Cyclone® V GT FPGA Development Kit User Guide

ID 792833
Date 2/21/2024
Public
Document Table of Contents

6.5.2.5. Set New Frequency

This control sets the programmable oscillator frequency for the selected clock to the value in the Target frequency control for the Si570 and Si571 oscillators. Frequency changes might take several milliseconds to take effect. You might see glitches on the clock during this time. Intel recommends resetting the FPGA logic after changing frequencies.

For more information about the Si570/Si571 and the Cyclone® V GT FPGA development board’s clocking circuitry and clock input pins, refer to the Cyclone® V GT FPGA Development Board Reference Manual.