| # ---------------------------------------------------------------------------- |
| # ATMEL Microcontroller Software Support |
| # ---------------------------------------------------------------------------- |
| # Copyright (c) 2010, Atmel Corporation |
| # |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following condition is met: |
| # |
| # - Redistributions of source code must retain the above copyright notice, |
| # this list of conditions and the disclaimer below. |
| # |
| # Atmel's name may not be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR |
| # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE |
| # DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, |
| # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, |
| # OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| # LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| # EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| # ---------------------------------------------------------------------------- |
| |
| #------------------------------------------------------------------------------- |
| # User-modifiable options |
| #------------------------------------------------------------------------------- |
| |
| ifeq ('$(CHIP)','') |
| $(error CHIP not defined) |
| endif |
| |
| include sam_series.mk |
| |
| # fill the needed variables |
| ifeq ($(CHIP),$(findstring $(CHIP), $(SAM3N))) |
| |
| BOARD:=SAM3N_EK |
| SERIES:=sam3n |
| |
| else ifeq ($(CHIP),$(findstring $(CHIP), $(SAM3S))) |
| |
| BOARD:=SAM3S_EK |
| SERIES:=sam3s |
| |
| else ifeq ($(CHIP),$(findstring $(CHIP), $(SAM3SD8))) |
| |
| BOARD:=SAM3S_EK2 |
| SERIES:=sam3sd8 |
| |
| else ifeq ($(CHIP),$(findstring $(CHIP), $(SAM3U))) |
| |
| BOARD:=SAM3U_EK |
| SERIES:=sam3u |
| |
| else ifeq ($(CHIP),$(findstring $(CHIP), $(SAM3XA))) |
| |
| BOARD:=SAM3X_EK |
| SERIES:=sam3xa |
| |
| else ifeq ($(CHIP),$(findstring $(CHIP), $(SAM4S))) |
| |
| BOARD:=SAM4S_EK |
| SERIES:=sam4s |
| |
| endif |
| |
| |
| # Defines which are the available memory targets for the device. |
| MEMORIES = sram flash |
| |
| # Optimization level, put in comment for debugging |
| OPTIMIZATION = -Os |
| |
| # Output directories |
| BIN = $(CHIP)_bin |
| OBJ = $(CHIP)_obj |
| |
| # Output file basename |
| OUTPUT_BIN = $(BIN)/cmsis_example_$(BOARD)_$(CHIP) |
| |
| # GCC toolchain provider |
| GCC_TOOLCHAIN=gcc_atmel |
| |
| #------------------------------------------------------------------------------- |
| # Tools |
| #------------------------------------------------------------------------------- |
| |
| # Toolchain prefix when cross-compiling |
| CROSS_COMPILE = arm-none-eabi- |
| |
| CMSIS_ROOT=../../.. |
| CMSIS_PATH=$(CMSIS_ROOT)/CMSIS/Include |
| SAM_PATH=$(CMSIS_ROOT)/Device/ATMEL |
| DEVICE_PATH=$(SAM_PATH)/$(SERIES)/source |
| |
| LIBS = -Wl,--start-group -lgcc -lc -Wl,--end-group |
| |
| LIB_PATH+=-L=/lib/thumb2 |
| LIB_PATH+=-L"$(realpath $(DEVICE_PATH)/$(GCC_TOOLCHAIN))" |
| |
| # Compilation tools |
| CC = $(CROSS_COMPILE)gcc |
| LD = $(CROSS_COMPILE)ld |
| SIZE = $(CROSS_COMPILE)size |
| STRIP = $(CROSS_COMPILE)strip |
| OBJCOPY = $(CROSS_COMPILE)objcopy |
| GDB = $(CROSS_COMPILE)gdb |
| NM = $(CROSS_COMPILE)nm |
| RM = rm |
| |
| # Flags |
| INCLUDES := -I"$(CMSIS_PATH)" |
| INCLUDES += -I"$(SAM_PATH)" |
| INCLUDES += -I"$(SAM_PATH)/$(SERIES)/include" |
| |
