cocotbext-jtag 0.0.4

jtag modules for cocotb

JTAG interface modules for Cocotb

GitHub repository: https://github.com/daxzio/cocotbext-jtag

Introduction

JTAG simulation models for cocotb.

Installation

Installation from pip (release version, stable):

$ pip install cocotbext-jtag

Installation from git (latest development version, potentially unstable):

$ pip install https://github.com/daxzio/cocotbext-jtag/archive/main.zip

Installation for active development:

$ git clone https://github.com/daxzio/cocotbext-jtag
$ pip install -e cocotbext-jtag

Documentation and usage examples

See the tests directory for complete testbenches using these modules.

JTAG Driver

The JTAGDriver classe implement a JTAG driver and is capable of generating read and write operations against JTAG devices, either singularlly or in a chain.
To use these modules, import the one you need and connect it to the DUT:

from cocotbext.jtag import JTAGDriver, JTAGBus

bus = JTAGBus(dut)
jtag_driver = JTAGDriver(bus)

The first argument to the constructor accepts an JTAGBus object. These objects are containers for the interface signals and include class methods to automate connections.