Simple single-color 8x8x8 LED Cube with AVRs
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makefile 11KB

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  1. # Makefile
  2. #
  3. # On command line:
  4. #
  5. # make all = Make software.
  6. #
  7. # make clean = Clean out built project files.
  8. #
  9. # make coff = Convert ELF to AVR COFF (for use with AVR Studio 3.x or VMLAB).
  10. #
  11. # make extcoff = Convert ELF to AVR Extended COFF (for use with AVR Studio
  12. # 4.07 or greater).
  13. #
  14. # make program = Download the hex file to the device, using avrdude. Please
  15. # customize the avrdude settings below first!
  16. #
  17. # make filename.s = Just compile filename.c into the assembler code only
  18. #
  19. # To rebuild project do "make clean" then "make all".
  20. #
  21. # MCU name
  22. MCU = atmega32
  23. # Main Oscillator Frequency
  24. # This is only used to define F_OSC in all assembler and c-sources.
  25. F_CPU = 16000000
  26. # Output format. (can be srec, ihex, binary)
  27. FORMAT = ihex
  28. # Target file name (without extension).
  29. TARGET = main
  30. # List C source files here. (C dependencies are automatically generated.)
  31. SRC = $(TARGET).c
  32. SRC += uart.c # Additional Source-File
  33. SRC += cube.c
  34. SRC += twi.c
  35. # List Assembler source files here.
  36. # Make them always end in a capital .S. Files ending in a lowercase .s
  37. # will not be considered source files but generated files (assembler
  38. # output from the compiler), and will be deleted upon "make clean"!
  39. # Even though the DOS/Win* filesystem matches both .s and .S the same,
  40. # it will preserve the spelling of the filenames, and gcc itself does
  41. # care about how the name is spelled on its command-line.
  42. ASRC =
  43. # Optimization level, can be [0, 1, 2, 3, s].
  44. # 0 = turn off optimization. s = optimize for size.
  45. # (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
  46. OPT = s
  47. # Debugging format.
  48. # Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
  49. # AVR (extended) COFF requires stabs, plus an avr-objcopy run.
  50. #DEBUG = stabs
  51. DEBUG = dwarf-2
  52. # List any extra directories to look for include files here.
  53. # Each directory must be seperated by a space.
  54. EXTRAINCDIRS =
  55. # Compiler flag to set the C Standard level.
  56. # c89 - "ANSI" C
  57. # gnu89 - c89 plus GCC extensions
  58. # c99 - ISO C99 standard (not yet fully implemented)
  59. # gnu99 - c99 plus GCC extensions
  60. CSTANDARD = -std=gnu99
  61. # Place -D or -U options here
  62. CDEFS =
  63. # Place -I options here
  64. CINCS =
  65. # Compiler flags.
  66. # -g*: generate debugging information
  67. # -O*: optimization level
  68. # -f...: tuning, see GCC manual and avr-libc documentation
  69. # -Wall...: warning level
  70. # -Wa,...: tell GCC to pass this to the assembler.
  71. # -adhlns...: create assembler listing
  72. CFLAGS = -g$(DEBUG)
  73. CFLAGS += $(CDEFS) $(CINCS)
  74. CFLAGS += -O$(OPT)
  75. CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
  76. CFLAGS += -Wall -Wstrict-prototypes
  77. CFLAGS += -Wa,-adhlns=$(<:.c=.lst)
  78. CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
  79. CFLAGS += $(CSTANDARD)
  80. CFLAGS += -DF_CPU=$(F_CPU)
  81. # Assembler flags.
  82. # -Wa,...: tell GCC to pass this to the assembler.
  83. # -ahlms: create listing
  84. # -gstabs: have the assembler create line number information; note that
  85. # for use in COFF files, additional information about filenames
  86. # and function names needs to be present in the assembler source
  87. # files -- see avr-libc docs [FIXME: not yet described there]
  88. ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
  89. ASFLAGS += -DF_CPU=$(F_CPU)
  90. #Additional libraries.
  91. # Minimalistic printf version
  92. PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
  93. # Floating point printf version (requires MATH_LIB = -lm below)
  94. PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
  95. PRINTF_LIB =
  96. # Minimalistic scanf version
  97. SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
  98. # Floating point + %[ scanf version (requires MATH_LIB = -lm below)
  99. SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
  100. SCANF_LIB =
  101. MATH_LIB = -lm
  102. # External memory options
  103. # 64 KB of external RAM, starting after internal RAM (ATmega128!),
  104. # used for variables (.data/.bss) and heap (malloc()).
