diff --git a/.gitignore b/.gitignore
index ad7b942..685facd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 bootloader/build/*
 lark1fq/build/*
 test/build/*
+tools/*.exe
+tools/*.xls
 .vscode/*
-
diff --git a/bootloader/CMakeLists.txt b/bootloader/CMakeLists.txt
index a1d8ed3..e32c9fc 100755
--- a/bootloader/CMakeLists.txt
+++ b/bootloader/CMakeLists.txt
@@ -14,10 +14,31 @@ set(CMAKE_AR "${TOOLCHAIN}ar")
 set(CMAKE_RANLIB "${TOOLCHAIN}ranlib")
 set(LINKER_SCRIPT "${CMAKE_CURRENT_SOURCE_DIR}/flash.ld")
 
-set(MCU_FLAGS "-mcpu=cortex-m4 -mthumb -g -O2 -Wall -nostartfiles -mfloat-abi=hard -mfpu=vfpv4-d16 -fdata-sections")
-set(CMAKE_C_FLAGS "${MCU_FLAGS}")
-set(CMAKE_ASM_FLAGS "${MCU_FLAGS}")
-set(CMAKE_EXE_LINKER_FLAGS "${MCU_FLAGS} -T${LINKER_SCRIPT} -Wl,-Map=bootloader.map")
+set(CMAKE_C_FLAGS "                            \
+-mcpu=cortex-m4                                \
+-mthumb                                        \
+-g3                                            \
+-O2                                            \
+-Wall                                          \
+-nostartfiles                                  \
+-mfloat-abi=hard                               \
+-mfpu=vfpv4-d16                                \
+-ffunction-sections                            \
+-fdata-sections                                \
+")
+
+set(CMAKE_ASM_FLAGS "${CMAKE_C_FLAGS}")
+
+set(CMAKE_EXE_LINKER_FLAGS "                   \
+-ffunction-sections                            \
+-fdata-sections                                \
+-Wl,--gc-sections                              \
+-T${LINKER_SCRIPT}                             \
+-Wl,-Map=${PROJ_NAME}.map                      \
+--specs=nano.specs                             \
+-Wl,--print-memory-usage                       \
+-Wl,--print-output-format                      \
+")
 
 add_definitions(-DSTM32F40_41xxx)
 add_definitions(-DUSE_STDPERIPH_DRIVER)
@@ -37,5 +58,24 @@ target_link_libraries(${PROJ_NAME}.elf src)
 add_custom_command(TARGET ${PROJ_NAME}.elf POST_BUILD
     COMMAND ${CMAKE_OBJCOPY} -Obinary $<TARGET_FILE:${PROJ_NAME}.elf> ${BIN_FILE}
     COMMAND ${CMAKE_OBJDUMP} -d -S $<TARGET_FILE:${PROJ_NAME}.elf> >${ASM_FILE}
-    COMMENT "Generate ${BIN_FILE}\r\n"
+    # COMMENT "Generate ${BIN_FILE}\r\n"
+    COMMAND size ${PROJ_NAME}.elf
+    COMMAND echo "Calculating SHA-256 checksum for ${BIN_FILE}:"
+    COMMAND sha256sum ${BIN_FILE}
 )
+
+# get git tag
+execute_process(
+    COMMAND git describe --abbrev=40 --tags --dirty --always
+    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+    OUTPUT_VARIABLE GIT_TAG
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+    ERROR_QUIET
+)
+if(GIT_TAG)
+    set(PROJECT_SDK_VERSION ${GIT_TAG})
+else()
+    message(WARNING "No Valid version info found for SDK!")
+    set(PROJECT_SDK_VERSION "version-unknown-panic")
+endif()
+message(STATUS "Project SDK Version: ${PROJECT_SDK_VERSION}")
diff --git a/bootloader/Makefile b/bootloader/Makefile
new file mode 100644
index 0000000..6c57e27
--- /dev/null
+++ b/bootloader/Makefile
@@ -0,0 +1,18 @@
+CMAKE = cmake # use user cmake
+cmake_generator = "Unix Makefiles"
+RM = $(CMAKE) -E remove_directory
+MAKEFLAGS += --no-print-directory
+
+TOOLCHAIN ?= arm-none-eabi-
+
+#cmake definition config
+cmake_definition+= -DTOOLCHAIN=${TOOLCHAIN}
+
+build:Makefile
+	$(CMAKE) -S . -B build -G $(cmake_generator) $(cmake_definition)
+	$(MAKE) -C build -j
+
+clean::
+	$(RM) build
+
+.PHONY:build clean
diff --git a/bootloader/flash.ld b/bootloader/flash.ld
index aeb029e..6dbb96d 100755
--- a/bootloader/flash.ld
+++ b/bootloader/flash.ld
@@ -1,14 +1,15 @@
 ENTRY(Reset_Handler)
 
+StackSize = 0x4000; /* 16KB */
+
 MEMORY
 {
     FLASH (rx) :ORIGIN = 0x08000000, LENGTH = 128K
     RAM (xrw)  :ORIGIN = 0x20000000, LENGTH = 112K
-    CCM (rw)   :ORIGIN = 0x10000000, LENGTH = 48K
-    CCM_STACK (rw) :ORIGIN = 0x1000C000, LENGTH = 16K
+    CCM (rw)   :ORIGIN = 0x10000000, LENGTH = 64K - StackSize
 }
 
-_stack_top = ORIGIN(CCM_STACK) + LENGTH(CCM_STACK);
+_stack_top = ORIGIN(CCM) + LENGTH(CCM) + StackSize;
 
