Arria V Avalon-ST Interface for PCIe Solutions User Guide

ID 683733
Date 6/03/2020
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15.6.10.6. shmem_chk_ok Function

The shmem_chk_ok function checks a block of BFM shared memory against a specified data pattern.

Location

altpcietb_bfm_driver_rp.v

Syntax

result:= shmem_chk_ok(addr, mode, leng, init, display_error)

Arguments

addr

BFM shared memory starting address for checking data.

mode

Data pattern used for checking the data. Should be one of the constants defined in section “Shared Memory Constants” on page 18–35.

leng

Length, in bytes, of data to check.

init

This argument is reg [63:0].The necessary least significant bits are used for the data patterns that are smaller than 64-bits.

display_error

When set to 1, this argument displays the data failing comparison on the simulator standard output.

Return

Result

Result is 1-bit.

  • 1’b1 — Data patterns compared successfully
  • 1’b0 — Data patterns did not compare successfully