20 lines
437 B
Python
20 lines
437 B
Python
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import sys
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import struct
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import binascii
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FLASH_SECTOR_SIZE = 4096
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MAGIC_VALUE = 0xf00d
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elf_filename = sys.argv[1]
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output_filename = sys.argv[2]
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version = sys.argv[3]
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with open(elf_filename, 'r+b') as f:
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data = f.read()
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data = data[:-FLASH_SECTOR_SIZE]
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crc32_value = binascii.crc32(data) & 0xFFFFFFFF
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with open(output_filename, 'wb') as f:
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f.write(struct.pack('<HHI', MAGIC_VALUE, int(version), crc32_value))
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