gr_uvm_apb_agent

UVM Reg Agent used with the gen_regs flow

Note

I am not a DV engineer. There are things that you may see here that you disagree with, and that's ok. I use this agent for designer testing (and to some extent signoff testing). Some things done here may be against industry norms. I will say setups similar to this (and by many counts worse than this) have been used to tapeout some of the chips you know and love.

gr_reg_pkg.sv

Main Package to pull in for registers. Include this repo's base dir and compile this package for simulation

gr_reg_base_seq.sv

Base sequence for register sequences. Extend this so that the sequence will automatically grab the reg_model from the config_db upon creation. When extending from this sequence, a user can easily access the registers with the following:

get_reg("MY_REG_REG1");
set_bf("BF1"        , 0);
set_reg();

apb/

All APB related components.

ahb/

All AHB related components.

Examples

Each of the examples uses the same base registers. The difference is obviously that the interface to the registers is different (APB/AHB). For this reason, there are two version of the register Verilog file and uvm_reg_block. The create_reg_model.csh script is used to generate this.

example_apb

An example test environment using the gr_apb_env for register accesses. Built in UVM test sequences are used. Good starting point for new test environments using an APB interface.

example_ahb

An example test environment using the gr_ahb_env for register accesses. Built in UVM test sequences are used. Good starting point for new test environments using an AHB interface.

Dir Structure

|-- README.rst
|-- ahb
|   |-- gr_ahb_agent.sv
|   |-- gr_ahb_driver.sv
|   |-- gr_ahb_env.sv
|   |-- gr_ahb_if.sv
|   |-- gr_ahb_monitor.sv
|   |-- gr_ahb_reg_adapter.sv
|   |-- gr_ahb_sequencer.sv
|   `-- gr_ahb_transfer.sv
|-- apb
|   |-- gr_apb_agent.sv
|   |-- gr_apb_driver.sv
|   |-- gr_apb_env.sv
|   |-- gr_apb_if.sv
|   |-- gr_apb_monitor.sv
|   |-- gr_apb_reg_adapter.sv
|   |-- gr_apb_sequencer.sv
|   `-- gr_apb_transfer.sv
|-- dut
|   |-- create_reg_model.csh
|   |-- my_reg_model.sv
|   |-- my_reg_model.svh
|   |-- my_reg_model_ahb.sv
|   |-- my_reg_model_ahb.svh
|   |-- my_test_ahb_regs_top.v
|   |-- my_test_regs_top.v
|   |-- regs.blk
|   `-- regs.txt
|-- example_ahb
|   |-- run
|   |   |-- input.tcl
|   |   |-- simulate.csh
|   |-- sv
|   |   |-- ahb_agent_pkg.sv
|   |   `-- test_seq.sv
|   |-- tb_top
|   |   `-- ahb_agent_tb_top.sv
|   `-- tests
|       |-- ahb_agent_base_test.sv
|       |-- ahb_agent_bit_bash_test.sv
|       |-- ahb_agent_hw_reset_test.sv
|       `-- ahb_agent_test_pkg.sv
|-- example_apb
|   |-- run
|   |   |-- input.tcl
|   |   |-- simulate.csh
|   |-- sv
|   |   |-- apb_agent_pkg.sv
|   |   `-- test_seq.sv
|   |-- tb_top
|   |   `-- apb_agent_tb_top.sv
|   `-- tests
|       |-- apb_agent_base_test.sv
|       |-- apb_agent_bit_bash_test.sv
|       |-- apb_agent_hw_reset_test.sv
|       `-- apb_agent_test_pkg.sv
|-- gr_reg_base_seq.sv
`-- gr_reg_pkg.sv