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############################################################################
# Copyright (C) 2011 by Martin Schmoelzer #
# <martin.schmoelzer@student.tuwien.ac.at> #
# #
# This program is free software; 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 2 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 #
# MERCHANTABILITY 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. If not, see <http://www.gnu.org/licenses/>. #
############################################################################
# Define the name of our tools. Some distributions (e. g. Fedora) prefix
# the SDCC executables, change this accordingly!
PREFIX =
# Small Device C Compiler: http://sdcc.sourceforge.net/
CC = $(PREFIX)-sdcc
# 8051 assembler, part of the SDCC software package.
AS = $(PREFIX)-sdas8051
# SDCC produces quite messy Intel HEX files. This tool is be used to re-format
# those files. It is not required for the firmware download functionality in
# the OpenOCD driver, but the resulting file is smaller.
PACKIHX = $(PREFIX)-packihx
# GNU binutils size. Used to print the size of the IHX file generated by SDCC.
SIZE = size
# Source and header directories.
SRC_DIR = src
INCLUDE_DIR = include
CODE_SIZE = 0x1B00
# Starting address of __xdata variables. Since the OpenULINK firmware does not
# use any of the isochronous interrupts, we can use the isochronous buffer space
# as XDATA memory.
XRAM_LOC = 0x2000
XRAM_SIZE = 0x0800
CFLAGS = --std-sdcc99 --opt-code-size --model-small
LDFLAGS = --code-loc 0x0000 --code-size $(CODE_SIZE) --xram-loc $(XRAM_LOC) \
--xram-size $(XRAM_SIZE) --iram-size 256 --model-small
# list of base object files
OBJECTS = main.rel usb.rel protocol.rel jtag.rel delay.rel USBJmpTb.rel
HEADERS = $(INCLUDE_DIR)/main.h \
$(INCLUDE_DIR)/usb.h \
$(INCLUDE_DIR)/protocol.h \
$(INCLUDE_DIR)/jtag.h \
$(INCLUDE_DIR)/delay.h \
$(INCLUDE_DIR)/reg_ezusb.h \
$(INCLUDE_DIR)/io.h \
$(INCLUDE_DIR)/msgtypes.h
# Disable all built-in rules.
.SUFFIXES:
# Targets which are executed even when identically named file is present.
.PHONY: all, clean
all: ulink_firmware.ihx
$(SIZE) ulink_firmware.ihx
ulink_firmware.ihx: $(OBJECTS)
$(CC) -mmcs51 $(LDFLAGS) -o $@ $^
# Rebuild every C module (there are only 5 of them) if any header changes.
%.rel: $(SRC_DIR)/%.c $(HEADERS)
$(CC) -c $(CFLAGS) -mmcs51 -I$(INCLUDE_DIR) -o $@ $<
%.rel: $(SRC_DIR)/%.a51
$(AS) -lsgo $@ $<
clean:
rm -f *.asm *.lst *.rel *.rst *.sym *.ihx *.lk *.map *.mem
hex: ulink_firmware.ihx
$(PACKIHX) ulink_firmware.ihx > ulink_firmware.hex
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