avl-axi 0.6.1

Apheleia Verification Library - AMBA AXI verification component.

AVL-AXI - Apheleia Verification Library AMBA AXI Verification Component

AVL-AXI has been developed by experienced, industry professional verification engineers to provide a simple,
extensible verification component for the AMBA AXI Bus
developed in Python and the AVL library.

AVL is built on the CocoTB framework, but aims to combine the best elements of
UVM in a more engineer friendly and efficient way.

CocoTB 2.0

AVL-AXI supports CocoTB2.0 https://docs.cocotb.org/en/development/upgrade-2.0.html.

To upgrade follow the instructions given on the link above.

Protocol Features

For full details see the docs. A few of the cache extensions are not supported in the initial release, but the bus features
including most sidebands are supported.

If you are interested contact [e-mail] to discuss.

Of the advanced features full support of exclusives and atomic operation are provided in the Subordinate memory model.

Parameter Name	Supported
Atomic_Transactions	YES
BURST_Present	YES
Busy_Support	SIDEBAND
CACHE_Present	SIDEBAND
Cache_Line_Size	SIDEBAND
Cache_Stash_Transactions	SIDEBAND
Check_Type	NO
CMO_On_Read	SIDEBAND
CMO_On_Write	SIDEBAND
Coherency_Connection_Signals	NO
Consistent_DECERR	YES
DeAllocation_Transactions	SIDEBAND
Device_Normal_Independence	NO
DVM_Message_Support	NO
DVM_v8	NO
DVM_v8_1	NO
DVM_v8_4	NO
DVM_v9_2	NO
Exclusive_Accesses	YES
Fixed_Burst_Disable	YES
InvalidateHint_Transaction	SIDEBAND
LEN_Present	YES
Loopback_Signals	YES
Max_Transaction_Bytes	YES
MEC_Support	SIDEBAND
MMUFLOW_Present	SIDEBAND
MPAM_Support	SIDEBAND
MTE_Support	NO
Multi_Copy_Atomicity	SIDEBAND
NSAccess_Identifiers	SIDEBAND
Ordered_Write_Observation	YES
PBHA_Support	SIDEBAND
Persist_CMO	SIDEBAND
Poison	SIDEBAND
Prefetch_Transaction	SIDEBAND
PROT_Present	SIDEBAND
QoS_Accept	YES
QOS_Present	SIDEBAND
Read_Data_Chunking	NO
Read_Interleaving_Disabled	YES
REGION_Present	SIDEBAND
Regular_Transactions_Only	YES
RLAST_Present	YES
RME_Support	SIDEBAND
Shareable_Cache_Support	SIDEBAND
Shareable_Transactions	SIDEBAND
SIZE_Present	YES
STASHLPID_Present	SIDEBAND
STASHNID_Present	SIDEBAND
Trace_Signals	SIDEBAND
Unique_ID_Support	YES
UnstashTranslation_Transaction	SIDEBAND
Untranslated_Transactions	SIDEBAND
Wakeup_Signals	YES
WLAST_Present	YES
Write_Plus_CMO	SIDEBAND
WriteDeferrable_Transaction	SIDEBAND
WriteNoSnoopFull_Transaction	SIDEBAND
WriteZero_Transaction	SIDEBAND
WSTRB_Present	SIDEBAND
AXI_Transport	YES
Num_RP	YES
Shared_Credits	YES

Component Features

• Majority of protocol features supported
• Simple RTL interface to interact with HDL and define parameter and configuration options
• Manager sequence, sequencer and driver with easy to control rate limiter and wakeup control
  • Support for pipelined sequence based on control, data or response acknowledge
• Subordinate driver with vanilla, random and memory response patterns (including exclusive and atomic operation support) and rate limiter
• Maximum outstanding transaction and maximum outstanding bytes suppport
• Parallel and independent read and write channels with support for early write data
• Monitor with configurable callbacks for control, data and response phases
• Bandwidth monitor generating bus activity plots over user defined windows during simulation
• Functional coverage including performance measurements
• Searchable trace file generation

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📦 Installation

Using pip

# Standard build
pip install avl-axi

# Development build
pip install avl-axi[dev]

Install from Source

git clone https://github.com/projectapheleia/avl-axi.git
cd avl

# Standard build
pip install .

# Development build
pip install .[dev]

Alternatively if you want to create a virtual environment rather than install globally a script is provided. This will install, with edit privileges to local virtual environment.

This script assumes you have Graphviz and appropriate simulator installed, so all examples and documentation will build out of the box.

git clone https://github.com/projectapheleia/avl-axi.git
cd avl-axi
source avl-axi.sh

📖 Documentation

In order to build the documentation you must have installed the development build.

Build from Source

cd doc
make html
<browser> build/html/index.html

🏃 Examples

In order to run all the examples you must have installed the development build.

To run all examples:

cd examples

# To run
make -j 8 sim

# To clean
make -j 8 clean

To run an individual example:

cd examples/THE EXAMPLE YOU WANT

# To run
make sim

# To clean
make clean

The examples use the CocoTB Makefile and default to Verilator with all waveforms generated. This can be modified using the standard CocoTB build system.

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🧹 Code Style & Linting

This project uses Ruff for linting and formatting.

Check code for issues:

ruff check .

Automatically fix common issues:

ruff check . --fix

📧 Contact

• Email: [e-mail]
• GitHub: projectapheleia