man srec_ti_tagged (Formats) - Texas Instruments Tagged file format
NAME
srec_ti_tagged - Texas Instruments Tagged 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.
center,tab(;);
l l.
Tag;Description
_
*;T{
Data byte.
T}
:;T{
End of file.
T}
7;T{
Address.
T}
8;T{
Dummy checksum (ignored).
T}
9;T{
Address.
T}
B;T{
Data word.
T}
F;T{
End of data record.
T}
K;T{
Program identifier.
T}
Data Byte
allbox,center,tab(;);
lf(CW) lf(I) lf(I).
B;n;n
One byte of data.
The nn is 8-bit big-endian hexadecimal.
End of File
allbox,center,tab(;);
lf(CW) l.
:;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.
Checksum
allbox,center,tab(;);
lf(CW) lf(I) lf(I) lf(I) lf(I).
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
allbox,center,tab(;);
lf(CW) lf(I) lf(I) lf(I) lf(I).
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
allbox,center,tab(;);
lf(CW) lf(I) lf(I) lf(I) lf(I).
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
allbox,center,tab(;);
lf(CW) lf(I) lf(I) lf(I) lf(I).
B;a;a;b;b
Two bytes of data.
The aa and bb are each 8-bit big-endian hexadecimal.
End of Record
allbox,center,tab(;);
lf(CW) l.
F;CRLF
The end of line sequence (LF on Unix systems, CRLF on PCs)
is escaped using this tag.
Program Identifier
allbox,center,tab(;);
lf(CW) lf(I) lf(I) lf(I) lf(I) lf(I).
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 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'' to be loaded at address 0x0100.
K000590100B4865B6C6CB6F2CB2057B6F72B6C64*0A7F648F :
COPYRIGHT
version
Copyright
Peter Miller;
All rights reserved.
The
program comes with ABSOLUTELY NO WARRANTY;
for details use the ' -VERSion License' command.
This is free software
and you are welcome to redistribute it under certain conditions;
for details use the ' -VERSion License' command.
AUTHOR
tab(;); l r l. Peter Miller;E-Mail:;millerp@canb.auug.org.au /\/\*;WWW:;http://www.canb.auug.org.au/~millerp/