Altera Arria V GT FPGA Manual do Utilizador descarregar pdf (Página 33)

Chapter 6: Board Test System 6–11

Using the Board Test System

November 2012 Altera Corporation Arria V GT FPGA Development Kit

User Guide

■ LF —lowest frequency divide-by-40 data pattern.

1 Settings HF1, HF2, HF3, LF are for transmit observation only.

Error Control

This control displays data errors detected during analysis and allows you to insert

errors:

■ Detected errors—Displays the number of data errors detected in the hardware.

■ Inserted errors—Displays the number of errors inserted into the transmit data

stream.

■ Insert Error—Inserts a one-word error into the transmit data stream each time you

click the button. Insert Error is only enabled during transaction performance

analysis.

■ Clear—Resets the Detected errors and Inserted errors counters to zeros.

■ Word error rate—Detected word errors/total received words.

Start

The Start control initiates transaction performance analysis.

Stop

The Stop control terminates transaction performance analysis.

Loopback

These controls display current transaction performance analysis information collected

since you last clicked Start:

■ TX and RX performance bars—Show the percentage of maximum theoretical data

rate that the requested transactions are able to achieve.

■ Tx (MBps) and Rx (MBps)—Show the number of bytes of data analyzed per

second.

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Altera Arria V GT FPGA Manual do Utilizador Página 33