NAME¶
srec_ti_tagged_16 - Texas Instruments Tagged (SDSMAC 320) file format
DESCRIPTION¶
This format is also known as the
TI‐Tagged 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¶
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.
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¶
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*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 1.58
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¶