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CMakeLists.txt

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+cmake_minimum_required(VERSION 3.24)
+
+set(WITH_MCU OFF)
+set(AVR_MCU "attiny3216")
+
+set(CMAKE_TOOLCHAIN_FILE "${CMAKE_CURRENT_SOURCE_DIR}/cmake/avr-gcc-toolchain.cmake")
+
+project(avr-avc-lan VERSION 1 LANGUAGES C ASM)
+
+include(FetchContent)
+# attiny_atpack_SOURCE_DIR is downloaded/extracted location
+FetchContent_Declare(
+    attiny_atpack
+    URL http://packs.download.atmel.com/Atmel.ATtiny_DFP.2.0.368.atpack
+    URL_HASH SHA512=ee16a8ebecb57bd998a9cd4373368e3d45982cbbc3825e18d1dcac58215db6b9d907ad1ba2020cba9187fed7ba8c6f255a4fa1214e40c7a17ab2d18474f4d079
+    DOWNLOAD_NAME Atmel.ATtiny_DFP.2.0.368.atpack.zip
+)
+FetchContent_MakeAvailable(attiny_atpack)
+
+set(CMAKE_C_STANDARD 17)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+if(CMAKE_BUILD_TYPE MATCHES Release)
+   set(CMAKE_C_FLAGS_RELEASE "-Os")
+endif(CMAKE_BUILD_TYPE MATCHES Release)
+
+if(CMAKE_BUILD_TYPE MATCHES RelWithDebInfo)
+   set(CMAKE_C_FLAGS_RELWITHDEBINFO "-Os -save-temps -g -gdwarf-3 -gstrict-dwarf")
+endif(CMAKE_BUILD_TYPE MATCHES RelWithDebInfo)
+
+if(CMAKE_BUILD_TYPE MATCHES Debug)
+   set(CMAKE_C_FLAGS_DEBUG "-O0 -save-temps -g -gdwarf-3 -gstrict-dwarf")
+endif(CMAKE_BUILD_TYPE MATCHES Debug)
+
+add_avr_executable(sniffer
+    src/sniffer.c
+    src/com232.c
+    src/avclandrv.c
+    src/GlobalDef.c)
+
+target_include_directories(sniffer SYSTEM PUBLIC "${attiny_atpack_SOURCE_DIR}/include")
+target_link_options(sniffer PUBLIC
+    -B "${attiny_atpack_SOURCE_DIR}/gcc/dev/${AVR_MCU}"
+)
+target_compile_definitions(sniffer PRIVATE 
+    F_CPU=16000000L
+)
+target_compile_options(sniffer PRIVATE
+    -B "${attiny_atpack_SOURCE_DIR}/gcc/dev/${AVR_MCU}"
+    --param=min-pagesize=0
+    -ffunction-sections
+    -fdata-sections
+    -fshort-enums
+)
+
+
+