srec_ti_tagged_16(5)

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: +--+---+---+
|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 +a-a-and-+b-b-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
:

COPYRIGHT

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/

docs.sk

comprehensive documentation repository

Most Viewed