本人主要用MAC作開發,其實MAC平臺只要不是用來開發Windows或者是嵌入式的話,作其餘任何開發都比較舒服,至少我認爲比在windows上要舒服的多。可是坑爹的事情也有,就是若是作嵌入式開發就比較蛋疼了。沒辦法,蛋疼歸蛋疼,該作的也仍是要作的。html
本人手頭上有一塊STM32F103VET6的開發板,若是在windows下,那麼輕鬆愉快,裝個KeilMDK或者IAR for ARM就搞定了。可是在Mac OS X以及Linux下,就要用Makefile來管理開發了,這些平臺上可沒有很是方便的IDE供咱們來選擇。shell
好了,廢話很少說,下面就進入正題。windows
1、準備工做bash
至少要準備如下軟件,XCode,arm-none-eabi-gcc以及J-Link for MAC。我用的軟件版本以下:網絡
XCode6.x (AppStore 直接安裝就行了)app
gcc-arm-none-eabi-4_8-2014q3-20140805-mac.tar (VeryARM上下載,各個平臺都有)electron
JLink_MacOSX_V500k.pkg (https://www.segger.com/jlink-software.html 這個地方能夠下載)ide
2、環境配置工具
好了,安裝包都準備好了吧?先將gcc-arm-none-eabixxx這個包解壓到你自已方便的位置,並在.bash_profile中添加以下環境變量:ui
export PATH=$PATH:$(ARM-TOOLS-ROOT)/bin
其中$(ARM-TOOLS-ROOT)表明工具鏈解壓以後的根目錄,請用絕對路徑而且路徑名不要包含空格。完成以後在shell上執行以下指令使得以上設置的環境變量有效:
$ source .bash_profile
完成以後能夠在shell中執行以下命令查看時候安裝成功:
$ arm-none-eabi-gcc -v
若是安裝成功,此時會再shell中打印出一堆的gcc的版本信息,若是失敗,應該會打印此命令找不到之類的信息,那麼確定是環境變量設置出錯。
此時編譯工具鏈已經安裝完成,那麼再將JLink驅動裝上就行了,這個與通常的其餘軟件安裝過程同樣。若是安裝成功,應該會在/usr/bin下面找到JLinkExe,JFlashSPI等等可執行文件的。
3、代碼示例
本人使用代碼目錄結構以下圖:
這裏主要貼一下Makefile,這些Makefile也是在網上參考了其餘人並通過加工而成。主要的Makefile有三個,
Makefile.common這個是公共配置文件,STM32目錄下得Makefile以及libs下得Makefile。
一、Makefile.common
# include Makefile #This file is included in the general Makefile, the libs Makefile and the src Makefile #Different optimize settings for library and source files can be realized by using arguments #Compiler optimize settings: # -O0 no optimize, reduce compilation time and make debugging produce the expected results (default). # -O1 optimize, reduce code size and execution time, without much increase of compilation time. # -O2 optimize, reduce code execution time compared to ‘O1’, increase of compilation time. # -O3 optimize, turns on all optimizations, further increase of compilation time. # -Os optimize for size, enables all ‘-O2’ optimizations that do not typically increase code size and other code size optimizations. #Recommended optimize settings for release version: -O3 #Recommended optimize settings for debug version: -O0 #Valid parameters : # OptLIB=0 --> optimize library files using the -O0 setting # OptLIB=1 --> optimize library files using the -O1 setting # OptLIB=2 --> optimize library files using the -O2 setting # OptLIB=3 --> optimize library files using the -O3 setting # OptLIB=s --> optimize library files using the -Os setting # OptSRC=0 --> optimize source files using the -O0 setting # OptSRC=1 --> optimize source files using the -O1 setting # OptSRC=2 --> optimize source files using the -O2 setting # OptSRC=3 --> optimize source files using the -O3 setting # OptSRC=s --> optimize source files using the -Os setting # all --> build all # libs --> build libs only # src --> build src only # clean --> clean project # tshow --> show optimize settings #Example: # make OptLIB=3 OptSRC=0 all tshow #TOP=$(shell readlink -f "$(dir $(lastword $(MAKEFILE_LIST)))") TOP = /Users/zhj/Developer/STM32 PROGRAM = stm32_project LIBDIR = $(TOP)/libs #Adust the following line to the library in use STMLIB = $(LIBDIR)/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries #Adjust TypeOfMCU in use, see CMSIS file "stm32f10x.h" #STM32F103RBT (128KB FLASH, 20KB RAM) --> STM32F10X_MD #STM32F103RET (512KB FLASH, 64KB RAM) --> STM32F10X_HD #STM32F103ZET (512KB FLASH, 64KB RAM) --> STM32F10X_HD TypeOfMCU = STM32F10X_HD # Tool chains settings. TOOLCHAINS_PREFIX = arm-none-eabi CC = $(TOOLCHAINS_PREFIX)-gcc ld = $(TOOLCHAINS_PREFIX)-ld -v OBJCOPY = $(TOOLCHAINS_PREFIX)-objcopy AR = $(TOOLCHAINS_PREFIX)-ar GDB = $(TOOLCHAINS_PREFIX)-gdb INCLUDE =-I$(TOP)/inc INCLUDE +=-I$(STMLIB)/CMSIS/CM3/CoreSupport INCLUDE +=-I$(STMLIB)/CMSIS/CM3/DeviceSupport/ST/STM32F10x INCLUDE +=-I$(STMLIB)/STM32F10x_StdPeriph_Driver/inc COMMONFLAGS = -g -mcpu=cortex-m3 -mthumb COMMONFLAGSlib = $(COMMONFLAGS) #Commands for general Makefile and src Makefile ifeq ($(OptSRC),0) COMMONFLAGS += -O0 InfoTextSrc = src (no optimize, -O0) else ifeq ($(OptSRC),1) COMMONFLAGS += -O1 InfoTextSrc = src (optimize time+ size+, -O1) else ifeq ($(OptSRC),2) COMMONFLAGS += -O2 InfoTextSrc = src (optimize time++ size+, -O2) else ifeq ($(OptSRC),s) COMMONFLAGS += -Os InfoTextSrc = src (optimize size++, -Os) else COMMONFLAGS += -Os InfoTextSrc = src (full optimize, -O3) endif CFLAGS += $(COMMONFLAGS) -Wall -Werror $(INCLUDE) CFLAGS += -D$(TypeOfMCU) CFLAGS += -DUSE_STDPERIPH_DRIVER #Commands for libs Makefile ifeq ($(OptLIB),0) COMMONFLAGSlib += -O0 InfoTextLib = libs (no optimize, -O0) else ifeq ($(OptLIB),1) COMMONFLAGSlib += -O1 InfoTextLib = libs (optimize time+ size+, -O1) else ifeq ($(OptLIB),2) COMMONFLAGSlib += -O2 InfoTextLib = libs (optimize time++ size+, -O2) else ifeq ($(OptLIB),s) COMMONFLAGSlib += -Os InfoTextLib = libs (optimize size++, -Os) else COMMONFLAGSlib += -O3 InfoTextLib = libs (full optimize, -O3) endif CFLAGSlib += $(COMMONFLAGSlib) -Wall -Werror $(INCLUDE) CFLAGSlib += -D$(TypeOfMCU) CFLAGSlib += -DUSE_STDPERIPH_DRIVER
二、libs下的Makefile是用來編譯STM32標準驅動庫的,生成的中間文件在libs/out/tmp中,而最後成果在libs/out/lib中。請看具體內容:
# libs Makefile include ../Makefile.common INC = -I$(TOP)/src LIBS = libstm32.a OBJOUTDIR = $(LIBDIR)/out/tmp LIBOUTDIR = $(LIBDIR)/out/lib MY_C_SOURCES := $(wildcard $(STMLIB)/CMSIS/CM3/CoreSupport/*.c) MY_C_SOURCES += $(wildcard $(STMLIB)/CMSIS/CM3/DeviceSupport/ST/STM32F10x/*.c) MY_C_SOURCES += $(wildcard $(STMLIB)/STM32F10x_StdPeriph_Driver/src/*.c) SOURCES := $(patsubst %.c, %.c, $(MY_C_SOURCES)) MY_S_SOURCES := $(STMLIB)/CMSIS/CM3/DeviceSupport/ST/STM32F10x/startup/gcc_ride7/startup_stm32f10x_hd.s S_OBJS := $(patsubst %.s, %.o, $(MY_S_SOURCES)) OBJS := $(patsubst %.c, %.o, $(SOURCES)) OBJSWITHOUTDIR := $(patsubst %.c, $(OBJOUTDIR)/%.o, $(notdir $(SOURCES))) OBJSWITHOUTDIR += $(OBJOUTDIR)/$(notdir $(S_OBJS)) all: $(LIBS) $(LIBS):$(OBJS) $(S_OBJS) $(AR) cr $(LIBOUTDIR)/$@ $(OBJSWITHOUTDIR) .PHONY: clean tshow clean: rm -f $(LIBOUTDIR)/*.a rm -f $(OBJOUTDIR)/*.o show: @echo $(MY_C_SOURCES) @echo @echo $(SOURCES) @echo @echo $(OBJS) @echo tshow: @echo "#####################################################################################" @echo "################# optimize settings: $(InfoTextLib), $(InfoTextSrc)" @echo "#####################################################################################" $(S_OBJS): $(MY_S_SOURCES) $(CC) $(CFLAGSlib) -c $< -o $(OBJOUTDIR)/$(notdir $@) %.o:%.c $(CC) $(CFLAGSlib) $(INC) -c $< -o $(OBJOUTDIR)/$(notdir $@)
三、編譯二進制可執行文件的Makefile,就在與Makefile.common同級的目錄中。它編譯的結果包括中間文件都在src/out目錄中,這裏的編譯會用到libs下生成的libstm32.a文件。
# general Makefile include Makefile.common PROGRAM = stm32_project LIBS = libstm32.a OBJOUTDIR = $(TOP)/src/out/tmp BINOUTDIR = $(TOP)/src/out/bin LIBOUTDIR = $(LIBDIR)/out/lib INC = -I$(TOP)/src LDFLAGS=$(COMMONFLAGS) -fno-exceptions -ffunction-sections -fdata-sections \ -L$(LIBOUTDIR) -Wl,--no-whole-archive -lstm32 \ -nostartfiles -Wl,--gc-sections,-T$(TOP)/src/stm32_flash.ld MY_C_SOURCES := $(wildcard $(TOP)/src/*.c) SOURCES := $(patsubst %.c, %.c, $(MY_C_SOURCES)) OBJS := $(patsubst %.c, %.o, $(SOURCES)) OBJSWITHOUTDIR := $(patsubst %.c, $(OBJOUTDIR)/%.o, $(notdir $(SOURCES))) .PHONY: libs clean tshow show all: libs src libs: $(MAKE) -C $@ src: $(OBJS) $(CC) -o $(BINOUTDIR)/$(PROGRAM).elf $(OBJSWITHOUTDIR) $(LDFLAGS) $(OBJCOPY) -O ihex $(BINOUTDIR)/$(PROGRAM).elf $(BINOUTDIR)/$(PROGRAM).hex $(OBJCOPY) -O binary $(BINOUTDIR)/$(PROGRAM).elf $(BINOUTDIR)/$(PROGRAM).bin arm-none-eabi-readelf -a $(BINOUTDIR)/$(PROGRAM).elf > $(BINOUTDIR)/$(PROGRAM).info_elf arm-none-eabi-size -d -B -t $(BINOUTDIR)/$(PROGRAM).elf > $(BINOUTDIR)/$(PROGRAM).info_size arm-none-eabi-objdump -S $(BINOUTDIR)/$(PROGRAM).elf > $(BINOUTDIR)/$(PROGRAM).info_code arm-none-eabi-nm -t d -S --size-sort -s $(BINOUTDIR)/$(PROGRAM).elf > $(BINOUTDIR)/$(PROGRAM).info_symbol %.o:%.c $(CC) $(CFLAGS) $(INC) -c $< -o $(OBJOUTDIR)/$(notdir $@) clean: $(MAKE) -C libs $@ -rm -r $(OBJOUTDIR)/*.o @cd $(BINOUTDIR) -rm -f $(PROGRAM).elf $(PROGRAM).hex $(PROGRAM).bin $(PROGRAM).info_elf $(PROGRAM).info_size -rm -f $(PROGRAM).info_code -rm -f $(PROGRAM).info_symbol @cd .. show: @echo $(MY_C_SOURCES) @echo @echo $(SOURCES) @echo @echo $(OBJS) @echo @echo $(OBJSWITHOUTDIR) tshow: @echo "######################################################################################################" @echo "################# optimize settings: $(InfoTextLib), $(InfoTextSrc)" @echo "######################################################################################################"
四、當文件都配置穩當,那麼就能夠在STM32這一級目錄中執行make指令,若是一塊兒正常就會在src/out/bin下生成一個stm32_project.bin的文件,這個文件就是最終要燒錄到開發板的二進制文件。
