Initial support for ESP32
This commit is contained in:
Valeriy Koval
+250
-1
@@ -12,4 +12,253 @@
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# @TODO
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import re
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from os.path import join
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from SCons.Script import (AlwaysBuild, Builder, Default, DefaultEnvironment)
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def _get_board_f_flash(env):
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frequency = env.subst("$BOARD_F_FLASH")
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frequency = str(frequency).replace("L", "")
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return str(int(int(frequency) / 1000000)) + "m"
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def build_espidf_bootloader():
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envsafe = env.Clone()
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framework_dir = env.subst("$ESPIDF_DIR")
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envsafe.Replace(
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CPPDEFINES=["ESP_PLATFORM", "BOOTLOADER_BUILD=1"],
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LIBPATH=[
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join(framework_dir, "components", "esp32", "ld"),
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join(framework_dir, "components", "bootloader", "src", "main")
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],
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LINKFLAGS=[
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"-Os",
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"-nostdlib",
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"-Wl,-static",
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"-u", "call_user_start_cpu0",
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"-Wl,-static",
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"-Wl,--gc-sections",
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"-T", "esp32.bootloader.ld",
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"-T", "esp32.rom.ld"
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]
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),
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envsafe.Append(CCFLAGS=["-fstrict-volatile-bitfields"])
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envsafe.Replace(
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LIBS=[
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envsafe.BuildLibrary(
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join("$BUILD_DIR", "bootloaderLog"),
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join(framework_dir, "components", "log")
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), "gcc"
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]
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)
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return envsafe.Program(
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join("$BUILD_DIR", "bootloader.elf"),
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envsafe.CollectBuildFiles(
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join("$BUILD_DIR", "bootloader"),
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join(framework_dir, "components", "bootloader", "src", "main")
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)
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)
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env = DefaultEnvironment()
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platform = env.PioPlatform()
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env.Replace(
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__get_board_f_flash=_get_board_f_flash,
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AR="xtensa-esp32-elf-ar",
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AS="xtensa-esp32-elf-as",
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CC="xtensa-esp32-elf-gcc",
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CXX="xtensa-esp32-elf-g++",
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OBJCOPY=join(platform.get_package_dir("tool-esptool"), "esptool.py"),
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RANLIB="xtensa-esp32-elf-ranlib",
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SIZETOOL="xtensa-esp32-elf-size",
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ARFLAGS=["rcs"],
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ASFLAGS=["-x", "assembler-with-cpp"],
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CFLAGS=["-std=gnu99"],
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CCFLAGS=[
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"-Os", # optimize for size
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"-nostdlib",
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"-Wpointer-arith",
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"-Wno-error=unused-function",
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"-Wno-error=unused-but-set-variable",
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"-Wno-error=unused-variable",
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"-mlongcalls",
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"-ffunction-sections",
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"-fdata-sections"
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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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"-std=gnu++11"
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],
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CPPDEFINES=[
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"ESP32",
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"ESP_PLATFORM",
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"F_CPU=$BOARD_F_CPU",
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"HAVE_CONFIG_H",
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"MBEDTLS_CONFIG_FILE=\\\"mbedtls/esp_config.h\\\""
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],
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LINKFLAGS=[
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"-Os",
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"-nostdlib",
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"-Wl,-static",
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"-u", "call_user_start_cpu0",
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"-Wl,-static",
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"-Wl,--undefined=uxTopUsedPriority",
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"-Wl,--gc-sections"
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],
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#
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# Packages
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#
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FRAMEWORK_ARDUINOESP32_DIR=platform.get_package_dir(
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"framework-arduinoespressif32"),
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ESPIDF_DIR=platform.get_package_dir("framework-espidf"),
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#
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# Upload
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#
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UPLOADER=join(platform.get_package_dir("tool-esptool"), "esptool.py"),
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UPLOADERFLAGS=[
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"--chip", "esp32",
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"--port", '"$UPLOAD_PORT"',
