From 9f32dfdb31d37ce1413fa24d1095690ce7ca030b Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Sat, 9 Apr 2022 13:48:35 +0200
Subject: Add src/app for attiny

---
 src/app/Makefile | 107 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 src/app/Makefile

(limited to 'src/app/Makefile')

diff --git a/src/app/Makefile b/src/app/Makefile
new file mode 100644
index 0000000..8fe6809
--- /dev/null
+++ b/src/app/Makefile
@@ -0,0 +1,107 @@
+# Location of build tools
+CC=avr-gcc
+OBJCOPY=avr-objcopy
+SIZE=avr-size
+AVRDUDE=avrdude
+AVRDUDE_FLAGS=-B 100kHz
+
+# Modify this to the device name of the UART used for AVRDUDE
+AVRDUDE_DEV=usb
+PROG = dragon_isp
+
+# Modify this to the CPU you are using
+PART=attiny25
+AVRDUDE_PART=t25
+
+# Cpu frequency
+# is 3.579545MHz / 8 = 447443.125
+#F_CPU=447443UL
+F_CPU="(3579545UL/8)"
+
+# Directory for built objects
+BUILD_DIR=build
+
+# Port/application object files
+APP_NAME = app
+
+# Application object files
+APP_OBJECTS = main.o
+
+# Library object files to build and use
+LIB_OBJECTS =
+LIB_ASM_OBJECTS =
+LIB_DIR = ../lib
+
+# Collection of built objects
+ALL_OBJECTS = $(LIB_OBJECTS) $(LIB_ASM_OBJECTS) $(APP_OBJECTS)
+BUILT_OBJECTS = $(patsubst %,$(BUILD_DIR)/%,$(ALL_OBJECTS))
+
+# Target application filenames (.elf and .hex) for each application object
+APP_ELF = $(APP_NAME).elf
+APP_HEX = $(APP_NAME).hex
+
+# Search build/output directory for dependencies
+vpath %.o ./$(BUILD_DIR)
+vpath %.elf ./$(BUILD_DIR)
+vpath %.hex ./$(BUILD_DIR)
+
+# GCC flags
+CFLAGS=-g -mmcu=$(PART) -O1 -Wall -Werror -DF_CPU=$(F_CPU)
+INCLUDES=-I. -I$(LIB_DIR)
+
+
+#################
+# Build targets #
+#################
+
+# All applications
+all: $(BUILD_DIR) $(APP_HEX) Makefile
+
+# Make build/output directory
+$(BUILD_DIR):
+	mkdir $(BUILD_DIR)
+
+# Application HEX files
+$(APP_HEX): %.hex: %.elf
+	@echo Building $@
+	$(OBJCOPY) -j .text -j .data -O ihex $(BUILD_DIR)/$< $(BUILD_DIR)/$@
+
+# Application ELF files
+$(APP_ELF): %.elf: $(LIB_OBJECTS) $(LIB_ASM_OBJECTS) $(APP_OBJECTS)
+	$(CC) $(CFLAGS) $(BUILT_OBJECTS) --output $(BUILD_DIR)/$@ -Wl,-Map,$(BUILD_DIR)/$(basename $@).map
+
+# Application objects builder
+$(APP_OBJECTS): %.o: %.c
+	$(CC) -c $(CFLAGS) $(INCLUDES) $< -o $(BUILD_DIR)/$(notdir $@)
+
+# Application C objects builder
+$(LIB_OBJECTS): %.o: $(LIB_DIR)/%.c
+	$(CC) -c $(CFLAGS) $(INCLUDES) $< -o $(BUILD_DIR)/$(notdir $@)
+
+# Application asm objects builder
+$(LIB_ASM_OBJECTS): %.o: $(LIB_DIR)/%.s
+	$(CC) -c $(CFLAGS) -x assembler-with-cpp $(INCLUDES) $< -o $(BUILD_DIR)/$(notdir $@)
+
+# .lst file builder
+%.lst: %.c
+	$(CC) $(CFLAGS) $(INCLUDES) -Wa,-al $< > $@
+
+# Clean
+clean:
+	rm -f *.o *.elf *.map *.hex *.bin *.lst
+	rm -rf doxygen-avr
+	rm -rf build
+
+# Send to device
+program: $(APP_HEX)
+	$(SIZE) -C $(BUILD_DIR)/$(APP_ELF)
+	$(AVRDUDE) $(AVRDUDE_FLAGS) -c $(PROG) -P $(AVRDUDE_DEV) -p $(AVRDUDE_PART) -U flash:w:$(BUILD_DIR)/$(APP_HEX) -v
+
+fuse:
+	$(AVRDUDE) $(AVRDUDE_FLAGS) -c $(PROG) -P $(AVRDUDE_DEV) -p $(AVRDUDE_PART) -U lfuse:w:0x60:m -U hfuse:w:0xdc:m -U efuse:w:0xff:m -v
+
+interactive:
+	$(AVRDUDE) $(AVRDUDE_FLAGS) -c $(PROG) -P $(AVRDUDE_DEV) -p $(AVRDUDE_PART) -t -v
+
+doxygen:
+	doxygen ./Doxyfile
-- 
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