Xilinx VC709 User manual
April 2013
VC709 Si570 Fixed
Frequencies
XTP239
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Revision History
Date Version Description
04/03/13 1.0 Initial version.
VC709 Si570 Fixed Frequency Overview
Xilinx VC709 Board
Software Requirements
Setup for the VC709 Si570 Fixed Frequency
VC709 Si570 Fixed Frequency
Changing an Si570 from 156.25 to 19.440 MHz
Other Fixed Frequencies
VC709 FMC Si570 Fixed Frequency
References
Note: This presentation applies to the VC709
VC709 Si570 Fixed Frequency Overview
Description
–The VC709 board has a Silicon Labs Si570 Programmable Oscillator that
defaults to 156.25 MHz. Via a series of bitstreams, the frequency of this device
can be changed. This tutorial shows how to change the output frequency of this
device.
Note: Presentation applies to the VC709
Xilinx VC709 Board
Vivado Software Requirements
Xilinx Vivado Design Suite 2013.1, Design Edition
Note: Presentation applies to the VC709
ISE Software Requirement
Xilinx ISE 14.5 software
–Needed for ChipScope
Note: Presentation applies to the VC709
VC709 Setup
Connect a USB Type-
A to Mini-B cable to
the USB UART
connector on the
VC709 board
–Connect this cable to
your PC
VC709 Setup
Connect a USB Type-
A to Micro-B cable to
the USB JTAG
(Digilent) connector
on the VC709 board
–Connect this cable to
your PC
–Power on the VC709
board for UART Drivers
Installation
VC709 Setup
Reboot your PC if necessary
Right-click on My Computer
and select Properties
–Select the Hardware tab
–Click on Device Manager
Note: Presentation applies to the VC709
VC709 Setup
Expand the Ports
Hardware
–Right-click on Silicon Labs
CP210x USB to UART
Bridge and select Properties
Note: Presentation applies to the VC709
VC709 Setup
Under Port Settings tab
–Click Advanced
–Set the COM Port to an open Com Port setting from COM1 to COM4
Note: Presentation applies to the VC709
VC709 Setup
Board Power must be on before starting Tera Term
Start the Terminal Program
–Select your USB Com Port
–Set the baud to 9600
Note: Presentation applies to the VC709
Setup for VC709 Si570 Fixed Frequency
Unzip the VC709 Si570 Fixed Frequencies Design Files (2013.1 C) to
your C:\ drive
–Available through http://www.xilinx.com/vc709
Note: Presentation applies to the VC709
VC709 Si570 Fixed Frequency
Open ChipScope Pro and select JTAG Chain →Digilent USB Cable…
(1)
Verify 30 MHz operation and click OK (2)
1
2
Note: Presentation applies to the VC709
VC709 Si570 Fixed Frequency
Click OK (1)
1
Note: Presentation applies to the VC709
VC709 FMC Si570 Fixed Frequency
Select Device →DEV:0 MyDevice0 (XC7VX690T) →Configure…
–Select <Design Path>\ready_for_download\frequency_monitor.bit
Note: Presentation applies to the VC709
VC709 FMC Si570 Fixed Frequency
Select File → Open Project…
Select <Design Path>\ready_for_download\
vc709_si570_freq_monitor.cpj
Note: Presentation applies to the VC709
VC709 FMC Si570 Fixed Frequency
The VIO Console will now show 200 MHz for the system clock, and
156.25 MHz for the User Clock
Note: Presentation applies to the VC709
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