Execute_write_data_burst(), Axi3 example, Axi4 example – Altera Mentor Verification IP Altera Edition AMBA AXI3/4TM User Manual

Page 71: Tasks simultaneously, otherwise, Will be called after

Advertising
background image

SystemVerilog AXI3 and AXI4 Master BFMs

execute_write_data_burst()

Mentor VIP AE AXI3/4 User Guide, V10.2b

53

September 2013

execute_write_data_burst()

This task executes a write data burst previously created by the

create_write_transaction()

task.

This burst can be blocking (default) or nonblocking, defined by the transaction operation_mode
field.

If the transaction gen_write_strobes field is set, this task automatically corrects any previously
set write_strobes field array elements. If the gen_write_strobes field is not set then any
previously assigned write_strobes field array elements will be passed through onto the WSTRB
protocol signals, which can result in a protocol violation if the WSTRB signals are not correctly
set. Refer to

“Automatic Correction of Byte Lane Strobes”

on page 197 for more details.

It calls the

execute_write_data_phase()

task for each beat of the data burst, with the length of

the burst defined by the transaction burst_length field.

AXI3 Example

// Declare a local variable to hold the transaction record.
axi_transaction write_trans;

// Create a write transaction with start address of 0 and assign
// it to the local write_trans variable.
write_trans = bfm.create_write_transaction(0);

....

// Execute the write_trans transaction.
bfm.execute_write_data_burst(write_trans);

AXI4 Example

// Declare a local variable to hold the transaction record.
axi4_transaction write_trans;

// Create a write transaction with start address of 0 and assign
// it to the local write_trans variable.
write_trans = bfm.create_write_transaction(0);

....

// Execute the write_trans transaction.
bfm.execute_write_data_burst(write_trans);

Prototype

// * = axi | axi4
task automatic execute_write_data_burst
(

*_transaction trans

);

Arguments

trans

The *_transaction record.

Returns

None

Advertising