Agilex™ 5 FPGA E-Series 065B Premium Development Kit User Guide

ID 814550
Date 8/05/2024
Public
Document Table of Contents

4.3.5.2.1. The DDR4 COMP Tab

Figure 38. The DDR4 COMP Test Tab

The following sections describe controls on this tab.

  • Start: Initiates DDR4 memory transaction performance analysis.
  • Stop: Terminates transaction performance analysis.
  • Test Control
    • Test Mode: Infinite Read and Write (default), Single Read and Write.
    • Test times: Number of times that write and read DDR once.
    • Detected Errors: Displays the number of data errors detected in the hardware.
    • Inserted Errors: Displays the number of errors inserted into the transaction stream.
    • Insert: Insert a one-word error into the transaction stream each time you click the button. Insert error is only enabled during transaction performance analysis.
    • Clear: Resets the Detected Errors counter and Inserted Errors counter to zeros.
  • Performance Indicators
    These controls display current transaction performance analysis information collected since you last clicked Start:
    • Write, Read and Total performance bars: Show the percentage of maximum theoretical data rate that the requested transactions are able to achieve.
    • Write (MBps), Read (MBps) and Total(Mbps): Show the number of bytes analyzed per second.
Figure 39. The DDR4 COMP Test Parameter Tab
  • Test Size: You can choose the size of the memory to test. The available options are 64 KB, 256 KB, 1 MB, 4MB, 16 MB, 64 MB, 256 MB, 1 GB, 4 GB, 8 GB (default).
  • Offset (Hex): You can define the memory start address to test.
  • Test Pattern: PRBS (default), User Defined Constant, Walking '0', Walking '1'.