Import code from old repository from 2018

Old repository: https://github.com/binaryDiv/z80_computer

firmware_src/Makefile

@@ -0,0 +1,75 @@
+################
+# CONFIGURATION
+################
+
+# Compiler and tools
+CC = avr-gcc
+OBJCOPY = avr-objcopy
+
+# Compiler and linker flags
+CFLAGS = -Wall -std=c11 -Os
+LDFLAGS = 
+
+# Target platform and programmer
+GCC_MCU = atmega16a
+AVRDUDE_PARTNO = m16
+AVRDUDE_PROGRAMMER = usbtiny
+
+# Make target and object files
+TARGET = eepprog
+OBJECTS = main.o uart.o eeprom.o protocol.o
+HEADERS = config.h BitIO.h uart.h eeprom.h protocol.h
+
+# Default target (build hex file)
+all: hex
+
+
+################
+# BUILD TARGETS
+################
+
+# Shortcuts for build targets
+hex: $(TARGET).hex
+elf: $(TARGET).elf
+
+# Convert elf binary to ihex format
+$(TARGET).hex: $(TARGET).elf
+	$(OBJCOPY) -O ihex $(TARGET).elf $(TARGET).hex
+
+# Elf binary
+$(TARGET).elf: $(OBJECTS)
+	$(CC) -mmcu=$(GCC_MCU) $(LDFLAGS) -o $(TARGET).elf $(OBJECTS)
+
+# Object files
+%.o: %.c $(HEADERS)
+	$(CC) -mmcu=$(GCC_MCU) $(CFLAGS) -c -o $@ $<
+
+
+##############
+# PROGRAMMING
+##############
+
+# Program controller
+program: writeflash
+
+writeflash: $(TARGET).hex
+	sudo avrdude -p $(AVRDUDE_PARTNO) -c $(AVRDUDE_PROGRAMMER) -U flash:w:$(TARGET).hex
+
+readfuse:
+	sudo avrdude -p $(AVRDUDE_PARTNO) -c $(AVRDUDE_PROGRAMMER) -U lfuse:r:m -U hfuse:r:m
+
+writefuse:
+	sudo avrdude -p $(AVRDUDE_PARTNO) -c $(AVRDUDE_PROGRAMMER) -U lfuse:w:0xef:m -U hfuse:w:0xd9:m
+
+
+################
+# OTHER TARGETS
+################
+
+# Clean generated files
+clean:
+	rm -f $(OBJECTS) $(TARGET).elf $(TARGET).hex
+
+
+.PHONY: all hex elf program writeflash clean
+