五、還要注意的是,注意程序在連接的時候須要一個連接腳本,這個腳本定義了連接過程當中全部代碼的定位問題。因此必定要注意其配置。這個文件在STM32標準驅動庫中的Project/STM32F10x_StdPerihp_Template/TrueSTUDIO中每一EVAL目錄中有示例,主要區別就是目標MCU的RAM/FLASH的大小。必定注意,我使用的STM32F103VET6是512KB flash/64KB RAM,其連接腳本(stm32_flash.ld)以下:
/* ***************************************************************************** ** ** File : stm32_flash.ld ** ** Abstract : Linker script for STM32F103ZE Device with ** 512KByte FLASH, 64KByte RAM ** ** Set heap size, stack size and stack location according ** to application requirements. ** ** Set memory bank area and size if external memory is used. ** ** Target : STMicroelectronics STM32 ** ** Environment : Atollic TrueSTUDIO(R) ** ** Distribution: The file is distributed 「as is,」 without any warranty ** of any kind. ** ** (c)Copyright Atollic AB. ** You may use this file as-is or modify it according to the needs of your ** project. Distribution of this file (unmodified or modified) is not ** permitted. Atollic AB permit registered Atollic TrueSTUDIO(R) users the ** rights to distribute the assembled, compiled & linked contents of this ** file as part of an application binary file, provided that it is built ** using the Atollic TrueSTUDIO(R) toolchain. ** ***************************************************************************** */ /* Entry Point */ ENTRY(Reset_Handler) /* Highest address of the user mode stack */ _estack = 0x20010000; /* end of 64K RAM */ /* Generate a link error if heap and stack don't fit into RAM */ _Min_Heap_Size = 0; /* required amount of heap */ _Min_Stack_Size = 0x200; /* required amount of stack */ /* Specify the memory areas */ MEMORY { FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 512K RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 64K MEMORY_B1 (rx) : ORIGIN = 0x60000000, LENGTH = 0K } /* Define output sections */ SECTIONS { /* The startup code goes first into FLASH */ .isr_vector : { . = ALIGN(4); KEEP(*(.isr_vector)) /* Startup code */ . = ALIGN(4); } >FLASH /* The program code and other data goes into FLASH */ .text : { . = ALIGN(4); *(.text) /* .text sections (code) */ *(.text*) /* .text* sections (code) */ *(.rodata) /* .rodata sections (constants, strings, etc.) */ *(.rodata*) /* .rodata* sections (constants, strings, etc.) */ *(.glue_7) /* glue arm to thumb code */ *(.glue_7t) /* glue thumb to arm code */ KEEP (*(.init)) KEEP (*(.fini)) . = ALIGN(4); _etext = .; /* define a global symbols at end of code */ } >FLASH .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH .ARM : { __exidx_start = .; *(.ARM.exidx*) __exidx_end = .; } >FLASH .ARM.attributes : { *(.ARM.attributes) } > FLASH .preinit_array : { PROVIDE_HIDDEN (__preinit_array_start = .); KEEP (*(.preinit_array*)) PROVIDE_HIDDEN (__preinit_array_end = .); } >FLASH .init_array : { PROVIDE_HIDDEN (__init_array_start = .); KEEP (*(SORT(.init_array.