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| 1 | +# Hey Emacs, this is a -*- makefile -*- |
| 2 | + |
| 3 | +# AVR-GCC Makefile template, derived from the WinAVR template (which |
| 4 | +# is public domain), believed to be neutral to any flavor of "make" |
| 5 | +# (GNU make, BSD make, SysV make) |
| 6 | + |
| 7 | + |
| 8 | +MCU = atmega1284p |
| 9 | +FORMAT = ihex |
| 10 | +TARGET = main |
| 11 | +SRC = $(TARGET).c ./lib/avr-uart/uart.c |
| 12 | +ASRC = |
| 13 | +OPT = s |
| 14 | + |
| 15 | +# Name of this Makefile (used for "make depend"). |
| 16 | +MAKEFILE = Makefile |
| 17 | + |
| 18 | +# Debugging format. |
| 19 | +# Native formats for AVR-GCC's -g are stabs [default], or dwarf-2. |
| 20 | +# AVR (extended) COFF requires stabs, plus an avr-objcopy run. |
| 21 | +DEBUG = stabs |
| 22 | + |
| 23 | +# Compiler flag to set the C Standard level. |
| 24 | +# c89 - "ANSI" C |
| 25 | +# gnu89 - c89 plus GCC extensions |
| 26 | +# c99 - ISO C99 standard (not yet fully implemented) |
| 27 | +# gnu99 - c99 plus GCC extensions |
| 28 | +CSTANDARD = -std=gnu99 |
| 29 | + |
| 30 | +# Place -D or -U options here |
| 31 | +CDEFS = |
| 32 | + |
| 33 | +# Place -I options here |
| 34 | +CINCS = |
| 35 | + |
| 36 | + |
| 37 | +CDEBUG = -g$(DEBUG) |
| 38 | +CWARN = -Wall -Wstrict-prototypes |
| 39 | +CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums |
| 40 | +#CEXTRA = -Wa,-adhlns=$(<:.c=.lst) |
| 41 | +CFLAGS = $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CWARN) $(CSTANDARD) $(CEXTRA) |
| 42 | + |
| 43 | + |
| 44 | +#ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs |
| 45 | + |
| 46 | + |
| 47 | +#Additional libraries. |
| 48 | + |
| 49 | +# Minimalistic printf version |
| 50 | +PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min |
| 51 | + |
| 52 | +# Floating point printf version (requires MATH_LIB = -lm below) |
| 53 | +PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt |
| 54 | + |
| 55 | +PRINTF_LIB = $(PRINTF_LIB_FLOAT) |
| 56 | + |
| 57 | +# Minimalistic scanf version |
| 58 | +SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min |
| 59 | + |
| 60 | +# Floating point + %[ scanf version (requires MATH_LIB = -lm below) |
| 61 | +SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt |
| 62 | + |
| 63 | +SCANF_LIB = |
| 64 | + |
| 65 | +MATH_LIB = -lm |
| 66 | + |
| 67 | +# External memory options |
| 68 | + |
| 69 | +# 64 KB of external RAM, starting after internal RAM (ATmega128!), |
| 70 | +# used for variables (.data/.bss) and heap (malloc()). |
| 71 | +#EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff |
| 72 | + |
| 73 | +# 64 KB of external RAM, starting after internal RAM (ATmega128!), |
| 74 | +# only used for heap (malloc()). |
| 75 | +#EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff |
| 76 | + |
| 77 | +EXTMEMOPTS = |
| 78 | + |
| 79 | +#LDMAP = $(LDFLAGS) -Wl,-Map=$(TARGET).map,--cref |
| 80 | +LDFLAGS = $(EXTMEMOPTS) $(LDMAP) $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB) |
| 81 | + |
| 82 | + |
| 83 | +# Programming support using avrdude. Settings and variables. |
| 84 | + |
| 85 | +AVRDUDE_PROGRAMMER = atmelice_isp |
| 86 | +AVRDUDE_PORT = usb |
| 87 | + |
| 88 | +AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex |
| 89 | +#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep |
| 90 | + |
| 91 | + |
| 92 | +# Uncomment the following if you want avrdude's erase cycle counter. |
| 93 | +# Note that this counter needs to be initialized first using -Yn, |
| 94 | +# see avrdude manual. |
| 95 | +#AVRDUDE_ERASE_COUNTER = -y |
| 96 | + |
| 97 | +# Uncomment the following if you do /not/ wish a verification to be |
| 98 | +# performed after programming the device. |
| 99 | +#AVRDUDE_NO_VERIFY = -V |
| 100 | + |
| 101 | +# Increase verbosity level. Please use this when submitting bug |
| 102 | +# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude> |
| 103 | +# to submit bug reports. |
| 104 | +#AVRDUDE_VERBOSE = -v -v |
| 105 | + |
| 106 | +AVRDUDE_BASIC = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER) |
