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Man Pages


Manual Reference Pages  -  SREC_TI_TAGGED_16 (5)

NAME

srec_ti_tagged_16 - Texas Instruments Tagged (SDSMAC 320) file format

CONTENTS

Description
     The Lines
     Data Byte
     End of File
     File Header
     Checksum
     Dummy Checksum
     Address
     Data Word
     End of Record
     Program Identifier
     Size Multiplier
Example
See Also
Copyright
Maintainer

DESCRIPTION

This format is also known as the I]TI[hy]Tagged or I]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[hy]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.

TagDescription
*Data byte.
:End of file.
0File header (optional).
7Checksum.
8Dummy checksum (ignored).
9Word Address.
BData word.
FEnd of data record.
KProgram identifier (optional).

    Data Byte

Bnn

One byte of data. The nn is 8[hy]bit big[hy]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

0lengthfilename

The optional start[hy]of[hy]file record begins with a tag character (’0’) and a 12[hy]character file header. The first four characters are the count (in hex) of the 16[hy]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

7nnnn

The checksum is the 2s complement sum of the 8[hy]bit ASCII values of characters, beginning with the first tag character and ending with the checksum tag character (7). The nnnn is 16[hy]bit big[hy]endian hexadecimal.

    Dummy Checksum

8nnnn

The checksum is the 2s complement sum of the 8[hy]bit ASCII values of characters, beginning with the first tag character and ending with the checksum tag character (8). The nnnn is 16[hy]bit big[hy]endian hexadecimal.

    Address

9nnnn

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[hy]bit big[hy]endian hexadecimal.

    Data Word

Baabb

Two bytes of data. The aa and bb are each 8[hy]bit big[hy]endian hexadecimal.

    End of Record

FCRLF

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

Knnnntext

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[hy]Tagged file. It contains the data [lq]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[hy]0014[hy]016.pdf (page 6[hy]7)

COPYRIGHT

srec_cat version 1.64
Copyright © 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.

MAINTAINER

Scott FinneranE[hy]Mail:scottfinneran@yahoo.com.au
Peter MillerE[hy]Mail:pmiller@opensource.org.au
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Reference Manual *(N) (5) SRecord

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