srec_ti_tagged(5) File Formats Manual srec_ti_tagged(5)
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 1.58
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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/
Reference Manual SRecord srec_ti_tagged(5)