AN 661: Implementing Fractional PLL Reconfiguration with Altera PLL and Altera PLL Reconfig IP Cores

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ID 683640
Date 10/14/2019
Public
Document Table of Contents
Document Table of Contents x
1. Implementing Fractional PLL Reconfiguration with Altera PLL and Altera PLL Reconfig IP Cores
1. Implementing Fractional PLL Reconfiguration with Altera PLL and Altera PLL Reconfig IP Cores x
1.1. Fractional PLL Reconfiguration in 28-nm Devices 1.2. Fractional PLL Dynamic Phase Shifting in the Intel® Quartus® Prime Software 1.3. Design Considerations 1.4. Using the Design Examples 1.5. Tutorial Walkthrough 1.6. Document Revision History for AN 661: Implementing Fractional PLL Reconfiguration with Altera PLL and Altera PLL Reconfig IP Cores
1.1. Fractional PLL Reconfiguration in 28-nm Devices x
1.1.1. Implementing Fractional PLL Reconfiguration on 28-nm Devices Using the Intel® Quartus® Prime Software
1.1.1. Implementing Fractional PLL Reconfiguration on 28-nm Devices Using the Intel® Quartus® Prime Software x
1.1.1.1. Connectivity between Altera PLL and Altera PLL Reconfig IP Cores 1.1.1.2. Connecting Altera PLL and Altera PLL Reconfig IP Cores 1.1.1.3. Avalon-MM Signals in Altera PLL Reconfig IP Core 1.1.1.4. Registers and Counters Settings 1.1.1.5. Reconfiguring Fractional PLL Settings with Avalon-MM Interface 1.1.1.6. .mif Streaming Reconfiguration
1.1.1.4. Registers and Counters Settings x
1.1.1.4.1. Fractional PLL Dynamic Reconfiguration Registers and Settings 1.1.1.4.2. Counter Address and Bit Setting During Read Operation 1.1.1.4.3. Dynamic Phase Shift Counter and cnt_select (Dynamic_Phase_Shift[20:16]) Bit Setting
1.1.1.5. Reconfiguring Fractional PLL Settings with Avalon-MM Interface x
1.1.1.5.1. Waveform Example for Dynamic Reconfiguration with Avalon-MM Interface
1.1.1.6. .mif Streaming Reconfiguration x
1.1.1.6.1. Stitching Two .mif Files Generated by the Intel® Quartus® Prime Software 1.1.1.6.2. .mif Streaming Reconfiguration with Altera PLL Reconfig IP Core 1.1.1.6.3. .mif File Format 1.1.1.6.4. .mif Streaming Reconfiguration Operation Codes
1.2. Fractional PLL Dynamic Phase Shifting in the Intel® Quartus® Prime Software x
1.2.1. Performing Dynamic Phase Shifting with Altera PLL IP Core 1.2.2. Performing Dynamic Phase Shifting with Altera PLL Reconfig IP Core
1.2.1. Performing Dynamic Phase Shifting with Altera PLL IP Core x
1.2.1.1. Waveform Example for Dynamic Phase Shift with Altera PLL IP Core 1.2.1.2. Dynamic Phase Shift Signals in Altera PLL IP Core 1.2.1.3. Logical Counter Bit Setting
1.2.2. Performing Dynamic Phase Shifting with Altera PLL Reconfig IP Core x
1.2.2.1. Waveform Example for Dynamic Phase Shift with Altera PLL Reconfig IP Core
1.4. Using the Design Examples x
1.4.1. Software Requirement 1.4.2. Design Example 1: PLL Reconfiguration with Altera PLL Reconfig IP Core to Reconfigure M, N, and C Counters 1.4.3. Design Example 2: PLL Reconfiguration with Altera PLL Reconfig IP Core to Perform Dynamic Phase Shift 1.4.4. Design Example 3: PLL Reconfiguration with Altera PLL Reconfig IP Core using Qsys Design Flow 1.4.5. Design Example 4: Dynamic Phase Shift with Altera PLL IP Core 1.4.6. Design Example 5: .mif Streaming Reconfiguration
1.4.4. Design Example 3: PLL Reconfiguration with Altera PLL Reconfig IP Core using Qsys Design Flow x
1.4.4.1. Qsys System and Components 1.4.4.2. Main Menu Commands in Qsys 1.4.4.3. Submenu Commands in Qsys
1.5. Tutorial Walkthrough x
1.5.1. Creating a New Intel® Quartus® Prime Project 1.5.2. Creating the Qsys System 1.5.3. Creating the Top-Level Design File 1.5.4. Incorporating the Nios II SBT for Eclipse 1.5.5. Verifying Design on Hardware
1.5.4. Incorporating the Nios II SBT for Eclipse x
1.5.4.1. Adding Test Code to the Nios II SBT for Eclipse 1.5.4.2. Setting Up the Nios II Project Settings
1.5.5. Verifying Design on Hardware x
1.5.5.1. Compiling the Project 1.5.5.2. Downloading the Object File 1.5.5.3. Verifying Design with the Nios II SBT for Eclipse
1. Implementing Fractional PLL Reconfiguration with Altera PLL and Altera PLL Reconfig IP Cores

1.4.4. Design Example 3: PLL Reconfiguration with Altera PLL Reconfig IP Core using Qsys Design Flow

The design example for fPLL reconfiguration uses the Qsys design flow, targeting the 5SGXEA7 device. The fPLL synthesizes four output clock of 106 MHz with 0 ps, 168 ps, 336 ps, and 505 ps on C0, C1, C5, and C10 output respectively. The input frequency of the fPLL is 50 MHz.

To run the test with the design example, perform these steps (enter submenu):

  1. Download and restore the pll_reconfig_qsys.qar file.
  2. Change the pin assignment and I/O standard of the design example to match your hardware.
  3. Regenerate the Qsys system in the design example.
  4. Recompile your design and ensure your design does not contain any timing violation after recompilation.
  5. Open the .stp file and download the .sof file.
  6. Launch the Nios® II Software Build Tools (SBT) for Eclipse to set up the Nios® II project and compile the test program.
  7. Download the Executable and Linking Format File (.elf) to run the example test.

Section Content
Qsys System and Components
Main Menu Commands in Qsys
Submenu Commands in Qsys

Level Two Title