Intel Agilex® 7 F-Series FPGA (Two F-Tiles) Development Kit User Guide

ID 739942
Date 8/07/2023
Public
Document Table of Contents

4.3. Control On-Board Clock through Clock Controller GUI

The Clock Controller GUI can change the on-board programmable PLLs to a large range of customized frequency. The instructions to run Clock Controller GUI are stated in the Run BTS GUI section. You can also start it using the BTS GUI icon “Clock”.

The clock controller communicates with the system Intel® MAX® 10 device through a 10-pin JTAG header J3 or Micro-USB connector J10. Then, system Intel® MAX® 10 controls these programmable clock parts through a 2-wire I2C bus.

Note: You cannot run the stand-alone Clock Controller GUI application when the BTS or Power Monitor GUI is running at the same time.
Figure 19. ZL30733

The output frequency of ZL30733 is from 0.5 Hz to 750 MHz. It can generate up to 10 differential outputs with a total of 5 output frequency families. The following sections describe the Clock Controller buttons.

Read

Reads the current frequency setting for the oscillator associated with the active tab.

Set

Sets the programmable oscillator frequency for the selected clock to the value in the OUTx output controls for ZL30733. 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.

Import

ZL30733 has a multiple time writable non-volatile memory (NVM). You can generate the register list with the following format:

  • Register Write Command Line: X ,<register_address> , <data_bytes>— <register_address> and <data_bytes>, whose prefix must be “0x” are in hexadecimal
  • Wait Command Line: W , <time_microseconds>

Import it into ZL30733 to update the settings of the RAM. Register changes are volatile after power cycling. For more details, refer to ZL30733 on the Microchip website.