  105. #EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
  106. # 64 KB of external RAM, starting after internal RAM (ATmega128!),
  107. # only used for heap (malloc()).
  108. #EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff
  109. EXTMEMOPTS =
  110. # Linker flags.
  111. # -Wl,...: tell GCC to pass this to linker.
  112. # -Map: create map file
  113. # --cref: add cross reference to map file
  114. LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
  115. LDFLAGS += $(EXTMEMOPTS)
  116. LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
  117. # Programming support using avrdude. Settings and variables.
  118. # Programming hardware: alf avr910 avrisp bascom bsd
  119. # dt006 pavr picoweb pony-stk200 sp12 stk200 stk500
  120. #
  121. # Type: avrdude -c ?
  122. # to get a full listing.
  123. #
  124. AVRDUDE_PROGRAMMER = stk500
  125. # com1 = serial port. Use lpt1 to connect to parallel port.
  126. AVRDUDE_PORT = com1 # programmer connected to serial device
  127. AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
  128. #AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
  129. # Uncomment the following if you want avrdude's erase cycle counter.
  130. # Note that this counter needs to be initialized first using -Yn,
  131. # see avrdude manual.
  132. #AVRDUDE_ERASE_COUNTER = -y
  133. # Uncomment the following if you do /not/ wish a verification to be
  134. # performed after programming the device.
  135. #AVRDUDE_NO_VERIFY = -V
  136. # Increase verbosity level. Please use this when submitting bug
  137. # reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
  138. # to submit bug reports.
  139. #AVRDUDE_VERBOSE = -v -v
  140. AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
  141. AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
  142. AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
  143. AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)
  144. # ---------------------------------------------------------------------------
  145. # Define directories, if needed.
  146. DIRAVR = /usr/local/CrossPack-AVR
  147. DIRAVRBIN = $(DIRAVR)/bin
  148. DIRAVRUTILS = $(DIRAVR)/bin
  149. DIRINC = .
  150. DIRLIB = $(DIRAVR)/lib
  151. # Define programs and commands.
  152. SHELL = bash
  153. CC = avr-gcc
  154. OBJCOPY = avr-objcopy
  155. OBJDUMP = avr-objdump
  156. SIZE = avr-size
  157. NM = avr-nm
  158. AVRDUDE = avrdude
  159. REMOVE = rm -f
  160. COPY = cp
  161. # Define Messages
  162. # English
  163. MSG_ERRORS_NONE = Errors: none
  164. MSG_BEGIN = -------- begin --------
  165. MSG_END = -------- end --------
  166. MSG_SIZE_BEFORE = Size before:
  167. MSG_SIZE_AFTER = Size after:
  168. MSG_COFF = Converting to AVR COFF:
  169. MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
  170. MSG_FLASH = Creating load file for Flash:
  171. MSG_EEPROM = Creating load file for EEPROM:
  172. MSG_EXTENDED_LISTING = Creating Extended Listing:
  173. MSG_SYMBOL_TABLE = Creating Symbol Table:
  174. MSG_LINKING = Linking:
  175. MSG_COMPILING = Compiling:
  176. MSG_ASSEMBLING = Assembling:
  177. MSG_CLEANING = Cleaning project:
  178. # Define all object files.
  179. OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
  180. # Define all listing files.
  181. LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)
  182. # Compiler flags to generate dependency files.
  183. ### GENDEPFLAGS = -Wp,-M,-MP,-MT,$(*F).o,-MF,.dep/$(@F).d
  184. GENDEPFLAGS = -MD -MP -MF .dep/$(@F).d
  185. # Combine all necessary flags and optional flags.
  186. # Add target processor to flags.
  187. ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)
  188. ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
  189. # Default target.
  190. all: begin gccversion sizebefore build sizeafter finished end
  191. build: elf hex eep lss sym
  192. elf: $(TARGET).elf
  193. hex: $(TARGET).hex
  194. eep: $(TARGET).eep
  195. lss: $(TARGET).lss
  196. sym: $(TARGET).sym
  197. # Eye candy.
