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    oc51 cdu
    oh51 cdu.b01 hexfile (cdu_01.hex)
    oh51 cdu.b02 hexfile (cdu_02.hex)
    oh51 cdu.b03 hexfile (cdu_03.hex)
    hex2bin cdu_01.hex cdu_00.bin ff 0000 8000
    hex2bin cdu_01.hex cdu_01.bin ff 8000 8000
    hex2bin cdu_02.hex cdu_02.bin ff 8000 8000
    hex2bin cdu_03.hex cdu_03.bin ff 8000 7BFC
    copy cdu_00.bin /b + cdu_01.bin /b + cdu_02.bin /b + cdu_03.bin /b cdu_image.bin /b
    ChkSumCalc cdu_image.bin check_code.h
    type check_code.h
    echo Press a key to continue...
    pause