| CFLAGS += -Wall -Wchar-subscripts -Wcomment -Wformat=2 -Wimplicit-int |
| CFLAGS += -Werror-implicit-function-declaration -Wmain -Wparentheses |
| CFLAGS += -Wsequence-point -Wreturn-type -Wswitch -Wtrigraphs -Wunused |
| CFLAGS += -Wuninitialized -Wunknown-pragmas -Wfloat-equal -Wundef |
| CFLAGS += -Wshadow -Wpointer-arith -Wbad-function-cast -Wwrite-strings |
| CFLAGS += -Wsign-compare -Waggregate-return -Wstrict-prototypes |
| CFLAGS += -Wmissing-prototypes -Wmissing-declarations |
| CFLAGS += -Wformat -Wmissing-format-attribute -Wno-deprecated-declarations |
| CFLAGS += -Wpacked -Wredundant-decls -Wnested-externs -Winline -Wlong-long |
| CFLAGS += -Wunreachable-code |
| CFLAGS += -Wcast-align |
| #CFLAGS += -Wmissing-noreturn |
| #CFLAGS += -Wconversion |
| |
| # To reduce application size use only integer printf function. |
| CFLAGS += -Dprintf=iprintf |
| |
| # CFLAGS += -mlong-calls -Wall |
| # CFLAGS += -ansi |
| CFLAGS += -std=c99 |
| CFLAGS += --param max-inline-insns-single=500 -mcpu=cortex-m3 -mthumb -ffunction-sections |
| CFLAGS += -g $(OPTIMIZATION) $(INCLUDES) -D__$(CHIP)__ -DBOARD=$(BOARD) |
| ASFLAGS = -mcpu=cortex-m3 -mthumb -Wall -g $(OPTIMIZATION) $(INCLUDES) -D__$(CHIP)__ -D__ASSEMBLY__ |
| LDFLAGS= -mcpu=cortex-m3 -mthumb -Wl,--cref -Wl,--check-sections -Wl,--gc-sections -Wl,--entry=Reset_Handler -Wl,--defsym=STACK_SIZE=0x200 -Wl,--unresolved-symbols=report-all -Wl,--warn-common -Wl,--warn-section-align -Wl,--warn-unresolved-symbols |
| #LD_OPTIONAL=-Wl,--print-gc-sections -Wl,--stats |
| |
| #------------------------------------------------------------------------------- |
| # Files |
| #------------------------------------------------------------------------------- |
| |
| # Directories where source files can be found |
| |
| VPATH += .. |
| VPATH += $(DEVICE_PATH) |
| VPATH += $(DEVICE_PATH)/$(GCC_TOOLCHAIN) |
| |
| # Objects built from C source files |
| C_OBJECTS += main.o |
| C_OBJECTS += startup_$(SERIES).o |
| C_OBJECTS += system_$(SERIES).o |
| |
| # Append OBJ and BIN directories to output filename |
| OUTPUT := $(BIN)/$(OUTPUT_BIN) |
| |
| #------------------------------------------------------------------------------- |
| # Rules |
| #------------------------------------------------------------------------------- |
| |
| all: $(BIN) $(OBJ) $(MEMORIES) |
| |
| $(BIN) $(OBJ): |
| -@mkdir $@ |
| |
| define RULES |
| C_OBJECTS_$(1) = $(addprefix $(OBJ)/$(1)_, $(C_OBJECTS)) |
| ASM_OBJECTS_$(1) = $(addprefix $(OBJ)/$(1)_, $(ASM_OBJECTS)) |
| |
| $(1): $$(ASM_OBJECTS_$(1)) $$(C_OBJECTS_$(1)) |
| $(CC) $(LIB_PATH) $(LDFLAGS) $(LD_OPTIONAL) -T"$(realpath $(DEVICE_PATH)/$(GCC_TOOLCHAIN)/$(CHIP)_$$@.ld)" -Wl,-Map,"$(OUTPUT_BIN)_$$@.map" -o "$(OUTPUT_BIN)_$$@.elf" $$^ $(LIBS) |
| @$(NM) "$(OUTPUT_BIN)_$$@.elf" >"$(OUTPUT_BIN)_$$@.elf.txt" |
| @$(OBJCOPY) -O binary "$(OUTPUT_BIN)_$$@.elf" "$(OUTPUT_BIN)_$$@.bin" |
| @$(SIZE) $$^ "$(OUTPUT_BIN)_$$@.elf" |
| |
| $$(C_OBJECTS_$(1)): $(OBJ)/$(1)_%.o: %.c Makefile $(OBJ) $(BIN) |
| @$(CC) $(CFLAGS) -D$(1) -c -o $$@ $$< |
| |
| $$(ASM_OBJECTS_$(1)): $(OBJ)/$(1)_%.o: %.S Makefile $(OBJ) $(BIN) |
| @$(CC) $(ASFLAGS) -D$(1) -c -o $$@ $$< |
| |
| debug_$(1): $(1) |
| $(GDB) -x "$(CHIP)_$(1).gdb" -ex "reset" -readnow -se "$(OUTPUT_BIN)_$(1).elf" |
| endef |
| |
| $(foreach MEMORY, $(MEMORIES), $(eval $(call RULES,$(MEMORY)))) |
| |
| clean: |
| -$(RM) -fR $(OBJ) $(BIN) |
