Set VCU1287 Si5368 Frequency
Enter the Si5368 frequency (0.002-808MHz):
200
Choose Si5368 operating mode:
1 - Auto-Select
2- Free-Run using XA-XB crystal
1
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 will hang up while executing these
commands.
Option 3: Save VCU1287 Clock Frequency to EEPROM
VCU1287 System Controller
- Save Menu -
-----------------------------
1. Save VCU1287 Si570 Frequency to EEPROM
2. Save VCU1287 Si5368 Frequency to EEPROM
0. Return to Clock Menu
1
Saving Si570 Frequency = 200.000 MHz to EEPROM
2
Saving Si5368 Frequency = 200.000 MHz to EEPROM
Option 4: Restore VCU1287 Clock Frequency from EEPROM
1. Restore VCU1287 Si570 Frequency from EEPROM
2. Restore VCU1287 Si5368 Frequency from EEPROM
0. Return to Clock Menu
1
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