46 lines
1.4 KiB
Python
46 lines
1.4 KiB
Python
#
|
|
# stm32_bootloader.py
|
|
#
|
|
import os,sys,shutil
|
|
Import("env")
|
|
|
|
from SCons.Script import DefaultEnvironment
|
|
board = DefaultEnvironment().BoardConfig()
|
|
|
|
#
|
|
# Copy the firmware.bin file to build.firmware, no encryption
|
|
#
|
|
def noencrypt(source, target, env):
|
|
firmware = os.path.join(target[0].dir.path, board.get("build.firmware"))
|
|
shutil.copy(target[0].path, firmware)
|
|
|
|
#
|
|
# For build.offset define LD_FLASH_OFFSET, used by ldscript.ld
|
|
#
|
|
if 'offset' in board.get("build").keys():
|
|
LD_FLASH_OFFSET = board.get("build.offset")
|
|
|
|
# Remove an existing VECT_TAB_OFFSET from CPPDEFINES
|
|
for define in env['CPPDEFINES']:
|
|
if define[0] == "VECT_TAB_OFFSET":
|
|
env['CPPDEFINES'].remove(define)
|
|
|
|
# Replace VECT_TAB_OFFSET with our LD_FLASH_OFFSET
|
|
env['CPPDEFINES'].append(("VECT_TAB_OFFSET", LD_FLASH_OFFSET))
|
|
|
|
# Get upload.maximum_ram_size (defined by /buildroot/share/PlatformIO/boards/VARIOUS.json)
|
|
maximum_ram_size = board.get("upload.maximum_ram_size")
|
|
|
|
for i, flag in enumerate(env["LINKFLAGS"]):
|
|
if "-Wl,--defsym=LD_FLASH_OFFSET" in flag:
|
|
env["LINKFLAGS"][i] = "-Wl,--defsym=LD_FLASH_OFFSET=" + LD_FLASH_OFFSET
|
|
if "-Wl,--defsym=LD_MAX_DATA_SIZE" in flag:
|
|
env["LINKFLAGS"][i] = "-Wl,--defsym=LD_MAX_DATA_SIZE=" + str(maximum_ram_size - 40)
|
|
|
|
#
|
|
# Only copy the file if there's no encrypt
|
|
#
|
|
board_keys = board.get("build").keys()
|
|
if 'firmware' in board_keys and not 'encrypt' in board_keys:
|
|
env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", noencrypt)
|