  198. # AVR Studio 3.x does not check make's exit code but relies on
  199. # the following magic strings to be generated by the compile job.
  200. begin:
  201. @echo
  202. @echo $(MSG_BEGIN)
  203. finished:
  204. @echo $(MSG_ERRORS_NONE)
  205. end:
  206. @echo $(MSG_END)
  207. @echo
  208. # Display size of file.
  209. HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
  210. ELFSIZE = $(SIZE) -A $(TARGET).elf
  211. sizebefore:
  212. @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fi
  213. sizeafter:
  214. @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); echo; fi
  215. # Display compiler version information.
  216. gccversion :
  217. @$(CC) --version
  218. # Program the device.
  219. program: $(TARGET).hex $(TARGET).eep
  220. $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
  221. # Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
  222. COFFCONVERT=$(OBJCOPY) --debugging \
  223. --change-section-address .data-0x800000 \
  224. --change-section-address .bss-0x800000 \
  225. --change-section-address .noinit-0x800000 \
  226. --change-section-address .eeprom-0x810000
  227. coff: $(TARGET).elf
  228. @echo
  229. @echo $(MSG_COFF) $(TARGET).cof
  230. $(COFFCONVERT) -O coff-avr $< $(TARGET).cof
  231. extcoff: $(TARGET).elf
  232. @echo
  233. @echo $(MSG_EXTENDED_COFF) $(TARGET).cof
  234. $(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
  235. # Create final output files (.hex, .eep) from ELF output file.
  236. %.hex: %.elf
  237. @echo
  238. @echo $(MSG_FLASH) $@
  239. $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
  240. %.eep: %.elf
  241. @echo
  242. @echo $(MSG_EEPROM) $@
  243. -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
  244. --change-section-lma .eeprom=0 -O $(FORMAT) $< $@
  245. # Create extended listing file from ELF output file.
  246. %.lss: %.elf
  247. @echo
  248. @echo $(MSG_EXTENDED_LISTING) $@
  249. $(OBJDUMP) -h -S $< > $@
  250. # Create a symbol table from ELF output file.
  251. %.sym: %.elf
  252. @echo
  253. @echo $(MSG_SYMBOL_TABLE) $@
  254. $(NM) -n $< > $@
  255. # Link: create ELF output file from object files.
  256. .SECONDARY : $(TARGET).elf
  257. .PRECIOUS : $(OBJ)
  258. %.elf: $(OBJ)
  259. @echo
  260. @echo $(MSG_LINKING) $@
  261. $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
  262. # Compile: create object files from C source files.
  263. %.o : %.c
  264. @echo
  265. @echo $(MSG_COMPILING) $<
  266. $(CC) -c $(ALL_CFLAGS) $< -o $@
  267. # Compile: create assembler files from C source files.
  268. %.s : %.c
  269. $(CC) -S $(ALL_CFLAGS) $< -o $@
  270. # Assemble: create object files from assembler source files.
  271. %.o : %.S
  272. @echo
  273. @echo $(MSG_ASSEMBLING) $<
  274. $(CC) -c $(ALL_ASFLAGS) $< -o $@
  275. # Target: clean project.
  276. clean: begin clean_list finished end
  277. clean_list :
  278. @echo
  279. @echo $(MSG_CLEANING)
  280. $(REMOVE) $(TARGET).hex
  281. $(REMOVE) $(TARGET).eep
  282. $(REMOVE) $(TARGET).obj
  283. $(REMOVE) $(TARGET).cof
  284. $(REMOVE) $(TARGET).elf
  285. $(REMOVE) $(TARGET).map
  286. $(REMOVE) $(TARGET).obj
  287. $(REMOVE) $(TARGET).a90
  288. $(REMOVE) $(TARGET).sym
  289. $(REMOVE) $(TARGET).lnk
  290. $(REMOVE) $(TARGET).lss
  291. $(REMOVE) $(OBJ)
  292. $(REMOVE) $(LST)
  293. $(REMOVE) $(SRC:.c=.s)
  294. $(REMOVE) $(SRC:.c=.d)
  295. $(REMOVE) .dep/*
  296. # Include the dependency files.
  297. -include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
  298. # Listing of phony targets.
  299. .PHONY : all begin finish end sizebefore sizeafter gccversion \
  300. build elf hex eep lss sym coff extcoff \
  301. clean clean_list program