commit dbe774272bd096dfc4adc8d6b4ce7e9b9bd772c7
Author: busti <mbust@live.de>
Date:   Sun Oct 14 19:32:59 2018 +0200

    initial commit

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..37cde37
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,186 @@
+#==== Main Options =============================================================
+
+MCU = atmega328p
+F_CPU = 16000000
+LFUSE = 0xf1
+HFUSE = 0xdf
+
+TARGET = main
+SRC = $(TARGET).cpp
+
+OBJDIR = obj
+BACKUPDIR = backup
+
+
+
+#==== Compile Options ==========================================================
+
+OPT = s
+
+CFLAGS = -mmcu=$(MCU) -I.
+CFLAGS += -DF_CPU=$(F_CPU)UL
+CFLAGS += -O$(OPT)
+#CFLAGS += -mint8
+#CFLAGS += -mshort-calls
+CFLAGS += -funsigned-char
+CFLAGS += -funsigned-bitfields
+CFLAGS += -fpack-struct
+CFLAGS += -fshort-enums
+#CFLAGS += -fno-unit-at-a-time
+CFLAGS += -Wall
+CFLAGS += -Wstrict-prototypes
+hCFLAGS += -Wundef
+#CFLAGS += -Wunreachable-code
+#CFLAGS += -Wsign-compare
+CFLAGS += -std=gnu99
+#CFLAGS += -Wa,-adhlns=$(<:%.c=$(OBJDIR)/%.lst)
+#CFLAGS += -flto
+
+#LDFLAGS =
+
+
+
+#==== Programming Options (avrdude) ============================================
+
+AVRDUDE_PROGRAMMER = arduino
+AVRDUDE_PORT = /dev/ttyS4
+AVRDUDE_BAUD = 19200
+
+#AVRDUDE_NO_VERIFY = -V
+
+AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -b $(AVRDUDE_BAUD) -c $(AVRDUDE_PROGRAMMER) $(AVRDUDE_NO_VERIFY)
+
+
+
+#==== Targets ==================================================================
+
+CC = avr-g++
+OBJCOPY = avr-objcopy
+OBJDUMP = avr-objdump
+AVRDUDE = avrdude
+AVRSIZE = avr-size
+REMOVE = rm -f
+REMOVEDIR = rm -rf
+TAIL = tail
+AWK = awk
+
+OBJ = $(SRC:%.c=$(OBJDIR)/%.o)
+
+AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
+AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
+
+MEMORYTYPES = flash eeprom fuse lfuse hfuse efuse boot calibration lock signature application apptable prodsig usersig
+
+
+all: build
+
+
+help:
+	@echo 'Basic targets:'
+	@echo '  build       Create all files.'
+	@echo '  clean       Remove files created by make.'
+	@echo '  size        Show the size of each section in the .elf file.'
+	@echo
+	@echo 'Create files:'
+	@echo '  elf         Create binary .elf file.'
+	@echo '  hex         Create .hex file containing .text and .data sections.'
+	@echo '  eep         Create .eep file with the EEPROM content.'
+	@echo '  lss         Create .lss file with a listing of the program.'
+	@echo
+	@echo 'Flashing:'
+	@echo '  program     Write flash and EEPROM.'
+	@echo '  flash       Write only flash.'
+	@echo '  eeprom      Write only EEPROM.'
+	@echo '  backup      Backup MCU content to "$(BACKUPDIR)". Available memory types:'
+	@echo '              $(MEMORYTYPES)'
+	@echo
+	@echo 'Fuses:'
+	@echo '  readfuses   Read fuses from MCU.'
+	@echo '  writefuses  Write fuses to MCU using .fuse section.'
+	@echo '  printfuses  Print fuses from .fuse section.'
+
+
+build: elf hex eep lss size
+
+
+elf: $(TARGET).elf
+hex: $(TARGET).hex
+eep: $(TARGET).eep
+lss: $(TARGET).lss
+
+
+program: flash eeprom
+
+
+flash: $(TARGET).hex
+	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH)
+
+
+eeprom: $(TARGET).eep
+	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_EEPROM)
+
+
+readfuses:
+	$(AVRDUDE) $(AVRDUDE_FLAGS) -U lfuse:r:-:i -U hfuse:r:-:i
+
+
+writefuses:
+	$(AVRDUDE) $(AVRDUDE_FLAGS) -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m
+
+
+#writefuses: FUSES = $(shell $(OBJDUMP) -s --section=.fuse $(TARGET).elf | tail -1 | awk '{print substr($$2,1,2),substr($$2,3,2),substr($$2,5,2)}')
+#writefuses: $(TARGET).elf
+#	$(AVRDUDE) $(AVRDUDE_FLAGS) \
+#	$(if $(word 1,$(FUSES)),-U lfuse:w:0x$(word 1,$(FUSES)):m) \
+#	$(if $(word 2,$(FUSES)),-U hfuse:w:0x$(word 2,$(FUSES)):m) \
+#	$(if $(word 3,$(FUSES)),-U efuse:w:0x$(word 3,$(FUSES)):m)
+
+
+printfuses: FUSES = $(shell $(OBJDUMP) -s --section=.fuse $(TARGET).elf | tail -1 | awk '{print substr($$2,1,2),substr($$2,3,2),substr($$2,5,2)}')
+printfuses: $(TARGET).elf
+	@echo 'FUSES = $(FUSES)'
+
+
+%.hex: %.elf
+	$(OBJCOPY) -O ihex -j .text -j .data $< $@
+
+
+%.eep: %.elf
+	-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 -O ihex $< $@
+
+
+%.lss: %.elf
+	$(OBJDUMP) -h -S $< > $@
+
+
+.SECONDARY: $(TARGET).elf
+.PRECIOUS: $(OBJ)
+%.elf: $(OBJ)
+	$(CC) $(CFLAGS) $^ --output $@ $(LDFLAGS)
+
+
+$(OBJDIR)/%.o: %.c
+	$(shell mkdir -p $(OBJDIR) 2>/dev/null)
+	$(CC) -c $(CFLAGS) $< -o $@
+
+
+size: $(TARGET).elf
+	$(AVRSIZE) -A $(TARGET).elf
+
+
+clean:
+	$(REMOVE) "$(TARGET).hex"
+	$(REMOVE) "$(TARGET).eep"
+	$(REMOVE) "$(TARGET).elf"
+	$(REMOVE) "$(TARGET).lss"
+	$(REMOVEDIR) "$(OBJDIR)"
+
+
+backup:
+	$(shell mkdir -p $(BACKUPDIR) 2>/dev/null)
+	@for memory in $(MEMORYTYPES); do \
+	    $(AVRDUDE) $(AVRDUDE_FLAGS) -U $$memory:r:$(BACKUPDIR)/$(MCU).$$memory.hex:i; \
+	done
+
+
+.PHONY: all size build elf hex eep lss clean program flash eeprom readfuses writefuses printfuses backup help
diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..262b740
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,3 @@
+int main() {
+	
+}