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- #
- # stm32_bootloader.py
- #
- import os,sys,shutil,marlin
- 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")
- marlin.relocate_vtab(LD_FLASH_OFFSET)
-
- # Flash size
- maximum_flash_size = int(board.get("upload.maximum_size") / 1024)
- marlin.replace_define('STM32_FLASH_SIZE', maximum_flash_size)
-
- # 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 ('encrypt' not in board_keys or board.get("build.encrypt") == 'No'):
- import marlin
- marlin.add_post_action(noencrypt)
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