overhaul

Makefile

@@ -0,0 +1,107 @@
+# simple AVR Makefile
+#
+# written by michael cousins (http://github.com/mcous)
+# released to the public domain
+
+# Makefile
+#
+# targets:
+#   all:    compiles the source code
+#   test:   tests the isp connection to the mcu
+#   flash:  writes compiled hex file to the mcu's flash memory
+#   fuse:   writes the fuse bytes to the MCU
+#   disasm: disassembles the code for debugging
+#   clean:  removes all .hex, .elf, and .o files in the source code and library directories
+
+# parameters (change this stuff accordingly)
+# project name
+PRJ = main
+# avr mcu
+MCU = atmega328p
+# mcu clock frequency
+# CLK = 16000000
+CLK = 8000000
+# avr programmer (and port if necessary)
+# e.g. PRG = usbtiny -or- PRG = arduino -P /dev/tty.usbmodem411
+PRG = usbtiny
+# fuse values for avr: low, high, and extended
+# these values are from an Arduino Uno (ATMega328P)
+# see http://www.engbedded.com/fusecalc/ for other MCUs and options
+LFU = 0xFF
+HFU = 0xDE
+EFU = 0x05
+# program source files (not including external libraries)
+SRC = $(PRJ).cpp
+# where to look for external libraries (consisting of .c/.cpp files and .h files)
+# e.g. EXT = ../../EyeToSee ../../YouSART
+EXT = Source Drivers Source/include Source/portable Source/portable/GCC/ATMega328 Source/portable/MemMang
+
+
+#################################################################################################
+# \/ stuff nobody needs to worry about until such time that worrying about it is appropriate \/ #
+#################################################################################################
+
+# include path
+INCLUDE := $(foreach dir, $(EXT), -I$(dir))
+# c flags
+CFLAGS    = -Wall -Os -DF_CPU=$(CLK) -mmcu=$(MCU) $(INCLUDE)
+# any aditional flags for c++
+CPPFLAGS =
+
+# executables
+AVRDUDE = avrdude -c $(PRG) -p $(MCU)
+OBJCOPY = avr-objcopy
+OBJDUMP = avr-objdump
+SIZE    = avr-size --format=avr --mcu=$(MCU)
+CC      = avr-gcc
+
+# generate list of objects
+CFILES    = $(filter %.c, $(SRC))
+EXTC     := $(foreach dir, $(EXT), $(wildcard $(dir)/*.c))
+CPPFILES  = $(filter %.cpp, $(SRC))
+EXTCPP   := $(foreach dir, $(EXT), $(wildcard $(dir)/*.cpp))
+OBJ       = $(CFILES:.c=.o) $(EXTC:.c=.o) $(CPPFILES:.cpp=.o) $(EXTCPP:.cpp=.o)
+
+# user targets
+# compile all files
+all: $(PRJ).hex
+
+# test programmer connectivity
+test:
+	$(AVRDUDE) -v
+
+# flash program to mcu
+flash: all
+	$(AVRDUDE) -U flash:w:$(PRJ).hex:i
+
+# write fuses to mcu
+fuse:
+	$(AVRDUDE) -U lfuse:w:$(LFU):m -U hfuse:w:$(HFU):m -U efuse:w:$(EFU):m
+
+# generate disassembly files for debugging
+disasm: $(PRJ).elf
+	$(OBJDUMP) -d $(PRJ).elf
+
+# remove compiled files
+clean:
+	rm -f *.hex *.elf *.o
+	$(foreach dir, $(EXT), rm -f $(dir)/*.o;)
+
+# other targets
+# objects from c files
+.c.o:
+	$(CC) $(CFLAGS) -c $< -o $@
+
+# objects from c++ files
+.cpp.o:
+	$(CC) $(CFLAGS) $(CPPFLAGS) -c $< -o $@
+
+# elf file
+$(PRJ).elf: $(OBJ)
+	$(CC) $(CFLAGS) -o $(PRJ).elf $(OBJ)
+
+# hex file
+$(PRJ).hex: $(PRJ).elf
+	rm -f $(PRJ).hex
+	$(OBJCOPY) -j .text -j .data -O ihex $(PRJ).elf $(PRJ).hex
+	$(SIZE) $(PRJ).elf