NAME

       srec_tektronix - Tektronix hexadecimal file format

DESCRIPTION

       The  Tektronix  hexadecimal  file  format  is  no longer very common.  It serves a similar purpose to the
       Motorola and Intel formats, usually used to transfer data into EPROM programmers.

   The Lines
       Most Tektronix hex files contain only Tektronix hex lines (see the next section), which always start with
       a slash (“/[rq]) character.  There are only two types of lines - data lines and a termination line.

   Data Lines
       Data lines have five fields: address, length, checksum 1, data and checksum 2.  The  lines  always  start
       with a slash (“/[rq]) character.
                               ┌───┬─────────┬────────┬───────────┬──────┬───────────┐
                               │ / │ Address │ Length │ Checksum1 │ Data │ Checksum2 │
                               └───┴─────────┴────────┴───────────┴──────┴───────────┘

       Address This  is  a  4  character  (2  byte) address that specifies where the data in the record is to be
               loaded into memory.

       Data Length
               The data length field is a 2 character (1 byte) field that  specifies  the  number  of  character
               pairs (bytes) in the data field.  This field never has a value of zero.

       Checksum 1
               The  checksum  1  field  is  a 2 character (1 byte) field.  Its value is the 8‐bit sum of the six
               4‐bit values which make up the address and length fields.

       Data    The data field contains character pairs  (bytes);  the  number  of  character  pairs  (bytes)  is
               indicated by the length field.

       Checksum 2
               The checksum 2 field is a 2 character (1 byte) field.  Its value is the least significant byte of
               the sum of the all the 4‐bit values of the data field.

   Termination Line
       Termination  lines  have  three  fields: address, zero and checksum.  The lines always start with a slash
       (“/[rq]) character.
                                          ┌───┬─────────┬──────┬──────────┐
                                          │ / │ Address │ Zero │ Checksum │
                                          └───┴─────────┴──────┴──────────┘

       Address This is a 4 character (2 byte) address that specifies where to begin execution.

       Zero    The data length field is a 2 character (1 byte) field of value zero.

       Checksum
               The checksum 1 field is a 2 character (1 byte) field.  Its value is the  8‐bit  sum  of  the  six
               4‐bit values which make up the address and zero fields.

   Size Multiplier
       In  general,  binary  data  will  expand  in  sized by approximately 2.4 times when represented with this
       format.

EXAMPLE

       Here is an example Tektronix hex file.  It contains the data “Hello, World[rq] to be loaded at address 0.
              /00000D0D48656C6C6F2C20576F726C640A52
              /00000000

COPYRIGHT

       srec_cat version 1.64
       Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,  2011,  2012,
       2013, 2014 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.

MAINTAINER

       Scott Finneran   E‐Mail:   scottfinneran@yahoo.com.au
       Peter Miller     E‐Mail:   pmiller@opensource.org.au

Reference Manual                                     SRecord                                   srec_tektronix(5)