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"--baud", "$UPLOAD_SPEED",
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"write_flash", "-z",
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"--flash_mode", "$BOARD_FLASH_MODE",
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"--flash_freq", "${__get_board_f_flash(__env__)}"
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],
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UPLOADCMD='"$PYTHONEXE" "$UPLOADER" $UPLOADERFLAGS $SOURCE',
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PROGNAME="firmware",
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PROGSUFFIX=".elf"
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)
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if env.subst("$PIOFRAMEWORK") == "arduino":
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framework_dir = platform.get_package_dir("framework-arduinoespressif32")
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env.Append(
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UPLOADERFLAGS=[
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"0x1000", join("$FRAMEWORK_ARDUINOESP32_DIR", "tools",
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"sdk", "bin", "bootloader.bin"),
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"0x4000", join("$FRAMEWORK_ARDUINOESP32_DIR", "tools",
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"sdk", "bin", "partitions_singleapp.bin"),
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"0x10000"
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]
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)
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if env.subst("$PIOFRAMEWORK") == "espidf":
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framework_dir = platform.get_package_dir("framework-espidf")
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env.Append(
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UPLOADERFLAGS=[
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"0x1000", join("$BUILD_DIR", "bootloader.bin"),
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"0x4000", join("$BUILD_DIR", "partitions_singleapp.bin"),
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"0x10000"
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],
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PTABLE_SCRIPT=join("$ESPIDF_DIR", "components",
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"partition_table", "gen_esp32part.py"),
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PTABLE_FLAGS=[
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"-q", join("$ESPIDF_DIR", "components",
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"partition_table", "partitions_singleapp.csv"),
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join(env.subst("$BUILD_DIR"), "partitions_singleapp.bin")
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],
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PTABLE_CMD='"$PYTHONEXE" "$PTABLE_SCRIPT" $PTABLE_FLAGS'
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)
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env.Append(
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ASFLAGS=env.get("CCFLAGS", [])[:]
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)
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#
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# Framework and SDK specific configuration
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#
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env.Append(
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BUILDERS=dict(
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ElfToBin=Builder(
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action=env.VerboseAction(" ".join([
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'"$PYTHONEXE" "$OBJCOPY"',
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"--chip", "esp32",
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"elf2image",
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"--flash_mode", "$BOARD_FLASH_MODE",
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"--flash_freq", "${__get_board_f_flash(__env__)}",
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"-o", "$TARGET", "$SOURCES"
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]), "Building $TARGET"),
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suffix=".bin"
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)
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)
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)
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#
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# Target: Build executable and linkable firmware or SPIFFS image
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#
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def __tmp_hook_before_pio_3_2():
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env.ProcessFlags(env.get("BUILD_FLAGS"))
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# append specified LD_SCRIPT
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if ("LDSCRIPT_PATH" in env and
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not any(["-Wl,-T" in f for f in env['LINKFLAGS']])):
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env.Append(LINKFLAGS=['-Wl,-T"$LDSCRIPT_PATH"'])
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target_elf = env.BuildProgram()
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if "PIOFRAMEWORK" in env:
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target_firm = env.ElfToBin(join("$BUILD_DIR", "firmware"), target_elf)
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if env.subst("$PIOFRAMEWORK") == "espidf":
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bootloader_bin = env.ElfToBin(
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join("$BUILD_DIR", "bootloader"), build_espidf_bootloader())
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target_buildprog = env.Alias(
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"buildprog", [target_firm, bootloader_bin], "$PTABLE_CMD")
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else:
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target_buildprog = env.Alias("buildprog", target_firm)
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#
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# Target: Print binary size
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#
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target_size = env.Alias(
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"size", target_elf,
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env.VerboseAction("$SIZEPRINTCMD", "Calculating size $SOURCE"))
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AlwaysBuild(target_size)
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#
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# Target: Upload firmware or SPIFFS image
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#
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target_upload = env.Alias(
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"upload", target_firm,
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[env.VerboseAction(env.AutodetectUploadPort, "Looking for upload port..."),
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env.VerboseAction("$UPLOADCMD", "Uploading $SOURCE")])
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env.AlwaysBuild(target_upload)
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#
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# Default targets
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#
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Default([target_buildprog, target_size])
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