TAL_SRC        = ${TAL_HOME}/src/tal
TAL_LCS        = ${TAL_HOME}/lcs

# PRG            = test1
# OBJ            = $(PRG).o

# PRG            = ds3231test
# OBJ            = $(PRG).o  ${TAL_SRC}/i2c.o  ${TAL_SRC}/usart_funcs.o
# F_CPU          = 16000000

PRG            = novoclock
OBJ            = $(PRG).o novowheel.o \
				${TAL_SRC}/usart_funcs.o \
				${TAL_LCS}/avr/io.o novosim.o
#				${TAL_SRC}/i2c.o 
F_CPU          = 16000000

#MCU_TARGET     = atmega8
#MCU_TARGET     = atmega48
#MCU_TARGET     = atmega88
#MCU_TARGET     = atmega168
#MCU_TARGET     = atmega168p
MCU_TARGET     = atmega328p

OPTIMIZE       = -O2
WARNINGS       = -g -Wall -Werror

DEFS           = -I. -I${TAL_HOME}/inc -DF_CPU=${F_CPU}
LIBS           = -lpthread

# You should not have to change anything below here.

CC             = gcc
CPP            = g++ -std=c++20 -Wno-volatile
AS             = gcc

# Override is only needed by avr-lib build system.

override CFLAGS        = $(WARNINGS) $(OPTIMIZE) -DSIMULATION -DMCU_TARGET=$(MCU_TARGET) -I${TAL_HOME}/lcs $(DEFS)
# override ASFLAGS       = -mmcu=$(MCU_TARGET)
override ASFLAGS       =
# override LDFLAGS       = -Wl,-Map,$(PRG).map
override LDFLAGS       =

# all: lines $(PRG).elf lst text eeprom
all: lines $(PRG)

burn: all
	avrdude -c stk500 -P /dev/ttyUSB0 -p $(MCU_TARGET) -U flash:w:$(PRG).srec

usbasp: all
	avrdude -c usbasp -p $(MCU_TARGET) -U flash:w:$(PRG).srec

lines: .PHONY
	yes ''|head
	@echo "checking if environment variable TAL_HOME is set"
	test -n "${TAL_HOME}"

run: all
	./${PRG}

.PHONY:

$(PRG): $(OBJ)
	$(CPP) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)

.c.s:	$<
	$(CC) $(CFLAGS) -S $<

.cpp.o:	$<
	$(CPP) $(CFLAGS) -c $< -o $@

.cpp.s:	$<
	$(CPP) $(CFLAGS) -S $<

clean:
	rm -rf $(OBJ) $(PRG)