Marlin_Firmware/buildroot/share/PlatformIO/scripts/stm32_bootloader.py
2021-05-15 15:05:53 -05:00

44 lines
1.4 KiB
Python

#
# 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)