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#
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# stm32_bootloader.py
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#
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import os,sys,shutil,marlin
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Import("env")
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from SCons.Script import DefaultEnvironment
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board = DefaultEnvironment().BoardConfig()
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#
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# Copy the firmware.bin file to build.firmware, no encryption
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#
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def noencrypt(source, target, env):
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firmware = os.path.join(target[0].dir.path, board.get("build.firmware"))
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shutil.copy(target[0].path, firmware)
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#
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# For build.offset define LD_FLASH_OFFSET, used by ldscript.ld
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#
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if 'offset' in board.get("build").keys():
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LD_FLASH_OFFSET = board.get("build.offset")
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marlin.relocate_vtab(LD_FLASH_OFFSET)
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# Flash size
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maximum_flash_size = int(board.get("upload.maximum_size") / 1024)
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marlin.replace_define('STM32_FLASH_SIZE', maximum_flash_size)
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# Get upload.maximum_ram_size (defined by /buildroot/share/PlatformIO/boards/VARIOUS.json)
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maximum_ram_size = board.get("upload.maximum_ram_size")
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for i, flag in enumerate(env["LINKFLAGS"]):
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if "-Wl,--defsym=LD_FLASH_OFFSET" in flag:
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env["LINKFLAGS"][i] = "-Wl,--defsym=LD_FLASH_OFFSET=" + LD_FLASH_OFFSET
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if "-Wl,--defsym=LD_MAX_DATA_SIZE" in flag:
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env["LINKFLAGS"][i] = "-Wl,--defsym=LD_MAX_DATA_SIZE=" + str(maximum_ram_size - 40)
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#
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# Only copy the file if there's no encrypt
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#
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board_keys = board.get("build").keys()
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if 'firmware' in board_keys and ('encrypt' not in board_keys or board.get("build.encrypt") == 'No'):
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import marlin
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marlin.add_post_action(noencrypt)
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