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.
Data
Byte
One byte of data. The nn is 8-bit big-endian
hexadecimal.
End of
File
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
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
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
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
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
Two bytes of data. The aa and bb are each
8-bit big-endian hexadecimal.
End of
Record
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
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.