axi4stream_mst_driver

AXI4STREAM Master Driver Class. The driver receives transactions from the user environment and drives stream interface. It returns a completed transaction when the transaction is accepted when the transaction's driver_return_item_policy is set to XIL_AXI4STREAM_AT_ACCEPT_RETURN.

Information
class member

axi4stream_vif_proxy `XIL_AXI4STREAM_PARAM_ORDER  vif_proxy; AXI4STREAM VIF Proxy Class.

xil_seq_item_pull_port #(axi4stream_transaction,axi4stream_transaction) seq_item_port; provides method to send transaction to axi4stream_mst_driver.

Functions
new
function new(
input string name "unnamed_axi4stream_mst_driver"
);

Constructor to create a new axi4stream master driver, ~name~ is the name of the instance.

set_vif
function void set_vif(
axi4stream_vif_proxy `XIL_AXI4STREAM_PARAM_ORDER vif
);

Assigns the virtual interface of the driver.

set_forward_progress_timeout_value
function void set_forward_progress_timeout_value(
input xil_axi4stream_uint value
);

Sets the number of cycles that the driver will wait until it will flag a watch dog error.  Setting this to a very large value will cause a hung simulation to continue for a longer time.  Setting this to a very small number may not allow the slave to respond.

get_forward_progress_timeout_value
function xil_axi4stream_uint get_forward_progress_timeout_value();

Returns the current value of the forward_progress_timeout_value.

is_driver_idle
function xil_axi4stream_boolean_t is_driver_idle();

When the driver is actively processing a transaction this function will return FALSE.

run_phase
task run_phase();

Start control processes for operation of axi4stream_mst_driver.

stop_phase
virtual task stop_phase();

Stops all control processes of of axi4stream_mst_driver.

send
task send(
input axi4stream_transaction 
);

Send axi4stream transaction object to the axi4stream_mst_driver.

create_transaction
virtual function axi4stream_transaction create_transaction (
string name "unnamed_transaction"
);

Returns an axi4stream transaction that has been "newed".