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

6       srec_tektronix_extended - Tektronix Extended hexadecimal file format
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DESCRIPTION

9       This  format  allows binary files to be uploaded and downloaded between
10       two computer systems, typically between a computer system  (such  as  a
11       PC,  Macintosh, or workstation) and an emulator or evaluation board for
12       microcontrollers and microprocessors.
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14   The Lines
15       Lines always start with a percent (%) character.  Each line consists of
16       5  fields.   These  are the length field, the type field, the checksum,
17       the address field (including address length), and the data field.
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19   The Fields
20                   ┌──┬────────┬──────┬──────────┬─────────┬──────┐
21                   │% │ Length │ Type │ Checksum │ Address │ Data │
22                   └──┴────────┴──────┴──────────┴─────────┴──────┘
23       Record Length
24               The record length field is a 2 character (1  byte)  field  that
25               specifies  the  number of characters (not bytes) in the record,
26               excluding the percent, the length field, the type field and the
27               checksum.
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29       Type    The  type  field  is a 1 character field that specifies whether
30               the record is data (6) or termination (8).
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32       Checksum
33               The checksum is an 2 character (1 byte) field  that  represents
34               the sum of all the nibbles on the line, excluding the checksum.
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36       Address This  is  a  9  character  field.   The  first character is the
37               address size; it is always 8.  The remaining 8 chgaracters  are
38               the  4‐byte  address  that  specifies  where  the data is to be
39               loaded into memory.
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41       Data    The data field contains the  executable  code,  memory‐loadable
42               data or descriptive information to be transferred.
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44   Record Types
45       6       A  record  containing  data.  The data is placed at the address
46               specified.
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48       8       A termination record.  The address field may optionally contain
49               the  address  of  the  instruction  to which control is passed.
50               There is no data field.
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52   Size Multiplier
53       In general, binary data will expand in sized by approximately 2.5 times
54       when represented with this format.
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EXAMPLE

57       Here  is  an  example  Tektronix  extended  file.  It contains the data
58       “Hello, World[rq] to be loaded at address 0x006B.
59              %256D980000006B48656C6C6F2C20576F726C64210A
60              %09819800000000
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63       srec_cat version 1.55
64       Copyright (C) 1998, 1999, 2000, 2001, 2002,  2003,  2004,  2005,  2006,
65       2007, 2008, 2009, 2010 Peter Miller
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67       The srec_cat program comes with ABSOLUTELY NO WARRANTY; for details use
68       the 'srec_cat -VERSion License' command.  This is free software and you
69       are  welcome  to  redistribute it under certain conditions; for details
70       use the 'srec_cat -VERSion License' command.
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AUTHOR

73       Peter Miller   E‐Mail:   pmiller@opensource.org.au
74       /\/\*             WWW:   http://miller.emu.id.au/pmiller/
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78Reference Manual                    SRecord         srec_tektronix_extended(5)
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