Altera Stratix V Advanced Systems Instrukcja Użytkownika Pobierz pdf (Strona 34)

5–16 Chapter 5: Board Test System

The Clock Control

Stratix V Advanced Systems Development Kit February 2013 Altera Corporation

User Guide

The Clock Control application runs as a stand-alone application. ClockControl.exe

resides in the

<install dir>\kits\stratixVGX_5sgxea7nf45_as\examples\board_test_system

directory. On Windows, click Start > All Programs > Altera > Stratix V Advanced

Systems Development Kit <version> > Clock Control to start the application.

f For more information about the Si5338 oscillator and the Stratix V GX advanced

systems board’s clocking circuitry, default frequencies, and clock input pins, refer to

the Stratix VAdvanced Systems Development Board Reference Manual.

The Clock Control communicates with the MAX V device on the board through the

JTAG bus. The Si5338 (U53, U82, U91, U95, and U100) programmable oscillators are

connected to the MAX V device through a 2-wire serial bus. Clock frequencies will

return to the default values after power cycling the board. Figure 5–8 shows the Clock

Control.

The following sections describe the Clock Control controls.

Read

The read control reads the current frequency setting for the oscillator associated with

the active tab.

Default

The Default control sets the frequency for the oscillator associated with the active tab

back to its default value. This can also be accomplished by power cycling the board.

Figure 5–8. The Clock Control

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Altera Stratix V Advanced Systems Instrukcja Użytkownika Strona 34