Subversion Repositories wbuart32

################################################################################
##
## Filename:    Makefile
##
## Project:     wbuart32, a full featured UART with simulator
##
## Purpose:     To direct the Verilator build of the Verilog portion of the
##              bench test.  The result is C++ code (built by Verilator), that
##      is then built (herein) into a library.
##
## ALTERNATE_PURPOSE:
##      All of the Verilog files within this directory may be made top level
##      files in their own right for the purpose of testing the UART capability
##      of your board.  Should you wish to test these as toplevel files, you
##      will need to remove the i_setup from the input, and set it to something
##      like:
##              wire    [29:0]  i_setup;
##
##              // If we have a 100MHz clock, then we can set up for a 115,200
##              // baud clock by setting i_setup to (100MHz / 115200) ~= 868.
##              // The upper bits of this number also set the protocol to
##              // one stop bit, no parity, and 8 data  bits.
##              assign  i_setup = 30'd868;      // 115,200 Baud 8N1
##
##      Using this purpose, the UART ports of a new piece of hardware may be
##      proven.  To do this,
##              1. get BLINKY working first--to prove that the clock works like
##                      you think it does.  Then, once BLINKY is running,
##              2. get helloworld working.  This requires only the clock and
##                      the output UART pin to work.
##              (Aside) 3. Once helloworld works, you should be able to get
##                      speechfifo to work with no further hassles.
##              4. After helloworld works, switch to getting linetest running on
##                      your hardware.  This will prove that you have not only
##                      the clock and output UART pin working, but that you also
##                      have the input UART pin working as well.
##
## Targets:     The default target of this makefile, all, builds the target
##              test, which includes the linetest Verilator library, the
##      helloworld Verilator library, and the speechfifo Verilator library--all
##      necessary for bench testing using the C++ files in bench/cpp.
##
## Creator:     Dan Gisselquist, Ph.D.
##              Gisselquist Technology, LLC
##
################################################################################
##
## Copyright (C) 2015-2016, Gisselquist Technology, LLC
##
## This program is free software (firmware): you can redistribute it and/or
## modify it under the terms of  the GNU General Public License as published
## by the Free Software Foundation, either version 3 of the License, or (at
## your option) any later version.
##
## This program is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
## FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
## for more details.
##
## You should have received a copy of the GNU General Public License along
## with this program.  (It's in the $(ROOT)/doc directory.  Run make with no
## target there if the PDF file isn't present.)  If not, see
## <http://www.gnu.org/licenses/> for a copy.
##
## License:     GPL, v3, as defined and found on www.gnu.org,
##              http://www.gnu.org/licenses/gpl.html
##
################################################################################
##
##
.PHONY: all
all:    test tags
YYMMDD=`date +%Y%m%d`
CXX   := g++
FBDIR := .
VDIRFB:= $(FBDIR)/obj_dir
RTLDR := ../../rtl
VERILATOR := verilator
VFLAGS := -Wall --MMD --trace -y $(RTLDR) -cc

.PHONY: test testline testhello speechfifo
test: testline testhello speechfifo
testline:   $(VDIRFB)/Vlinetest__ALL.a
testhello:  $(VDIRFB)/Vhelloworld__ALL.a
speechfifo: $(VDIRFB)/Vspeechfifo__ALL.a

$(VDIRFB)/Vlinetest__ALL.a:   $(VDIRFB)/Vlinetest.cpp
$(VDIRFB)/Vhelloworld__ALL.a: $(VDIRFB)/Vhelloworld.cpp
$(VDIRFB)/Vspeechfifo__ALL.a: $(VDIRFB)/Vspeechfifo.cpp

$(VDIRFB)/V%.mk:  $(VDIRFB)/%.h
$(VDIRFB)/V%.h:   $(VDIRFB)/%.cpp
$(VDIRFB)/V%.cpp: $(FBDIR)/%.v
        $(VERILATOR) $(VFLAGS) $*.v

$(VDIRFB)/V%__ALL.a: $(VDIRFB)/V%.cpp
        cd $(VDIRFB); make -f V$*.mk

tags: $(wildcard *.v) $(wildcard $(RTLDR)/*.v)
        ctags *.v $(RTLDR)/*.v

.PHONY: clean
clean:
        rm -rf tags $(VDIRFB)/

DEPS := $(wildcard $(VDIRFB)/*.d)

ifneq ($(MAKECMDGOALS),clean)
ifneq ($(DEPS),)
include $(DEPS)
endif
endif