Man Linux: Main Page and Category List


       srec_stewie - Stewie’s binary file format


       If you have a URL for documentation of this format, please let me know.

       Any resemblance to the Motorola S‐Record is  superficial,  and  extends
       only  to  the data records.  The header records and termination records
       are completely different.  None of the other Motorola S‐Records  record
       type are available.

   The Records
       All  records  start  with  an  ASCII  capital  S character, value 0x53,
       followed by a type specifier  byte.   All  records  consist  of  binary

   The Header Record
       Each file starts with a fixed four byte header record.

                             |0x53 | 0x30 | 0x30 | 0x33 |
   The Data Records
       Each data record consists of 5 fields. These are the type field, length
       field, address field, data field, and the checksum.  The  lines  always
       start with a capital S character.

              |0x53 | Type | Record Length | Address | Data | Checksum |
       Type    The  type  field is a one byte field that specifies whether the
               record has  a  two‐byte  address  field  (0x31),  a  three‐byte
               address  field (0x32) or a four‐byte address field (0x33).  The
               address is big‐endian.

       Record Length
               The record length field is a one byte field that specifies  the
               number of bytes in the record following this byte.

       Address This  is  a  2‐,  3‐ or 4‐byte address that specifies where the
               data in the record is to be loaded into memory.

       Data    The data field contains the  executable  code,  memory‐loadable
               data or descriptive information to be transferred.

               The  checksum  is  a  one  byte field that represents the least
               significant byte of the one’s complement  of  the  sum  of  the
               values  represented by the bytes making up the record’s length,
               address, and data fields.

   The Termination Record
       Each file ends with a fixed two byte termination record.

                                    |0x53 | 0x38 |
   Size Multiplier
       In general, binary data will expand in sized by approximately 1.2 times
       when represented with this format.


       Here  is  an  hex‐dump  example  file.   It  contains  the data “Hello,
       World[rq] to be loaded at address 0.
              0000: 53 30 30 33 53 31 10 00 00 48 65 6C 6C 6F 2C 20  S003S1...Hello,
              0010: 57 6F 72 6C 64 0A 9D 53 38                       World..S8


       srec_cat version 1.55
       Copyright (C) 1998, 1999, 2000, 2001, 2002,  2003,  2004,  2005,  2006,
       2007, 2008, 2009, 2010 Peter Miller

       The srec_cat program comes with ABSOLUTELY NO WARRANTY; for details use
       the ’srec_cat -VERSion License’ command.  This is free software and you
       are  welcome  to  redistribute it under certain conditions; for details
       use the ’srec_cat -VERSion License’ command.


       Peter Miller   E‐Mail:
       /\/\*             WWW: