Writes to memory over AXI, backdoor memory readback and verify. More...

Inheritance diagram for axi_sequential_writes_seq:

Collaboration diagram for axi_sequential_writes_seq:

Public Member Functions
	uvm_object_utils (axi_sequential_writes_seq) new(string name

task	body ()
	Does all the work. More...

	uvm_object_utils (axi_seq) const int clearmemory=0

	new (string name="axi_seq")
	Constructor. More...

void	set_transaction_count (int count)
	How many transactions? More...

bit	compare_items (ref axi_seq_item write_item, ref axi_seq_item read_item)
	Compares the write-item with the corresponding read_item. More...

Public Attributes
const int	window_size = 0x1_0000

int	xfers_to_send = 1

bit	valid []

bit< 2:0 >	max_burst_size

int	xfers_done =0

memory	m_memory

Detailed Description

Writes to memory over AXI, backdoor memory readback and verify.

miscompares are flagged.

Definition at line 33 of file axi_sequential_writes_seq.svh.

Member Function Documentation

task axi_sequential_writes_seq::body ( )

Does all the work.

Creates constrained random AXI write packet
Sends it
Backdoor read of memory to verify correctly written

Definition at line 59 of file axi_sequential_writes_seq.svh.

References ADDR_WIDTH, axi_seq_item::convert2string(), e_WRITE, ID_WIDTH, axi_seq::m_memory, memory::seq_item_check(), axi_seq::valid, axi_seq_item::valid, axi_seq::window_size, memory::write(), and axi_seq::xfers_to_send.

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bit axi_seq::compare_items	(	ref axi_seq_item	write_item,
		ref axi_seq_item	read_item
	)

inherited

Compares the write-item with the corresponding read_item.

THis isn't the same as a do_compare() method in the axi_seq_item because the readback is depenent on which burst_type Although it could probably exist as aseperate method in the seqitem.

Parameters

write_item	- the original item
read_item	- the item after memory readback

Returns: True if no miscompares, false if miscompares

........................

Definition at line 115 of file axi_seq.svh.

References e_FIXED, e_INCR, e_WRAP, and axi_seq::max_burst_size.

axi_seq::new ( string name = "axi_seq" )

inherited

Constructor.

Doesn't actually do anything except call parent constructor

Definition at line 62 of file axi_seq.svh.

References axi_seq::max_burst_size.

void axi_seq::set_transaction_count ( int count )

inherited

How many transactions?

This method sets how many transactions to send (Write Address, Write Data, Write Response) is one traction (Read Address, Read Data) is one transaction

Parameters

count - how many transactions to send

Definition at line 92 of file axi_seq.svh.

References axi_seq::xfers_to_send.

Referenced by axi_base_test::build_phase().

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