git.zerfleddert.de Git - fnordlicht-mini/blob - firmware/fnordlicht-bootloader/Makefile

   1 ####################################################
   2 # fnordlicht-ng Makefile
   3 ####################################################
   4
   5 # ATTENTION:
   6 # Any of these variables are overridden with the values from the file
   7 # "config.mk", you can tune your settings there.  The file "config.mk" is not
   8 # under version control.
   9 # Just run 'make' to create a "config.mk" with the default settings
  10
  11 # hardware type, possible values (default is unset):
  12 # ATTENTION: please configure in config.mk, this is just included here for reference!
  13 # - fnordlicht -- original fnordlicht hardware
  14 # - fnordlichtmini -- fnordlichtmini hardware
  15 #HARDWARE = fnordlicht
  16
  17 # controller
  18 MCU = atmega8
  19
  20 # frequency
  21 F_CPU = 16000000UL
  22
  23 # main application name (without .hex)
  24 # eg 'test' when the main function is defined in 'test.c'
  25 TARGET = fboot
  26
  27 # c sourcecode files
  28 # eg. 'test.c foo.c foobar/baz.c'
  29 SRC = $(wildcard *.c)
  30
  31 # asm sourcecode files
  32 # eg. 'interrupts.S foobar/another.S'
  33 ASRC = $(wildcard *.S)
  34
  35 # headers which should be considered when recompiling
  36 # eg. 'global.h foobar/important.h'
  37 HEADERS = $(wildcard *.h)
  38
  39 # include directories (used for both, c and asm)
  40 # eg '. usbdrv/'
  41 INCLUDES =
  42
  43
  44 # use more debug-flags when compiling
  45 DEBUG = 0
  46
  47 # default baudrate
  48 CONFIG_SERIAL_BAUDRATE = 19200
  49
  50 # avrdude programmer protocol
  51 PROG = usbasp
  52 # avrdude programmer device
  53 DEV = usb
  54 # further flags for avrdude
  55 AVRDUDE_FLAGS =
  56
  57 CFLAGS += -DHARDWARE_$(HARDWARE)=1
  58 CFLAGS += -DCONFIG_SERIAL_BAUDRATE=$(CONFIG_SERIAL_BAUDRATE)
  59
  60 # use a custom linker script
  61 LDFLAGS += -L$(CURDIR)/ldscripts
  62
  63 .PHONY: all
  64
  65 # main make target (moved up here because of the config.mk target)
  66 all: $(TARGET).hex
  67
  68 # create config.mk (if it does not exist yet)
  69 $(CURDIR)/config.mk:
  70         @$(CP) config.mk.template config.mk
  71         @echo "===================================================="
  72         @echo "created file $@"
  73         @echo 'please tune your settings (especially $$HARDWARE)'
  74         @echo "there, then run 'make' again"
  75         @echo "===================================================="
  76         @exit 1
  77
  78 # include config file
  79 -include $(CURDIR)/config.mk
  80
  81 # bootloader section start
  82 # (see datasheet)
  83 ifeq ($(MCU),atmega8)
  84         # atmega8 with 1024 words bootloader:
  85         # bootloader section starts at 0xc00 (word-address) == 0x1800 (byte-address)
  86         #BOOT_SECTION_START = 0x1800
  87         #
  88         # atmega8 with 512 words bootloader:
  89         # bootloader section starts at 0xe00 (word-address) == 0x1c00 (byte-address)
  90         BOOT_SECTION_START = 0x1c00
  91         # 7kb data memory (raw memory minus bootloader space)
  92         DATA_MEM = 7
  93
  94         # use custom linker script
  95         LDFLAGS += -T avr4.x
  96 endif
  97 ifeq ($(MCU),atmega88)
  98         # atmega88 with 1024 words bootloader:
  99         # bootloader section starts at 0xc00 (word-address) == 0x1800 (byte-address)
 100         #BOOT_SECTION_START = 0x1800
 101         #
 102         # atmega88 with 512 words bootloader:
 103         # bootloader section starts at 0xe00 (word-address) == 0x1c00 (byte-address)
 104         BOOT_SECTION_START = 0x1c00
 105         # 7kb data memory (raw memory minus bootloader space)
 106         DATA_MEM = 7
 107
 108         # use custom linker script
 109         LDFLAGS += -T avr4.x
 110 endif
 111 ifeq ($(MCU),atmega168)
 112         # atmega168 with 1024 words bootloader:
 113         # bootloader section starts at 0x1c00 (word-address) == 0x3800 (byte-address)
 114         #BOOT_SECTION_START = 0x3800
 115         #
 116         # atmega168 with 512 words bootloader:
 117         # bootloader section starts at 0x1e00 (word-address) == 0x3c00 (byte-address)
 118         BOOT_SECTION_START = 0x3c00
 119         # 15kb data memory (raw memory minus bootloader space)
 120         DATA_MEM = 15
 121
 122         # use custom linker script
 123         LDFLAGS += -T avr5.x
 124 endif
 125
 126 LDFLAGS += -Wl,--section-start=.text=$(BOOT_SECTION_START)
 127 CFLAGS += -DBOOT_SECTION_START=$(BOOT_SECTION_START)
 128
 129
 130 ####################################################
 131 # 'make' configuration
 132 ####################################################
 133 CC = avr-gcc
