INTRODUCTION:
This repo contains the UVM environment for APB based UART. A complete example of an APB UART RTL design verified using a UVM-based testbench running on Verilator 5.040. This repository includes the RTL, Verilator-compliant UVM testbench, custom UVM library, and automation scripts for building, running, and generating waveform and coverage outputs. Ideal for engineers looking to learn or implement open-source UVM verification workflows with Verilator.

AVAILABLE TEST CASES:

1. apbuart_config_test
2. apbuart_data_compare_test
3. apbuart_parity_error_test
4. apbuart_frame_error_test
5. apbuart_free_error_test
6. apbuart_rec_reg_test

HOW TO USE MAKEFILE:
Design files are in design folder, uvm_lib directory contains custom UVM library and UVM testbench components are in uvm_tb folder. Now go to the sim folder where you'll find a Makefile. Now go to the sim folder where you'll find a Makefile.

This Makefile has following targets:
1. all_tests: to run all the available test cases on the compiled design
2. compile: to compile all the design and tb files
3. sim: to run any specific test e.g $ make sim TEST=apbuart_frame_error_test
4. cov: to generate coverage report
5. clean: to clean the generated simulation, database and log files
6. run: to clean, compile and run any specific test e.g $ make run TEST=apbuart_frame_error_test