forked from platformio/platformio-core
142 lines
3.1 KiB
Python
142 lines
3.1 KiB
Python
# Copyright (C) Ivan Kravets <me@ikravets.com>
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# See LICENSE for details.
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"""
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Builder for STMicroelectronics
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STM32 Series ARM microcontrollers.
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"""
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from os.path import join
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from SCons.Script import (COMMAND_LINE_TARGETS, AlwaysBuild, Builder, Default,
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DefaultEnvironment)
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env = DefaultEnvironment()
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env.Replace(
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AR="arm-none-eabi-ar",
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AS="arm-none-eabi-gcc",
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CC="arm-none-eabi-gcc",
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CXX="arm-none-eabi-g++",
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OBJCOPY="arm-none-eabi-objcopy",
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RANLIB="arm-none-eabi-ranlib",
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ARFLAGS=["rcs"],
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ASFLAGS=[
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"-c",
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"-g", # include debugging info (so errors include line numbers)
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"-x", "assembler-with-cpp",
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"-Wall",
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"-mthumb",
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"-mcpu=${BOARD_OPTIONS['build']['mcu']}"
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],
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CCFLAGS=[
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"-g", # include debugging info (so errors include line numbers)
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"-Os", # optimize for size
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"-ffunction-sections", # place each function in its own section
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"-fdata-sections",
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"-Wall",
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"-mthumb",
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"-mcpu=${BOARD_OPTIONS['build']['mcu']}",
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"-MMD" # output dependancy info
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],
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CXXFLAGS=[
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"-fno-rtti",
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"-fno-exceptions"
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],
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UPLOADER=join("$PIOPACKAGES_DIR", "tool-stlink", "st-flash"),
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UPLOADERFLAGS=[
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"write", # write in flash
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"$SOURCES", # firmware path to flash
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"0x08000000" # flash start adress
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],
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UPLOADCMD="$UPLOADER $UPLOADERFLAGS"
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)
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env.Append(
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CPPDEFINES=[
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"F_CPU=$BOARD_F_CPU",
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"${BOARD_OPTIONS['build']['variant'].upper()}"
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]
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)
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env.Append(
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LINKFLAGS=[
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"-Os",
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"-nostartfiles",
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"-nostdlib",
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"-Wl,--gc-sections",
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"-mthumb",
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"-mcpu=${BOARD_OPTIONS['build']['mcu']}"
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]
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)
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if env.get("BOARD_OPTIONS", {}).get("build", {}).get("mcu")[-2:] == "m4":
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env.Append(
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ASFLAGS=[
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"-mfloat-abi=hard",
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"-mfpu=fpv4-sp-d16",
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"-fsingle-precision-constant"
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],
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CCFLAGS=[
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"-mfloat-abi=hard",
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"-mfpu=fpv4-sp-d16",
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"-fsingle-precision-constant"
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],
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LINKFLAGS=[
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"-mfloat-abi=hard",
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"-mfpu=fpv4-sp-d16",
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"-fsingle-precision-constant"
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]
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)
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env.Append(
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BUILDERS=dict(
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ElfToBin=Builder(
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action=" ".join([
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"$OBJCOPY",
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"-O",
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"binary",
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"$SOURCES",
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"$TARGET"]),
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suffix=".bin"
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)
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)
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)
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CORELIBS = env.ProcessGeneral()
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#
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# Target: Build executable and linkable firmware
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#
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target_elf = env.BuildFirmware(CORELIBS + ["c", "gcc", "m", "nosys"])
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#
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# Target: Build the .bin file
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#
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if "uploadlazy" in COMMAND_LINE_TARGETS:
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target_bin = join("$BUILD_DIR", "firmware.bin")
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else:
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target_bin = env.ElfToBin(join("$BUILD_DIR", "firmware"), target_elf)
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#
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# Target: Upload by default .bin file
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#
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upload = env.Alias(["upload", "uploadlazy"], target_bin, ("$UPLOADCMD"))
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AlwaysBuild(upload)
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#
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# Target: Define targets
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#
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Default(target_bin)
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