NAME
srec_ti_tagged_16 - Texas Instruments Tagged (SDSMAC 320) file format
DESCRIPTION
This format is also known as the TITagged or Texas Instruments SDSMAC
(320) 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
16‐bit 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 Word 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 count (in
hex) of the 16‐bit data word values (B) which follow, not including
data byte values (*). The remaining file header 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*0A7F641F
:
Here is another example from the reference below
00028 7FDCFF
90000BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F400F
90008BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F3F8F
90010BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F3FFF
90018BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F3F7F
90020BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F3FEF
:
SEE ALSO
http://www.dataio.com/pdf/Manuals/Unifamily/981‐0014‐016.pdf (page 6‐7)
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/