Altera Arria V GX - Manual (Page 41)

Chapter 6: Board Test System 6–19
The Clock Control
November 2014 Altera Corporation Arria V GX Starter Kit
User Guide
Power Information
The Power information control displays current, maximum, and minimum power
readings for the following unit:
■ mAmp
Power Graph
The power graph displays the mA power consumption of your board over time. The
green line indicates the current value. The red line indicates the maximum value read
since the last reset. The yellow line indicates the minimum value read since the last
reset.
Graph Settings
The following Graph settings controls allow you to define the look and feel of the
power graph:
■ Scale select —Specifies the amount to scale the power graph. Select a smaller
number to zoom in to see finer detail. Select a larger number to zoom out to see the
entire range of recorded values.
■ Update speed —Specifies how often to refresh the graph.
Reset
This Reset control clears the graph, resets the minimum and maximum values, and
restarts the Power Monitor.
The Clock Control
The Clock Control application sets the Si571 programmable oscillator to any
frequency between 10 MHz and 810 MHz with eight digits of precision to the right of
the decimal point.
The Si5338 device has four independently programmable outputs. All four outputs
are programmable between 16 KHz and 350 MHz. All four outputs can support the
higher frequencies, but they cannot be programmed for multiple frequencies above
350 MHz. If you want multiple outputs above 350 MHz, all outputs above 350 MHz
must be the same frequency, and must be frequencies from 367 MHz to 473.33 MHz or
from 550 MHz to 710 MHz. Channel 0 of Si5338 drives a 2-to-4 buffer that drives a
copy of the clock to all four edges of the FPGA.
The Clock Control application runs as a stand-alone application. ClockControl.exe
resides in the <install
dir>\kits\arriaVGX_5agxfb3hf35_start\examples\board_test_system directory. On
Windows, click Start > All Programs > Altera > Arria V GX Starter Kit <version> >
Clock Control
to start the application.
f For more information about the Si5338/Si571 and the Arria V GX starter board’s
clocking circuitry and clock input pins, refer to the
Arria V GX Starter Board Reference
Manual .