 134 OBJCOPY = avr-objcopy
 135 OBJDUMP = avr-objdump
 136 AS = avr-as
 137 SIZE = avr-size
 138 CP = cp
 139 RM = rm -f
 140 RMDIR = rm -rf
 141 MKDIR = mkdir
 142 AVRDUDE = avrdude
 143
 144 # flags for automatic dependency handling
 145 DEPFLAGS = -MD -MP -MF .dep/$(@F).d
 146
 147 # flags for the compiler (for .c files)
 148 CFLAGS += -g -Os -mmcu=$(MCU) -DF_CPU=$(F_CPU) -std=gnu99 -fshort-enums $(DEPFLAGS)
 149 CFLAGS += $(addprefix -I,$(INCLUDES))
 150 CFLAGS += -fno-split-wide-types
 151 CFLAGS += --param inline-call-cost=2  -finline-limit=3 -fno-inline-small-functions
 152 CFLAGS += -Wl,--relax
 153
 154 # flags for the compiler (for .S files)
 155 ASFLAGS += -g -mmcu=$(MCU) -DF_CPU=$(F_CPU) -x assembler-with-cpp $(DEPFLAGS)
 156 ASFLAGS += $(addprefix -I,$(INCLUDES))
 157
 158 # flags for the linker
 159 LDFLAGS += -mmcu=$(MCU)
 160
 161 # fill in object files
 162 OBJECTS += $(SRC:.c=.o)
 163 OBJECTS += $(ASRC:.S=.o)
 164
 165 # include more debug flags, if $(DEBUG) is 1
 166 ifeq ($(DEBUG),1)
 167         CFLAGS += -Wall -W -Wchar-subscripts -Wmissing-prototypes
 168         CFLAGS += -Wmissing-declarations -Wredundant-decls
 169         CFLAGS += -Wstrict-prototypes -Wshadow -Wbad-function-cast
 170         CFLAGS += -Winline -Wpointer-arith -Wsign-compare
 171         CFLAGS += -Wunreachable-code -Wdisabled-optimization
 172         CFLAGS += -Wcast-align -Wwrite-strings -Wnested-externs -Wundef
 173         CFLAGS += -Wa,-adhlns=$(basename $@).lst
 174         CFLAGS += -DCONFIG_DEBUG=1
 175 endif
 176
 177 ####################################################
 178 # avrdude configuration
 179 ####################################################
 180 ifeq ($(MCU),atmega8)
 181         AVRDUDE_MCU=m8
 182 endif
 183 ifeq ($(MCU),atmega48)
 184         AVRDUDE_MCU=m48
 185 endif
 186 ifeq ($(MCU),atmega88)
 187         AVRDUDE_MCU=m88
 188 endif
 189 ifeq ($(MCU),atmega168)
 190         AVRDUDE_MCU=m168
 191 endif
 192
 193 AVRDUDE_FLAGS += -p $(AVRDUDE_MCU)
 194
 195 ####################################################
 196 # make targets
 197 ####################################################
 198
 199 .PHONY: hardware-check clean distclean avrdude-terminal
 200
 201 # check if HARDWARE is set
 202 hardware-check:
 203 ifeq ($(HARDWARE),)
 204         @echo 'please edit config.mk and set $$HARDWARE'
 205         @exit 1
 206 endif
 207
 208 $(TARGET).elf: hardware-check $(OBJECTS)
 209         $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJECTS)
 210
 211 # all objects (.o files) and config.mk
 212 $(OBJECTS): $(HEADERS) config.mk
 213
 214 # remove all compiled files
 215 clean:
 216         $(RM) $(foreach ext,elf hex eep.hex map,$(TARGET).$(ext)) \
 217                 $(foreach file,$(patsubst %.o,%,$(OBJECTS)),$(foreach ext,o lst lss,$(file).$(ext)))
 218
 219 # additionally remove the dependency makefile and config.mk
 220 distclean: clean
 221         $(RMDIR) .dep
 222         $(RM) config.mk
 223
 224 # avrdude-related targets
 225 install program: program-$(TARGET)
 226
 227 avrdude-terminal:
 228         $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(PROG) -P $(DEV) -t
 229
 230 program-%: %.hex
 231         $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(PROG) -P $(DEV) -U flash:w:$< -U lock:w:0x2f:m
 232
 233 program-eeprom-%: %.eep.hex
 234         $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(PROG) -P $(DEV) -U eeprom:w:$<
 235
 236 # special programming targets
 237 %.hex: %.elf
 238         $(OBJCOPY) -O ihex -R .eeprom $< $@
 239         @echo "===================================================="
 240         @echo "$@ compiled for hardware: $(HARDWARE)"
 241         @echo "using controller $(MCU)"
 242         @echo -n "size for $< is "
 243         @$(SIZE) -A $@ | grep '\.sec1' | tr -s ' ' | cut -d" " -f2
 244         @echo "===================================================="
 245
 246 %.eep.hex: %.elf
 247         $(OBJCOPY) --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 -O ihex -j .eeprom $< $@
 248
 249 %.lss: %.elf
 250         $(OBJDUMP) -h -S $< > $@
 251
 252 .PHONY: fuses-atmega8-fnordlichtmini-with-bootloader fuses-lock
 253
 254 fuses-atmega8-fnordlichtmini-with-bootloader:
 255         $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(PROG) -P $(DEV) -U lfuse:w:0x3f:m -U hfuse:w:0xda:m
 256
 257 fuses-atmega8-fnordlichtmini-without-bootloader:
 258         $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(PROG) -P $(DEV) -U lfuse:w:0x3f:m -U hfuse:w:0xd9:m
 259
 260 fuses-lock:
 261         $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(PROG) -P $(DEV) -U lock:w:0x2f:m
 262
 263 -include $(shell $(MKDIR) .dep 2>/dev/null) $(wildcard .dep/*)