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Merge pull request #94 from dfries/fixups
Makefile, set MCU at top and remove -nostdlibmain
Paul Stoffregen
9 years ago
1 changed files with 10 additions and 6 deletions
+ 10
- 6
teensy3/Makefile
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| @@ -1,3 +1,9 @@ | |||
| # set your MCU type here, or make command line `make MCU=MK20DX256` | |||
| MCU=MK20DX256 | |||
| # make it lower case | |||
| LOWER_MCU := $(subst A,a,$(subst B,b,$(subst C,c,$(subst D,d,$(subst E,e,$(subst F,f,$(subst G,g,$(subst H,h,$(subst I,i,$(subst J,j,$(subst K,k,$(subst L,l,$(subst M,m,$(subst N,n,$(subst O,o,$(subst P,p,$(subst Q,q,$(subst R,r,$(subst S,s,$(subst T,t,$(subst U,u,$(subst V,v,$(subst W,w,$(subst X,x,$(subst Y,y,$(subst Z,z,$(MCU))))))))))))))))))))))))))) | |||
| MCU_LD = $(LOWER_MCU).ld | |||
| # The name of your project (used to name the compiled .hex file) | |||
| TARGET = main | |||
| @@ -10,7 +16,7 @@ ARDUINOPATH ?= ../../../../.. | |||
| OPTIONS = -DF_CPU=48000000 -DUSB_SERIAL -DLAYOUT_US_ENGLISH -DUSING_MAKEFILE | |||
| # options needed by many Arduino libraries to configure for Teensy 3.0 | |||
| OPTIONS += -D__MK20DX256__ -DARDUINO=10600 -DTEENSYDUINO=121 | |||
| OPTIONS += -D__$(MCU)__ -DARDUINO=10600 -DTEENSYDUINO=121 | |||
| # Other Makefiles and project templates for Teensy 3.x: | |||
| @@ -40,7 +46,7 @@ COMPILERPATH = $(ARDUINOPATH)/hardware/tools/arm/bin | |||
| #************************************************************************ | |||
| # CPPFLAGS = compiler options for C and C++ | |||
| CPPFLAGS = -Wall -g -Os -mcpu=cortex-m4 -mthumb -nostdlib -MMD $(OPTIONS) -I. | |||
| CPPFLAGS = -Wall -g -Os -mcpu=cortex-m4 -mthumb -MMD $(OPTIONS) -I. | |||
| # compiler options for C++ only | |||
| CXXFLAGS = -std=gnu++0x -felide-constructors -fno-exceptions -fno-rtti | |||
| @@ -49,7 +55,7 @@ CXXFLAGS = -std=gnu++0x -felide-constructors -fno-exceptions -fno-rtti | |||
| CFLAGS = | |||
| # linker options | |||
| LDFLAGS = -Os -Wl,--gc-sections,--defsym=__rtc_localtime=0 --specs=nano.specs -mcpu=cortex-m4 -mthumb -Tmk20dx256.ld | |||
| LDFLAGS = -Os -Wl,--gc-sections,--defsym=__rtc_localtime=0 --specs=nano.specs -mcpu=cortex-m4 -mthumb -T$(MCU_LD) | |||
| # additional libraries to link | |||
| LIBS = -lm | |||
| @@ -72,7 +78,7 @@ OBJS := $(C_FILES:.c=.o) $(CPP_FILES:.cpp=.o) | |||
| all: $(TARGET).hex | |||
| $(TARGET).elf: $(OBJS) mk20dx256.ld | |||
| $(TARGET).elf: $(OBJS) $(MCU_LD) | |||
| $(CC) $(LDFLAGS) -o $@ $(OBJS) $(LIBS) | |||
| %.hex: %.elf | |||
| @@ -87,5 +93,3 @@ $(TARGET).elf: $(OBJS) mk20dx256.ld | |||
| clean: | |||
| rm -f *.o *.d $(TARGET).elf $(TARGET).hex | |||
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