Subversion Repositories wbuart32

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##

## 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

##  for a copy.

##

## License:     GPL, v3, as defined and found on www.gnu.org,

##              http://www.gnu.org/licenses/gpl.html

##

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##

##

.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