| 107 | +AVRDUDE_FLAGS = $(AVRDUDE_BASIC) $(AVRDUDE_NO_VERIFY) $(AVRDUDE_VERBOSE) $(AVRDUDE_ERASE_COUNTER) |
| 108 | + |
| 109 | + |
| 110 | +CC = avr-gcc |
| 111 | +OBJCOPY = avr-objcopy |
| 112 | +OBJDUMP = avr-objdump |
| 113 | +SIZE = avr-size |
| 114 | +NM = avr-nm |
| 115 | +AVRDUDE = avrdude |
| 116 | +REMOVE = rm -f |
| 117 | +MV = mv -f |
| 118 | + |
| 119 | +# Define all object files. |
| 120 | +OBJ = $(SRC:.c=.o) $(ASRC:.S=.o) |
| 121 | + |
| 122 | +# Define all listing files. |
| 123 | +LST = $(ASRC:.S=.lst) $(SRC:.c=.lst) |
| 124 | + |
| 125 | +# Combine all necessary flags and optional flags. |
| 126 | +# Add target processor to flags. |
| 127 | +ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) |
| 128 | +ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS) |
| 129 | + |
| 130 | + |
| 131 | +# Default target. |
| 132 | +all: build |
| 133 | + |
| 134 | +build: elf hex eep |
| 135 | + |
| 136 | +elf: $(TARGET).elf |
| 137 | +hex: $(TARGET).hex |
| 138 | +eep: $(TARGET).eep |
| 139 | +lss: $(TARGET).lss |
| 140 | +sym: $(TARGET).sym |
| 141 | + |
| 142 | + |
| 143 | +# Program the device. |
| 144 | +program: $(TARGET).hex $(TARGET).eep |
| 145 | + $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM) |
| 146 | + |
| 147 | + |
| 148 | + |
| 149 | + |
| 150 | +# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB. |
| 151 | +COFFCONVERT=$(OBJCOPY) --debugging \ |
| 152 | +--change-section-address .data-0x800000 \ |
| 153 | +--change-section-address .bss-0x800000 \ |
| 154 | +--change-section-address .noinit-0x800000 \ |
| 155 | +--change-section-address .eeprom-0x810000 |
| 156 | + |
| 157 | + |
| 158 | +coff: $(TARGET).elf |
| 159 | + $(COFFCONVERT) -O coff-avr $(TARGET).elf $(TARGET).cof |
| 160 | + |
| 161 | + |
| 162 | +extcoff: $(TARGET).elf |
| 163 | + $(COFFCONVERT) -O coff-ext-avr $(TARGET).elf $(TARGET).cof |
| 164 | + |
| 165 | + |
| 166 | +.SUFFIXES: .elf .hex .eep .lss .sym |
| 167 | + |
| 168 | +.elf.hex: |
| 169 | + $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@ |
| 170 | + |
| 171 | +.elf.eep: |
| 172 | + -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \ |
| 173 | + --change-section-lma .eeprom=0 -O $(FORMAT) $< $@ |
| 174 | + |
| 175 | +# Create extended listing file from ELF output file. |
| 176 | +.elf.lss: |
| 177 | + $(OBJDUMP) -h -S $< > $@ |
| 178 | + |
| 179 | +# Create a symbol table from ELF output file. |
| 180 | +.elf.sym: |
| 181 | + $(NM) -n $< > $@ |
| 182 | + |
| 183 | + |
| 184 | + |
| 185 | +# Link: create ELF output file from object files. |
| 186 | +$(TARGET).elf: $(OBJ) |
| 187 | + $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS) |
| 188 | + |
| 189 | + |
| 190 | +# Compile: create object files from C source files. |
| 191 | +.c.o: |
| 192 | + $(CC) -c $(ALL_CFLAGS) $< -o $@ |
| 193 | + |
| 194 | + |
| 195 | +# Compile: create assembler files from C source files. |
| 196 | +.c.s: |
| 197 | + $(CC) -S $(ALL_CFLAGS) $< -o $@ |
| 198 | + |
| 199 | + |
| 200 | +# Assemble: create object files from assembler source files. |
| 201 | +.S.o: |
| 202 | + $(CC) -c $(ALL_ASFLAGS) $< -o $@ |
| 203 | + |
| 204 | + |
| 205 | + |
| 206 | +# Target: clean project. |
| 207 | +clean: |
| 208 | + $(REMOVE) $(TARGET).hex $(TARGET).eep $(TARGET).cof $(TARGET).elf \ |
| 209 | + $(TARGET).map $(TARGET).sym $(TARGET).lss \ |
| 210 | + $(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d) |
| 211 | + |
| 212 | +depend: |
| 213 | + if grep '^# DO NOT DELETE' $(MAKEFILE) >/dev/null; \ |
| 214 | + then \ |
| 215 | + sed -e '/^# DO NOT DELETE/,$$d' $(MAKEFILE) > \ |
| 216 | + $(MAKEFILE).$$$$ && \ |
| 217 | + $(MV) $(MAKEFILE).$$$$ $(MAKEFILE); \ |
| 218 | + fi |
| 219 | + echo '# DO NOT DELETE THIS LINE -- make depend depends on it.' \ |
| 220 | + >> $(MAKEFILE); \ |
| 221 | + $(CC) -M -mmcu=$(MCU) $(CDEFS) $(CINCS) $(SRC) $(ASRC) >> $(MAKEFILE) |
| 222 | + |
| 223 | +.PHONY: all build elf hex eep lss sym program coff extcoff clean depend |
| 224 | + |
| 225 | + |
| 226 | + |
| 227 | + |
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