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| author | David Phillips <david@yeah.nah.nz> | 2020-12-13 16:35:58 +1300 |
|---|---|---|
| committer | David Phillips <david@yeah.nah.nz> | 2020-12-13 20:42:33 +1300 |
| commit | 7e26f31e221665ee059b02fc6beda025d39d6e75 (patch) | |
| tree | 1a5f66e12680778b001f3cb1d2c49b0f2ce0f04c /Makefile | |
| download | altimeter-7e26f31e221665ee059b02fc6beda025d39d6e75.tar.xz | |
Initial prototype
This patch adds a skeleton of AVR code for a "simulator" target (atmega2560)
and for the real intended hardware target (atmega32u4). The simulator target
is one that is supported by the QEMU AVR emulator, while the 32u4 is currently
not.
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..879452f --- /dev/null +++ b/Makefile @@ -0,0 +1,54 @@ +CC ?= avr-gcc +OBJCOPY ?= avr-objcopy +AVRDUDE ?= avrdude +QEMU_AVR ?= qemu-system-avr + +MCU ?= atmega32u4 +SIM_MCU ?= atmega2560 +CFLAGS += -DF_CPU=16000000UL -mmcu=$(MCU) -O3 +SIM_CFLAGS += -DF_CPU=16000000UL -mmcu=$(SIM_MCU) -g3 -gdwarf-2 + +$(shell mkdir -p build/{real,sim}) + +all: build/altimeter_sim.elf build/altimeter.hex + +emu: build/altimeter_sim.elf + $(QEMU_AVR) -s -S -nographic -machine mega2560 -bios $< + +flash: build/altimeter.hex + $(AVRDUDE) -F -V -c avr109 -p $(MCU) -P $(PORT) -b 115200 -U flash:w:$< + +clean: + rm -rf build/ + +build/altimeter.elf: \ + build/real/barometer_sim.o \ + build/real/display_sim.o \ + build/real/altimeter.o \ + build/real/util.o + $(CC) -o $@ $^ $(CFLAGS) + +build/altimeter_sim.elf: \ + build/sim/barometer_sim.o \ + build/sim/display_sim.o \ + build/sim/altimeter.o \ + build/sim/util.o + $(CC) -o $@ $^ $(SIM_CFLAGS) + +include config.mk + + +build/sim/%.o: %.c + $(CC) -c -o $@ $^ $(SIM_CFLAGS) + +build/real/%.o: %.c + $(CC) -c -o $@ $^ $(CFLAGS) + +build/%.hex: build/%.elf + $(OBJCOPY) -O ihex -R .eeprom $< $@ + +build/%.elf: + $(CC) -o $@ $^ $(CFLAGS) + + +.PHONY: all emu flash clean |