srec_tektronix(5)
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 1.55
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.
AUTHOR
- Peter Miller E-Mail: pmiller@opensource.org.au
/\/\* WWW: http://miller.emu.id.au/pmiller/