started on the firmware, added BOM

[nixiedisp] / fw / Makefile

diff --git a/fw/Makefile b/fw/Makefile
new file mode 100644 (file)
index 0000000..6e295ac
--- /dev/null
+++ b/fw/Makefile
@@ -0,0 +1,41 @@
+src = $(wildcard src/*.c)
+obj = $(src:.c=.o)
+bin = nixiedisp
+hex = $(bin).hex
+eep = $(bin).eep
+
+mcu_gcc = atmega328p
+mcu_dude = m328p
+
+CC = avr-gcc
+OBJCOPY = avr-objcopy
+
+CFLAGS = -Os -pedantic -Wall -mmcu=$(mcu_gcc) -DF_CPU=14745600
+LDFLAGS = -Wl,-Map,$(bin).map -mmcu=$(mcu_gcc) -lprintf_min
+
+.PHONY: all
+all: $(hex) $(eep)
+
+$(bin): $(obj)
+       $(CC) -o $@ $(obj) $(LDFLAGS)
+
+$(hex): $(bin)
+       $(OBJCOPY) -j .text -j .data -O ihex -R .eeprom $< $@
+
+$(bin).bin: $(bin)
+       $(OBJCOPY) -j .text -j .data -O binary -R .eeprom $< $@
+
+$(eep): $(bin)
+       $(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
+
+.PHONY: fuses
+fuses:
+       avrdude -c usbtiny -p $(mcu_dude) -U lfuse:w:0xe6:m -U hfuse:w:0xdf:m -U efuse:w:0xf9:m
+
+.PHONY: program
+program: $(hex)
+       avrdude -c usbtiny -p $(mcu_dude) -e -U flash:w:$(hex)
+
+.PHONY: clean
+clean:
+       rm -f $(bin) $(obj) $(hex) $(eep) $(bin).map