Provided by: srecord_1.64-4.1build1_amd64 
NAME
srec_ti_tagged - Texas Instruments Tagged (SDSMAC) file format
DESCRIPTION
This format is also known as the TI‐Tagged or TI‐SDSMAC 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
Unlike many other object formats, the lines themselves are not especially significant. The format
consits of a number of tagged fields, and lines are composed of a series of these fields.
Tag Description
─────────────────────────────────────
* Data byte.
: End of file.
0 File header (optional).
7 Checksum.
8 Dummy checksum (ignored).
9 Address.
B Data word.
F End of data record.
K Program identifier (optional).
Data Byte
┌───┬───┬───┐
│ B │ n │ n │
└───┴───┴───┘
One byte of data. The nn is 8‐bit big‐endian hexadecimal.
End of File
┌───┬──────┐
│ : │ CRLF │
└───┴──────┘
The end of data is indicated by this tag. The end of line sequence (LF on Unix systems, CRLF on PCs)
follows this tag.
File Header
┌───┬────────┬──────────┐
│ 0 │ length │ filename │
└───┴────────┴──────────┘
The optional start‐of‐file record begins with a tag character ('0') and a 12‐character file header. The
first four characters are the byte count of the file data. The remaining 8 characters are the name of
the file and may be any ASCII characters, blank padded.
Checksum
┌───┬───┬───┬───┬───┐
│ 7 │ n │ n │ n │ n │
└───┴───┴───┴───┴───┘
The checksum is the 2s complement sum of the 8‐bit ASCII values of characters, beginning with the first
tag character and ending with the checksum tag character (7). The nnnn is 16‐bit big‐endian hexadecimal.
Dummy Checksum
┌───┬───┬───┬───┬───┐
│ 8 │ n │ n │ n │ n │
└───┴───┴───┴───┴───┘
The checksum is the 2s complement sum of the 8‐bit ASCII values of characters, beginning with the first
tag character and ending with the checksum tag character (8). The nnnn is 16‐bit big‐endian hexadecimal.
Address
┌───┬───┬───┬───┬───┐
│ 9 │ n │ n │ n │ n │
└───┴───┴───┴───┴───┘
Addresses may be given for any data byte, but none is mandatory. The file begins at 0000 if no address
is given before the first data field. The nnnn is 16‐bit big‐endian hexadecimal.
Data Word
┌───┬───┬───┬───┬───┐
│ B │ a │ a │ b │ b │
└───┴───┴───┴───┴───┘
Two bytes of data. The aa and bb are each 8‐bit big‐endian hexadecimal.
End of Record
┌───┬──────┐
│ F │ CRLF │
└───┴──────┘
The end of line sequence (LF on Unix systems, CRLF on PCs) is escaped using this tag. The checksum is
reset to zero at this point.
Program Identifier
┌───┬───┬───┬───┬───┬──────┐
│ K │ n │ n │ n │ n │ text │
└───┴───┴───┴───┴───┴──────┘
The program identifier can contain a brief description of the program, or can be empty (i.e. the text
portion is optional). The nnnn length (hex) of the field includes the `K', the length and the text; it
is at least 5.
Size Multiplier
In general, binary data will expand in sized by approximately 2.9 times when represented with this
format.
EXAMPLE
Here is an example TI‐Tagged file. It contains the data “Hello, World[rq] to be loaded at address
0x0100.
K000590080B4865B6C6CB6F2CB2057B6F72B6C64*0A7F648F
:
and here is another example from the reference below
00050 7FDD4F
90000BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F400F
90010BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F3FFF
90020BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F3FEF
90030BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F3FDF
90040BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F3FCF
:
SEE ALSO
http://www.dataio.com/pdf/Manuals/Unifamily/981‐0014‐016.pdf (page 6‐33)
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_ti_tagged(5)