Include firmware git revision in version.

Makefile

@@ -193,7 +193,7 @@ arflags-gnu-y           := $(ARFLAGS)
 asflags-gnu-y           := $(ASFLAGS)
 cflags-gnu-y            := $(CFLAGS)
 cxxflags-gnu-y          := $(CXXFLAGS)
-cppflags-gnu-y          := $(CPPFLAGS)
+cppflags-gnu-y          := $(CPPFLAGS) -D GIT_COMMIT=$(shell cd . && printf "%d" 0x$(shell git rev-parse --short HEAD))
 cpuflags-gnu-y          :=
 dbgflags-gnu-y          := $(DBGFLAGS)
 libflags-gnu-y          := $(foreach LIB,$(LIBS),-l$(LIB))
@@ -325,7 +325,7 @@ ifeq ($(target_type),lib)
 all: $(target) $(project).lss $(project).sym
 else
 ifeq ($(target_type),elf)
-all: prebuild $(target) $(project).lss $(project).sym $(project).hex $(project).bin postbuild
+all: getver prebuild $(target) $(project).lss $(project).sym $(project).hex $(project).bin postbuild
 endif
 endif
 
@@ -497,3 +497,8 @@ dfu: AVRDUDE_FLAGS = -p $(AVRDUDE_DEV) -c flip2 -U application:w:$(TARGET):e
 flash: $(TARGET)
 	avrdude $(AVRDUDE_FLAGS)
 
+# get git version
+getver:
+#	$(eval GIT_COMMIT = $(shell printf "%d" 0x$(shell git rev-parse --short HEAD)))
+	@echo 'GIT_COMMIT = $(GIT_COMMIT)'
+

src/main.c

@@ -86,7 +86,10 @@ read_data:
             break;
             
 		case 'V': //check version
-            printf("V%u.%u\n", BOARD_VER_MAJOR, BOARD_VER_MINOR);
+            #define STRING2(x) #x
+            #define STRING(x) STRING2(x)
+            #pragma message "GIT_COMMIT = " STRING(GIT_COMMIT)
+            printf("V%u.%u.%lu\n", BOARD_VER_MAJOR, BOARD_VER_MINOR, GIT_COMMIT);
 			break;
 		
 		default: