Jeff Epler
273bb36d58
this, or something very close to it, did actually set the time once but since then it stopped even synching to the wwvb pps.
36 lines
762 B
Makefile
36 lines
762 B
Makefile
CXX := g++
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CFLAGS := -Os -g -Wall
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MCU := atmega328
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AMCU := m328p
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AVRDUDE := avrdude -p${AMCU} -c arduino -P /dev/ttyUSB0 -b57600
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default: wwvbdecode wwvb.elf
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ifeq ($(shell [ -e /dev/ttyUSB0 ] && echo 1),1)
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default: program-stamp
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endif
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program-stamp: program
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touch program-stamp
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program: wwvb.hex
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${AVRDUDE} -q -q -D -U flash:w:$<:i
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${AVRDUDE} -q -q -D -U eeprom:w:0x75,0x6e,0x73,0x65,0x74,0xd,0xa,0x0:m
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wwvbdecode: wwvbdecode.cc
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$(CXX) $(CFLAGS) -o $@ $<
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AVR-CC := avr-gcc
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AVR-CFLAGS := -ffreestanding -funit-at-a-time -finline-functions-called-once \
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-fno-exceptions -fno-rtti -mmcu=${MCU} -O3 -g
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wwvb.elf: wwvbdecode.cc
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$(AVR-CC) $(AVR-CFLAGS) -o $@ $<
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avr-size $@
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%.hex: %.elf
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avr-objcopy -O ihex -R eeprom $< $@
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# vim:noet:ts=8:sts=8:sw=8
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