inital dump

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.13)
+
+# Project
+project(lezyne-rear-light-firmware C)
+
+# MCU and clock
+set(MCU attiny202)
+set(F_CPU 5000000UL) # 5 MHz
+
+# Toolchain executables
+set(CMAKE_SYSTEM_NAME Generic)
+set(CMAKE_C_COMPILER avr-gcc)
+set(OBJCOPY avr-objcopy)
+
+# Compiler flags
+set(CMAKE_C_FLAGS "-mmcu=${MCU} -DF_CPU=${F_CPU} -Os -Wall")
+
+# Sources
+add_executable(main.elf main.c)
+
+# HEX file
+add_custom_command(
+    OUTPUT main.hex
+    COMMAND ${OBJCOPY} -O ihex -R .eeprom main.elf main.hex
+    DEPENDS main.elf
+)
+
+# BIN file
+add_custom_command(
+    OUTPUT main.bin
+    COMMAND ${OBJCOPY} -O binary -R .eeprom main.elf main.bin
+    DEPENDS main.elf
+)
+
+# Targets
+add_custom_target(hex ALL DEPENDS main.hex)
+add_custom_target(bin ALL DEPENDS main.bin)