KCU105 Board User Guide www.xilinx.com 80
UG917 (v1.4) September 25, 2015
Chapter 1: KCU105 Evaluation Board Features
The system controller user interface (see FMC Menu Options in Appendix C) allows the FMC
IPMI routine to be overridden and an explicit value can be set for the VADJ_1V8_FPGA rail.
Monitoring Voltage and Current
Voltage and current monitoring and control for the Maxim power system is available
through either the KCU105 system controller or via the Maxim PowerTool™ software
graphical user interface.
The KCU105 system controller is the simplest and most convenient way to monitor the
voltage and current values for the power rails listed in Tab le 1-2 5. For details on how to use
this built-in feature see PMBus Menu and SYSMON Menu in Appendix C, System Controller.
The Maxim InTune power controllers listed in Tabl e 1-2 5 can also be accessed through the
PMBus connector J39. Using this connector requires the Maxim PowerTool USB cable
(Maxim part number MAXPOWERTOOL002#). This cable can be ordered from the Maxim
Integrated website [Ref 36]. The associated Maxim PowerTool GUI is also downloadable
from the Maxim website.
SYSMON Power System Measurement
UltraScale FPGAs provide an analog converter (SYSMON) block. The SYSMON block
contains a single 10-bit 0.2 MSPS ADC. The KCU105 board SYSMON ADC interface includes
current measuring capability for all FPGA voltage rails. The rail current measurements are
made available to SYSMON via an Analog Devices ADG707BRU multiplexer U75. Each rail
has a TI INA333 op amp strapped across a series current sense resistors' Kelvin terminals.
This op amp has its gain adjusted to give 0.75V - 1V at the expected full scale current value
for the rail.
The SYSMON block can measure the internal VCCINT, VCCAUX, and VCCBRAM rail voltages
and the external MGTAVCC and MGTAVTT rail voltages using SYSMON channels AD0 and
AD8, respectively.
To Next Page
Loading...
Need help?
General