 SECTIONS
 {
diff --git a/lark1fq/CMakeLists.txt b/lark1fq/CMakeLists.txt
index 329ed19..e47c1b3 100755
--- a/lark1fq/CMakeLists.txt
+++ b/lark1fq/CMakeLists.txt
@@ -14,10 +14,31 @@ set(CMAKE_AR "${TOOLCHAIN}ar")
 set(CMAKE_RANLIB "${TOOLCHAIN}ranlib")
 set(LINKER_SCRIPT "${CMAKE_CURRENT_SOURCE_DIR}/flash.ld")
 
-set(MCU_FLAGS "-mcpu=cortex-m4 -mthumb -g -O2 -Wall -nostartfiles -mfloat-abi=hard -mfpu=vfpv4-d16 -ffunction-sections -fdata-sections")
-set(CMAKE_C_FLAGS "${MCU_FLAGS}")
-set(CMAKE_ASM_FLAGS "${MCU_FLAGS}")
-set(CMAKE_EXE_LINKER_FLAGS "${MCU_FLAGS} -T${LINKER_SCRIPT} -Wl,-Map=lark1fq.map")
+set(CMAKE_C_FLAGS "                            \
+-mcpu=cortex-m4                                \
+-mthumb                                        \
+-g3                                            \
+-O2                                            \
+-Wall                                          \
+-nostartfiles                                  \
+-mfloat-abi=hard                               \
+-mfpu=vfpv4-d16                                \
+-ffunction-sections                            \
+-fdata-sections                                \
+")
+
+set(CMAKE_ASM_FLAGS "${CMAKE_C_FLAGS}")
+
+set(CMAKE_EXE_LINKER_FLAGS "                   \
+-ffunction-sections                            \
+-fdata-sections                                \
+-Wl,--gc-sections                              \
+-T${LINKER_SCRIPT}                             \
+-Wl,-Map=${PROJ_NAME}.map                      \
+--specs=nano.specs                             \
+-Wl,--print-memory-usage                       \
+-Wl,--print-output-format                      \
+")
 
 add_definitions(-DSTM32F40_41xxx)
 add_definitions(-DUSE_STDPERIPH_DRIVER)
@@ -40,5 +61,24 @@ target_link_libraries(${PROJ_NAME}.elf m) # math library
 add_custom_command(TARGET ${PROJ_NAME}.elf POST_BUILD
     COMMAND ${CMAKE_OBJCOPY} -Obinary $<TARGET_FILE:${PROJ_NAME}.elf> ${BIN_FILE}
     COMMAND ${CMAKE_OBJDUMP} -d -S $<TARGET_FILE:${PROJ_NAME}.elf> >${ASM_FILE}
-    COMMENT "Generate ${BIN_FILE}\r\n"
+    # COMMENT "Generate ${BIN_FILE}\r\n"
+    COMMAND size ${PROJ_NAME}.elf
+    COMMAND echo "Calculating SHA-256 checksum for ${BIN_FILE}:"
+    COMMAND sha256sum ${BIN_FILE}
 )
+
+# get git tag
+execute_process(
+    COMMAND git describe --abbrev=40 --tags --dirty --always
+    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+    OUTPUT_VARIABLE GIT_TAG
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+    ERROR_QUIET
+)
+if(GIT_TAG)
+    set(PROJECT_SDK_VERSION ${GIT_TAG})
+else()
+    message(WARNING "No Valid version info found for SDK!")
+    set(PROJECT_SDK_VERSION "version-unknown-panic")
+endif()
+message(STATUS "Project SDK Version: ${PROJECT_SDK_VERSION}")
diff --git a/lark1fq/Makefile b/lark1fq/Makefile
new file mode 100644
index 0000000..6c57e27
--- /dev/null
+++ b/lark1fq/Makefile
@@ -0,0 +1,18 @@
+CMAKE = cmake # use user cmake
+cmake_generator = "Unix Makefiles"
+RM = $(CMAKE) -E remove_directory
+MAKEFLAGS += --no-print-directory
+
+TOOLCHAIN ?= arm-none-eabi-
+
+#cmake definition config
+cmake_definition+= -DTOOLCHAIN=${TOOLCHAIN}
+
+build:Makefile
+	$(CMAKE) -S . -B build -G $(cmake_generator) $(cmake_definition)
+	$(MAKE) -C build -j
+
+clean::
+	$(RM) build
+
+.PHONY:build clean
diff --git a/lark1fq/flash.ld b/lark1fq/flash.ld
index b7736c5..0022282 100755
--- a/lark1fq/flash.ld
+++ b/lark1fq/flash.ld
@@ -1,14 +1,15 @@
 ENTRY(Reset_Handler)
 
+StackSize = 0x4000; /* 16KB */
+
 MEMORY
 {
     FLASH (rx) :ORIGIN = 0x08020000, LENGTH = 384K
     RAM (xrw)  :ORIGIN = 0x20000000, LENGTH = 112K
-    CCM (rw)   :ORIGIN = 0x10000000, LENGTH = 48K
-    CCM_STACK (rw) :ORIGIN = 0x1000C000, LENGTH = 16K
+    CCM (rw)   :ORIGIN = 0x10000000, LENGTH = 64K - StackSize
 }
 
-_stack_top = ORIGIN(CCM_STACK) + LENGTH(CCM_STACK);
+_stack_top = ORIGIN(CCM) + LENGTH(CCM) + StackSize;
 
 SECTIONS
 {