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May 2011 Altera Corporation Avalon Verification IP Suite User Guide

1. Clock Source BFM

The Avalon Verification IP Suite includes a Clock Source BFM that you can use to

generate a clock signal for your testbench.

1 The Clock Source BFM is only supported in Qsys.

Parameters

Table 1–1 lists the parameter settings for the clock signal.

Application Program Interface

This section describes the API for the Clock Source BFM.

clock_start()

clock_stop()

get_run_state()

Table 1–1. Clock Source BFM Parameter Settings

Option Default Value Legal Values Description

Clock rate 10 — Specifies the clock rate in MHz.

Prototype:

clock_start

().

Arguments: None.

Returns:

void

Description: Turns on the clock.

Prototype:

clock_stop()

Arguments: None.

Returns:

void

Description: Turns off the clock.

Prototype:

get_run_state()

Arguments: None.

Returns:

bit

Description: Returns the state of the clock source; 1=running, 0=stop.

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Altera Avalon Verification IP Suite Manuale Utente Pagina 18