write_data_without_ecc.py

import array
import binascii
from pathlib import Path

import ADSP_ecc

def is_ff(data):
    for b in data:
        if b != 0xff:
            return False
    return True

if __name__ == '__main__':
    file = '/Users/tolsi/Documents/op-1-rev/MT29F4G08ABBDA@BGA63_2131_without_3627_BB.BIN'
    out_file = '/Users/tolsi/Documents/op-1-rev/MT29F4G08ABBDA@BGA63_2131_without_3627_BB_and_ECC.BIN'
    filebytes = array.array('B')
    filebytes.fromfile(open(file, 'rb'), Path(file).stat().st_size)

    data_size = 256 * 8
    ecc_size = 8 * 8
    page_size = data_size + ecc_size
    block_size = page_size * 64

    with open(out_file, 'wb') as output:
        for block in range(0, 4096):
            for page in range(0, 64):
                start_index = block * block_size + page_size * page
                # data = filebytes[start_index:start_index + data_size]
                # ecc = filebytes[start_index + data_size:start_index + page_size]
                for i in range(0, 8):
                    # i_ecc = filebytes[start_index + data_size + i * 8:start_index + data_size + i * 8 + 3]
                    i_data = filebytes[start_index + i * 256: start_index + i * 256 + 256]
                    output.write(i_data)
    print('Done!')