JESD204B IP Core Design Example User Guide

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ID 683094
Date 11/06/2017
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Document Table of Contents
Document Table of Contents x
1. JESD204B IP Core Design Example User Guide
1. JESD204B IP Core Design Example User Guide x
1.1. JESD204B Design Example Quick Start Guide 1.2. Supported Configurations 1.3. Generic Design Example 1.4. Presets 1.5. Selecting and Generating the Design Example 1.6. Design Example with RTL State Machine Control Unit 1.7. Design Example with Nios II Processor Control Unit 1.8. JESD204B IP Core Design Example Document Archives 1.9. JESD204B IP Core Design Example User Guide Document Revision History
1.1. JESD204B Design Example Quick Start Guide x
1.1.1. Directory Structure 1.1.2. Generating the Design 1.1.3. Compiling and Simulating the Design 1.1.4. Compiling and Testing the Design
1.1.2. Generating the Design x
1.1.2.1. Procedure 1.1.2.2. Design Example Parameters
1.1.3. Compiling and Simulating the Design x
1.1.3.1. Procedure
1.6. Design Example with RTL State Machine Control Unit x
1.6.1. Design Example Components 1.6.2. System Parameters 1.6.3. System Interface Signals 1.6.4. Example Feature: Dynamic Reconfiguration 1.6.5. Generating and Simulating the Design Example 1.6.6. Generating the Design Example For Compilation 1.6.7. Compiling the JESD204B IP Core Design Example
1.6.1. Design Example Components x
1.6.1.1. PLL 1.6.1.2. PLL Reconfiguration 1.6.1.3. Transceiver Reconfiguration Controller 1.6.1.4. Transceiver Reset Controller 1.6.1.5. Pattern Generator 1.6.1.6. Pattern Checker 1.6.1.7. Transport Layer 1.6.1.8. Serial Port Interface (SPI) 1.6.1.9. Control Unit
1.6.1.5. Pattern Generator x
1.6.1.5.1. Parallel PRBS Generator 1.6.1.5.2. Alternate Checkerboard Generator 1.6.1.5.3. Ramp Wave Generator
1.6.1.6. Pattern Checker x
1.6.1.6.1. Parallel PRBS Checker 1.6.1.6.2. Alternate Checkerboard Checker 1.6.1.6.3. Ramp Wave Checker
1.6.1.7. Transport Layer x
1.6.1.7.1. Supported System Configuration 1.6.1.7.2. Data Bit and Content Mapping Scheme 1.6.1.7.3. TX Path 1.6.1.7.4. RX Path
1.6.1.9. Control Unit x
1.6.1.9.1. Memory Block (ROM) 1.6.1.9.2. Finite State Machine (FSM)
1.6.2. System Parameters x
1.6.2.1. Run-Time Reconfiguration
1.6.4. Example Feature: Dynamic Reconfiguration x
1.6.4.1. Dynamic Reconfiguration Operation 1.6.4.2. MIF ROM
1.6.5. Generating and Simulating the Design Example x
1.6.5.1. Generating the Design Example Simulation Model 1.6.5.2. Simulating the JESD204B IP Core Design Example
1.7. Design Example with Nios II Processor Control Unit x
1.7.1. Design Example Components 1.7.2. System Clocking 1.7.3. Nios II Processor Design Example Files 1.7.4. Nios II Processor Design Example System Parameters 1.7.5. Nios II Processor Design Example System Interface Signals 1.7.6. Compiling the Design Example for Synthesis 1.7.7. Implementing the Design on the Development Kit 1.7.8. Running the Software Control Flow 1.7.9. Customizing the Design Example
1.7.1. Design Example Components x
1.7.1.1. Qsys System Component 1.7.1.2. Transport Layer 1.7.1.3. Test Pattern Generator 1.7.1.4. Test Pattern Checker
1.7.1.1. Qsys System Component x
1.7.1.1.1. JESD204B Subsystem in Qsys 1.7.1.1.2. Nios II Subsystem in Qsys 1.7.1.1.3. Core PLL 1.7.1.1.4. PLL Reconfiguration Controller 1.7.1.1.5. SPI Master
1.7.7. Implementing the Design on the Development Kit x
1.7.7.1. Pin Assignments 1.7.7.2. Hardware Setup 1.7.7.3. Programming the Device
1.7.8. Running the Software Control Flow x
1.7.8.1. Executing the Software C Code 1.7.8.2. Software Parameters 1.7.8.3. Software Interrupt Service Routines (ISR) 1.7.8.4. Software Functions Description
1.7.8.4. Software Functions Description x
1.7.8.4.1. Functions in main.c Source File 1.7.8.4.2. Custom Peripheral Access Macros in macros.c Source File
1.7.9. Customizing the Design Example x
1.7.9.1. Modifying the JESD204B IP Core Parameters Post-Generation 1.7.9.2. Changing the Data Rate or Reference Clock Frequency 1.7.9.3. Implementing a Multi-Link Design
1.7.9.3. Implementing a Multi-Link Design x
1.7.9.3.1. Editing the Qsys Project 1.7.9.3.2. Editing the Top Level HDL File 1.7.9.3.3. Editing the Software C Code
1. JESD204B IP Core Design Example User Guide

1.7.4. Nios II Processor Design Example System Parameters

The top level HDL file (jesd204b_ed.sv) includes system parameters that define the configuration of the example design as a whole. You can change the values in the HDL file after generation to customize to your desired configuration but the values must fall within the supported value ranges.

Table 42.  System Parameter
Parameter Value 19 Description
LINK 1, 2 Number of JESD204B link. One link represent one JESD204B instance.
L 1, 2, 4, 8 Number of lanes per converter device.
M 1, 2, 4, 8 Number of converters per device.
F 1, 2, 4, 8 Number of octets per frame.
S 1, 2 Number of transmitted samples per converter per frame.
N 12–16 Number of conversion bits per converter.
N' 16 Number of transmitted bits per sample.
CS 0–3 Number of JESD204B control bits per conversion sample.
F1_FRAMECLK_DIV 1, 4 The divider ratio for frame_clk when F = 1 (refer to Core PLL section.
F2_FRAMECLK_DIV 1, 2 The divider ratio for frame_clk when F = 2 (refer to Core PLL section..
POLYNOMIAL_LENGTH 7, 9, 15, 23, 31 Defines the polynomial length for the PRBS pattern generator and checker, which is also the equivalent number of stages for the shift register.
  • If PRBS-7 is required, set this parameter to 7.
  • If PRBS-9 is required, set this parameter to 9.
  • If PRBS-15 is required, set this parameter to 15.
  • If PRBS-23 is required, set this parameter to 23.
  • If PRBS-31 is required, set this parameter to 31.
This parameter value must not be larger than N, which is the output data width of the PRBS pattern generator or converter resolution. If an N of 12-14 is required, PRBS-7 and PRBS-9 are the only feasible options. If an N of 15-16 is required, PRBS-7, PRBS-9, and PRBS-15 are the only feasible options.
FEEDBACK_TAP 6, 5, 14, 18, 28 Defines the feedback tap for the PRBS pattern generator and checker. This is an intermediate stage that is XOR-ed with the last stage to generate to next PRBS bit.
  • If PRBS-7 is required, set this parameter to 6.
  • If PRBS-9 is required, set this parameter to 5.
  • If PRBS-15 is required, set this parameter to 14.
  • If PRBS-23 is required, set this parameter to 18.
  • If PRBS-31 is required, set this parameter to 28.
19 Values supported or demonstrated by this design example.
Level Two Title