Files
taxi/tb/lfsr/taxi_lfsr/Makefile
Alex Forencich 8ee1f5cd18 lfsr: Add parametrizable LFSR module and testbench
Signed-off-by: Alex Forencich <alex@alexforencich.com>
2025-02-04 15:39:33 -08:00

51 lines
1.4 KiB
Makefile

# SPDX-License-Identifier: CERN-OHL-S-2.0
#
# Copyright (c) 2023-2025 FPGA Ninja, LLC
#
# Authors:
# - Alex Forencich
TOPLEVEL_LANG = verilog
SIM ?= verilator
WAVES ?= 0
COCOTB_HDL_TIMEUNIT = 1ns
COCOTB_HDL_TIMEPRECISION = 1ps
DUT = taxi_lfsr
COCOTB_TEST_MODULES = test_$(DUT)
COCOTB_TOPLEVEL = $(DUT)
MODULE = $(COCOTB_TEST_MODULES)
TOPLEVEL = $(COCOTB_TOPLEVEL)
VERILOG_SOURCES += ../../../rtl/lfsr/$(DUT).sv
# handle file list files
process_f_file = $(call process_f_files,$(addprefix $(dir $1),$(shell cat $1)))
process_f_files = $(foreach f,$1,$(if $(filter %.f,$f),$(call process_f_file,$f),$f))
uniq_base = $(if $1,$(call uniq_base,$(foreach f,$1,$(if $(filter-out $(notdir $(lastword $1)),$(notdir $f)),$f,))) $(lastword $1))
VERILOG_SOURCES := $(call uniq_base,$(call process_f_files,$(VERILOG_SOURCES)))
# module parameters
export PARAM_LFSR_W ?= 32
export PARAM_LFSR_POLY ?= "32'h4c11db7"
export PARAM_LFSR_GALOIS ?= "1'b1"
export PARAM_LFSR_FEED_FORWARD ?= "1'b0"
export PARAM_REVERSE ?= "1'b1"
export PARAM_DATA_W ?= 8
ifeq ($(SIM), icarus)
PLUSARGS += -fst
COMPILE_ARGS += $(foreach v,$(filter PARAM_%,$(.VARIABLES)),-P $(COCOTB_TOPLEVEL).$(subst PARAM_,,$(v))=$($(v)))
else ifeq ($(SIM), verilator)
COMPILE_ARGS += $(foreach v,$(filter PARAM_%,$(.VARIABLES)),-G$(subst PARAM_,,$(v))=$($(v)))
ifeq ($(WAVES), 1)
COMPILE_ARGS += --trace-fst
VERILATOR_TRACE = 1
endif
endif
include $(shell cocotb-config --makefiles)/Makefile.sim