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       srec_tektronix_extended - Tektronix Extended hexadecimal file format


       This  format  allows binary files to be uploaded and downloaded between
       two computer systems, typically between a computer system  (such  as  a
       PC,  Macintosh, or workstation) and an emulator or evaluation board for
       microcontrollers and microprocessors.

   The Lines
       Lines always start with a percent (%) character.  Each line consists of
       5  fields.   These  are the length field, the type field, the checksum,
       the address field (including address length), and the data field.

   The Fields
                   |% | Length | Type | Checksum | Address | Data |
       Record Length
               The record length field is a 2 character (1  byte)  field  that
               specifies  the  number of characters (not bytes) in the record,
               excluding the percent, the length field, the type field and the

       Type    The  type  field  is a 1 character field that specifies whether
               the record is data (6) or termination (8).

               The checksum is an 2 character (1 byte) field  that  represents
               the sum of all the nibbles on the line, excluding the checksum.

       Address This is a 9  character  field.   The  first  character  is  the
               address  size; it is always 8.  The remaining 8 chgaracters are
               the 4‐byte address that specifies  where  the  data  is  to  be
               loaded into memory.

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

   Record Types
       6       A record containing data.  The data is placed  at  the  address

       8       A termination record.  The address field may optionally contain
               the address of the instruction  to  which  control  is  passed.
               There is no data field.

   Size Multiplier
       In general, binary data will expand in sized by approximately 2.5 times
       when represented with this format.


       Here is an example Tektronix  extended  file.   It  contains  the  data
       “Hello, World[rq] to be loaded at address 0x006B.


       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: