def prepare(address, ldname, fwname):
def encrypt(source, target, env):
marlin.encrypt_mks(source, target, env, fwname)
marlin.relocate_firmware(address)
marlin.custom_ld_script(ldname)
marlin.add_post_action(encrypt)
def prepare(address, ldname, fwname):
import pioutil
if pioutil.is_pio_build():
import marlin
def encrypt(source, target, env):
marlin.encrypt_mks(source, target, env, fwname)
marlin.relocate_firmware(address)
marlin.custom_ld_script(ldname)
marlin.add_post_action(encrypt)
#
# buildroot/share/PlatformIO/scripts/custom_board.py
#
import marlin
board = marlin.env.BoardConfig()
address = board.get("build.address", "")
if address:
marlin.relocate_firmware(address)
ldscript = board.get("build.ldscript", "")
if ldscript:
marlin.custom_ld_script(ldscript)
#
# buildroot/share/PlatformIO/scripts/chitu_crypt.py
# Customizations for Chitu boards
#
import os,random,struct,uuid,marlin
# Relocate firmware from 0x08000000 to 0x08008800
marlin.relocate_firmware("0x08008800")
def calculate_crc(contents, seed):
accumulating_xor_value = seed;
for i in range(0, len(contents), 4):
value = struct.unpack('<I', contents[ i : i + 4])[0]
accumulating_xor_value = accumulating_xor_value ^ value
return accumulating_xor_value
def xor_block(r0, r1, block_number, block_size, file_key):
# This is the loop counter
loop_counter = 0x0
# This is the key length
key_length = 0x18
# This is an initial seed
xor_seed = 0x4BAD
# This is the block counter
block_number = xor_seed * block_number
#load the xor key from the file