*))) KEEP (*(.init_array*)) PROVIDE_HIDDEN (__init_array_end = .); } >FLASH .fini_array : { PROVIDE_HIDDEN (__fini_array_start = .); KEEP (*(.fini_array*)) KEEP (*(SORT(.fini_array.*))) PROVIDE_HIDDEN (__fini_array_end = .); } >FLASH /* used by the startup to initialize data */ _sidata = .; /* Initialized data sections goes into RAM, load LMA copy after code */ .data : AT ( _sidata ) { . = ALIGN(4); _sdata = .; /* create a global symbol at data start */ *(.data) /* .data sections */ *(.data*) /* .data* sections */ . = ALIGN(4); _edata = .; /* define a global symbol at data end */ } >RAM /* Uninitialized data section */ . = ALIGN(4); .bss : { /* This is used by the startup in order to initialize the .bss secion */ _sbss = .; /* define a global symbol at bss start */ __bss_start__ = _sbss; *(.bss) *(.bss*) *(COMMON) . = ALIGN(4); _ebss = .; /* define a global symbol at bss end */ __bss_end__ = _ebss; } >RAM PROVIDE ( end = _ebss ); PROVIDE ( _end = _ebss ); /* User_heap_stack section, used to check that there is enough RAM left */ ._user_heap_stack : { . = ALIGN(4); . = . + _Min_Heap_Size; . = . + _Min_Stack_Size; . = ALIGN(4); } >RAM /* MEMORY_bank1 section, code must be located here explicitly */ /* Example: extern int foo(void) __attribute__ ((section (".mb1text"))); */ .memory_b1_text : { *(.mb1text) /* .mb1text sections (code) */ *(.mb1text*) /* .mb1text* sections (code) */ *(.mb1rodata) /* read-only data (constants) */ *(.mb1rodata*) } >MEMORY_B1 /* Remove information from the standard libraries */ /DISCARD/ : { libc.a ( * ) libm.a ( * ) libgcc.a ( * ) } }
4、使用J-Link下載代碼到MCU
好了,如今咱們擁有一個能夠燒錄的stm32_project.bin文件。如今請將J-LINK鏈接到你的MAC而且爲開發板供電。
若是J-LINK鏈接正常,那麼系統信息中會顯示J-Link設備。個人設備以下:
如今可使用安裝好的J-LINK驅動將bin文件下載到MCU得內置flash中。請先在shell中進入的工程根目錄,並在shell執行以下命令:
$ JLinkExe J-Link>
如今您能夠在此命令行中執行相關命令來下載bin文件。首先要執行device這條指令用來指定您的目標MCU,個人是STM32F103VET6,因此以下:
J-Link > exec device=STM32F103VE
是否成功會有消息提示,請仔細閱讀。
在使用以上命令選擇了目標MCU以後,就能夠下載bin文件了,以下:
J-Link > loadbin src/out/bin/stm32_project.bin 0x08000000
其中loadbin爲命令,緊接着爲文件名,再接着爲目標MCU內置Flash的起始地址。這個地址依賴具體的MCU,請查閱相關Datasheet,但應該與stm32_flash.ld中memory section中Flash描述的起始地址同樣,及以下:
/* Specify the memory areas */ MEMORY { FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 512K RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 64K MEMORY_B1 (rx) : ORIGIN = 0x60000000, LENGTH = 0K }
其中的 FLASH(rx) 中的ORIGIN就表示Flash的起始地址,上述命令中的地址應該與其保持一致。若是這條命令執行成功就會打印出OK等字樣,而且會打印相關打印的時間信息等。
大功告成,如此一來,只要將MCU復位,就能夠看到代碼的執行效果了。
5、總結
本文主要介紹了Mac OS X下如何搭建STM32的開發環境。其實本文中的Makefile仍是不太完善,由於每次執行make全部的文件都會從新編譯,可是不影響功能,相關完善就再也不發文,請知悉。文中內容均爲原創,只有Makefile.common的部份內容摘錄自網絡,轉載請註明出處,謝謝。