Valeriy Koval
191 lines
4.2 KiB
Python
191 lines
4.2 KiB
Python
# Copyright 2014-2016 Ivan Kravets <me@ikravets.com>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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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"""
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Builder for Microchip PIC32 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="pic32-ar",
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AS="pic32-as",
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CC="pic32-gcc",
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CXX="pic32-g++",
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OBJCOPY="pic32-objcopy",
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RANLIB="pic32-ranlib",
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SIZETOOL="pic32-size",
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ARFLAGS=["rcs"],
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ASFLAGS=[
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"-g1",
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"-O2",
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"-Wa,--gdwarf-2",
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"-mprocessor=$BOARD_MCU"
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],
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CCFLAGS=[
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"-w",
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"-g",
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"-O2",
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"-MMD",
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"-mdebugger",
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"-mno-smart-io",
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"-mprocessor=$BOARD_MCU",
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"-ffunction-sections",
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"-fdata-sections",
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"-Wcast-align",
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"-fno-short-double",
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"-ftoplevel-reorder"
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],
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CXXFLAGS=["-fno-exceptions"],
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CPPDEFINES=[
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"F_CPU=$BOARD_F_CPU",
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"MPIDEVER=16777998",
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"MPIDE=150"
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],
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LINKFLAGS=[
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"-w",
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"-Os",
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"-mdebugger",
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"-mprocessor=$BOARD_MCU",
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"-mno-peripheral-libs",
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"-nostartfiles",
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"-Wl,--gc-sections",
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join(
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"$PLATFORMFW_DIR",
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"cores",
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"${BOARD_OPTIONS['build']['core']}",
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"cpp-startup.S"
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),
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join(
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"$PLATFORMFW_DIR",
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"cores",
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"${BOARD_OPTIONS['build']['core']}",
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"crti.S"
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)
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],
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LIBS=["m"],
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SIZEPRINTCMD='"$SIZETOOL" -B -d $SOURCES',
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UPLOADER=join("$PIOPACKAGES_DIR", "tool-pic32prog", "pic32prog"),
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UPLOADERFLAGS=[
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"-b", "$UPLOAD_SPEED",
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"-d", '"$UPLOAD_PORT"'
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],
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UPLOADCMD='"$UPLOADER" $UPLOADERFLAGS $SOURCES',
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PROGNAME="firmware",
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PROGSUFFIX=".elf"
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)
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if int(env.get("BOARD_OPTIONS", {}).get(
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"upload", {}).get("maximum_ram_size", 0)) < 65535:
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env.Append(
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ASFLAGS=["-G1024"],
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CCFLAGS=["-G1024"]
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)
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env.Append(
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BUILDERS=dict(
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ElfToEep=Builder(
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action=" ".join([
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"$OBJCOPY",
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"-O",
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"ihex",
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"-j",
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".eeprom",
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'--set-section-flags=.eeprom="alloc,load"',
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"--no-change-warnings",
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"--change-section-lma",
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".eeprom=0",
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"$SOURCES",
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"$TARGET"]),
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suffix=".eep"
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),
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ElfToHex=Builder(
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action=" ".join(["pic32-bin2hex", "-a", "$SOURCES"]), suffix=".hex"
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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
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#
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target_elf = env.BuildProgram()
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#
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# Hook: Fix option for LD script
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#
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_new_linkflags = []
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for f in env['LINKFLAGS']:
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if not f.startswith("-Wl,-T"):
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_new_linkflags.append(f)
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else:
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_new_linkflags.append("-Wl,--script=%s" % f[6:])
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env.Replace(LINKFLAGS=_new_linkflags)
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env.Append(
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LINKFLAGS=[
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"-Wl,--script=chipKIT-application-COMMON%s.ld" % (
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"-MZ" if "MZ" in env.get("BOARD_OPTIONS", {}).get(
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"build", {}).get("mcu") else "")
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]
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)
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#
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# Target: Build the .hex
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#
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if "uploadlazy" in COMMAND_LINE_TARGETS:
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target_firm = join("$BUILD_DIR", "firmware.hex")
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else:
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target_firm = env.ElfToHex(target_elf)
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#
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# Target: Print binary size
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#
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target_size = env.Alias("size", target_elf, "$SIZEPRINTCMD")
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AlwaysBuild(target_size)
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#
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# Target: Upload firmware
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#
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upload = env.Alias(["upload", "uploadlazy"], target_firm,
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[env.AutodetectUploadPort, "$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_firm, target_size])
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