1srec_mos_tech(5)              File Formats Manual             srec_mos_tech(5)
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NAME

6       srec_mos_tech - MOS Technologies file format
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DESCRIPTION

9       The  Mos  Technologies  format  allows  binary files to be uploaded and
10       downloaded between between a computer system (such as a PC,  Macintosh,
11       or  workstation)  and  an  emulator  or  evaluation board for microcon‐
12       trollers and microprocessors.
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14   The Lines
15       Each line consists of 5 fields.  These are the  length  field,  address
16       field,  data  field,  and  the checksum.  The lines always start with a
17       semicolon (;) character.
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19   The Fields
20                    ┌──┬────────┬─────────┬──────┬──────────┬───┐
21                    │; │ Length │ Address │ Data │ Checksum │   │
22                    └──┴────────┴─────────┴──────┴──────────┴───┘
23       Length  The record length field is a 2 character (1  byte)  field  that
24               specifies the number of data bytes in the record.
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26       Address This  is  a 2-byte address that specifies where the data in the
27               record is to be loaded into memory.
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29       Data    The data field contains the  executable  code,  memory-loadable
30               data or descriptive information to be transferred.
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32       Checksum
33               The  checksum is an 2-byte field that represents the least sig‐
34               nificant two byte of the the sum of the values  represented  by
35               the pairs of characters making up the record's length, address,
36               and data fields.
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38   Size Multiplier
39       In general, binary data will expand in sized by approximately 2.4 times
40       when represented with this format.
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EXAMPLE

43       Here  is an example MOS Technologies format file.  It contains the data
44       ``Hello, World'' to be loaded at address 0.
45              S110000048656C6C6F2C20576F726C640A9D
46              ;00
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49       srec_cat version 1.35
50       Copyright (C) 1998, 1999, 2000, 2001, 2002,  2003,  2004,  2005,  2006,
51       2007 Peter Miller
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53       The srec_cat program comes with ABSOLUTELY NO WARRANTY; for details use
54       the 'srec_cat -VERSion License' command.  This is free software and you
55       are  welcome  to  redistribute it under certain conditions; for details
56       use the 'srec_cat -VERSion License' command.
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AUTHOR

59       Peter Miller   E-Mail:   millerp@canb.auug.org.au
60       /\/\*             WWW:   http://www.canb.auug.org.au/~millerp/
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64Reference Manual                    SRecord                   srec_mos_tech(5)
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