Read, Clear, Set new frequency – Altera Cyclone V GX FPGA User Manual

Page 30: Read –14 clear –14 set new frequency –14

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6–14

Chapter 6: Board Test System

Configuring the FPGA Using the Quartus II Programmer

Cyclone V GX FPGA Development Kit

October 2012

Altera Corporation

User Guide

Read

This control reads the current frequency setting for the oscillator associated with the
active tab.

Clear

This 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.

Set New Frequency

The Set New Frequency control sets the programmable oscillator frequency for the
selected clock to the value in the Target frequency control for the Si571 and the
Frequency

controls for the Si5338 (U25). Frequency changes might take several

milliseconds to take effect. You might see glitches on the clock during this time. Altera
recommends resetting the FPGA logic after changing frequencies.

Configuring the FPGA Using the Quartus II Programmer

You can use the Quartus II Programmer to configure the FPGA with a specific .sof.
Before configuring the FPGA, ensure that the Quartus II Programmer and the
USB-Blaster II driver are installed on the host computer, the USB cable is connected to
the FPGA development board, power to the board is on, and no other applications
that use the JTAG chain are running.

To configure the Cyclone V GX FPGA, perform these steps:

1. Start the Quartus II Programmer.

2. Click Auto Detect to display the devices in the JTAG chain.

3. Click Add File and select the path to the desired .sof.

4. Turn on the Program/Configure option for the added file.

5. Click Start to download the selected file to the FPGA. Configuration is complete

when the progress bar reaches 100%.

1

Using the Quartus II programmer to configure a device on the board causes other
JTAG-based applications such as the Board Test System and the Power Monitor to lose
their connection to the board. Restart those applications after configuration is
complete.

1

If the Quartus II programming window is already open, and then you power cycle the
board, you may be required to click Hardware Setup in the Quartus II Programmer
window and reselect USB-Blaster II in order to properly detect the JTAG chain.

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