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VHDL API Overview

Access Transaction Record

Mentor Verification IP AE AMBA AXI4-Stream User Guide, V10.3

April 2014

Access Transaction Record

Each BFM API has procedures that can access a complete or partially complete Transaction

Record. The set*() and get*() procedures are used in a test program to set and get information

from the transaction record.

set*()

Example 7-9 shows the master test program calling the set_byte_type() procedure to set the first

byte_type in the transaction.

Example 7-9. Master Test Program set_byte_type() Procedure

-- Define a local variable trans to hold the transaction record.

variable trans: integer;

-- Create a master transaction with 10 transfers.

create_master_transaction(10, trans, bfm_index,

axi4stream_tr_if_0(bfm_index));

-- Set the first byte_type in the transfer.

set_byte_type(AXI4STREAM_DATA_BYTE, 0, trans, bfm_index,

axi4stream_tr_if_0(bfm_index));

In the above example, the bfm_index specifies the actual master BFM.

get*()

Example 7-10 shows the slave test program calling the get_byte_type() procedure to get the first

data byte_type of a transaction.

Example 7-10. Slave Test Program get_byte_type() Procedure

-- Define a local variable trans to hold the transaction record.

variable trans: integer;

-- Define a local variable to hold the transaction byte type

variable byte_type: integer;

-- Create a slave transaction

create_slave_transaction(trans, bfm_index,

axi4stream_tr_if_0(bfm_index));

-- Get the first byte_type of a transaction.

get_byte_type(byte_type, 0, trans, bfm_index,

axi4stream_tr_if_0(bfm_index));

In the above example, the bfm_index specifies the actual slave BFM.

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Altera Mentor Verification IP Altera Edition AMBA AXI4-St Manuale Utente Pagina 83