add Makefile and main.c stub (with display test code)

1 files changed, 45 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..aea031d
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,45 @@
+MCU ?= attiny88
+AVRDUDE_PROGRAMMER ?= usbasp
+
+AVRCC ?= avr-gcc
+AVRFLASH ?= avrdude
+AVRNM ?= avr-nm
+AVROBJCOPY ?= avr-objcopy
+AVROBJDUMP ?= avr-objdump
+
+CFLAGS += -mmcu=attiny88 -DF_CPU=1000000UL
+# CFLAGS += -gdwarf-2
+CFLAGS += -I. -std=gnu99 -Os -Wall -Wextra -pedantic
+CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
+CFLAGS += -fwhole-program -flto -mstrict-X
+
+#AVRFLAGS += -U lfuse:w:0xe4:m -U hfuse:w:0xdf:m -U efuse:w:0xff:m
+AVRFLAGS += -U flash:w:main.hex
+#AVRFLAGS += -U eeprom:w:main.eep
+
+%.hex: %.elf
+	${AVROBJCOPY} -O ihex -R .eeprom $< $@
+
+%.eep: %.elf
+	${AVROBJCOPY} -j .eeprom --set-section-flags=.eeprom="alloc,load" \
+	--change-section-lma .eeprom=0 -O ihex $< $@
+
+main.elf: main.c
+	${AVRCC} ${CFLAGS} -o $@ ${@:.elf=.c} -Wl,-Map=main.map,--cref
+	avr-size -d $@
+
+program: main.hex #main.eep
+	${AVRFLASH} -p ${MCU} -c ${AVRDUDE_PROGRAMMER} ${AVRFLAGS}
+
+secsize: main.elf
+	${AVROBJDUMP} -hw -j.text -j.bss -j.data main.elf
+
+funsize: main.elf
+	${AVRNM} --print-size --size-sort main.elf
+
+.PHONY: program secsize funsize
+
+# Listing of phony targets.
+.PHONY : all begin finish end sizebefore sizeafter gccversion \
+build elf hex eep lss sym coff extcoff \
+clean clean_list program debug gdb-config