CCS/TMS320DM642: How to Read the .dat file into the CCS project?

Hello,

user4763388 said:

The Head line of the .dat file is setting like this:1651 2 8cc0 0 1a70c.I want to know what the means of the head line

This is documented in the CCS Help (Help -> Help Contents -> Code Composer Studio Help -> Views and Editors -> Memory View -> Data File Formats)

Right from this help:

MagicNumber Format StartingAddress PageNum Length [NewFormat]

MagicNumber—fixed at 1651.
Format—a number from 1 to 4, indicating the format of the samples in the file. This number represents a data format: (1) hexadecimal, (2) integer, (3) long, (4) float, or (9) Use new scheme
StartingAddress—starting address of the block that was saved.
PageNum—page number the block was taken from.
Length—number of samples in the block.
NewFormat—Format (9); the new scheme. This is optional when usign the legacy formats 1 - 4

In your case:

user4763388 said:

1651 2 8cc0 0 1a70c

1651 is a fixed value indicating it is a CCS *.dat file

2 indicates that the vales in the *.dat file are integers

0x8cc0 is the start address of where the values in the *.dat file will be loaded to in target memory

0 indicates that the values will be loaded to page 0 (which is program memory page on a C55x)

0x1a70c indicates the hexidecimal number of data samples in the file

This header is generated when saving target memory to a *.dat file on your PC via CCS. If you manually create a *.dat for input into CCS, you can create the header yourself. If there is no header, I believe CCS will ask you for the information.

Thanks

ki